Entries |
Document | Title | Date |
20080272056 | Method and Apparatus for Separating Impurities from a Liquid Stream by Electrically Generated Gas Bubbles - A method and apparatus for separating impurities from a liquid stream includes a feed tank for containing an untreated liquid, a mixer for generating and mixing bubbles throughout the wastewater, and a settling tank for allowing the wastewater to settle for removal of impurities through dissolved gas floatation. The mixer includes a housing and a rotor rotatably mounted within the housing. The rotor is electrically isolated and the peripheral wall of the housing is electrically isolated and the rotor preferably has bores formed in its peripheral surface to produce cavitation to aid in mixing of fluid within the mixer. A power supply is coupled to establish a relatively positive electrical charge on the rotor and a relatively negative electrical charge on the wall of the housing. The charge causes electrolysis to occur within the fluid, which forms small low surface tension gas bubbles on the rotor and housing wall. These bubbles detach and are mixed with the fluid, where they can attach to and separate impurities through dissolved gas floatation. | 11-06-2008 |
20080308502 | Method and Apparatus for Contacting Bubbles and Particles in a Flotation Separation System - A flotation separation apparatus for separating particles in suspensions, feeds slurry containing the particles through an inlet ( | 12-18-2008 |
20090008336 | Improvements to a Fluid Jet Flotation Apparatus - A fluid jet flotation apparatus | 01-08-2009 |
20090057234 | METHOD FOR MAKING BROWN GREASE - A method and system for recovering grease from wastewater is disclosed. According to one embodiment of the present invention, the method includes receiving wastewater comprising an aqueous phase and an organic phase, wherein the organic phase comprises solids and grease; pretreating the wastewater to produce a waste sludge stream comprising water, solids, and grease, wherein a substantial amount of the solids and grease from the wastewater are extracted into the waste sludge stream; separating the waste sludge in a first separation stage to provide a first separation phase consisting essentially of solids, and a second separation phase comprising an immiscible liquid mixture of grease and water; and separating the second separation phase to provide a third separation phase consisting essentially of water and a fourth separation phase consisting essentially of grease. According to another embodiment of the present invention, the system includes a pretreatment facility capable of extracting a substantial portion of the solids from the wastewater stream to produce a waste sludge; a first separator capable of separating the waste sludge into a first separation phase consisting essentially of solids from the waste sludge, and a second separation phase comprising an immiscible mixture of water and grease; a second separator capable of separating the second separation phase into a third separation phase consisting essentially of water, and a fourth separation phase consisting essentially of grease. | 03-05-2009 |
20090134093 | PROCESS FOR TREATING EFFLUENTS FROM THE OIL INDUSTRY FOR DISCHARGE OR REUTILIZATION - A process is described for treating effluents from oil production units for discharge or reutilization, to remove oil and other soluble toxic contaminants such as sulphides, benzenes, toluenes, xylenes and polyaromatic hydrocarbons, before discharging or reusing this effluent, especially in an offshore environment. This process for effluent treatment includes a step of changing the thermodynamic equilibrium conditions of an oil-in-water emulsion, followed by a step of separating the oil and the water, to be carried out in an offshore oil production unit. | 05-28-2009 |
20090200242 | Protein skimmer with stationary fan - A protein skimmer having a water column chamber and a fixed deflector. The fixed deflector including a plurality of blades that impart a swirling action on water flowing through the deflector. The deflector further providing an even distribution of bubbles within the water column chamber during protein filtering operation. The deflector including a central hub that aids in maintaining the velocity of water flowing through the deflector. | 08-13-2009 |
20090218293 | PRESSURISED WATER RELEASING NOZZLE FOR GENERATING MICROBUBBLES IN A FLOTATION PLANT - The inventive nozzle comprises a first releasing stage ( | 09-03-2009 |
20090294375 | FLUID TREATMENT APPARATUS - A fluid treatment apparatus comprises a fluid vessel defining first and second fluid chambers. A fluid inlet is provided for delivering a fluid to be treated into the first fluid chamber. One or more nozzle assemblies are provided for fluid communication between the first and second fluid chambers, wherein said nozzle assemblies are adapted to facilitate mixing of a gas with said fluid. The second fluid chamber is adapted to accommodate a fluid treatment process therein, including a floatation treatment. One specific use of the fluid treatment apparatus includes separating oil from water, particularly water produced from a subterranean formation. | 12-03-2009 |
20100089834 | METHOD OF DEWATERING GAS HYDRATE AND APPARATUS THEREFOR - A gas hydrate slurry dewatering apparatus adapted to feed a raw as into a cylindrical main body of dewatering column so gas to attain pressurization and so suction any gas from the interior of a drainage chamber disposed around the cylindrical main body so as to attain depressurization. An internal tube ( | 04-15-2010 |
20100108614 | INJECTOR FOR FLOTATION CELL - An injector for a flotation cell, comprising a feed channel for feeding a fiber suspension flow to the flotation cell, a flow distribution element for distributing the fiber suspension flow fed to the injector into partial flows, a mixing apparatus for mixing air with the fiber suspension flow, and at least one air input point for sucking air to be mixed with the fiber suspension flow into the injector. The feed channel, the flow distribution element and the mixing apparatus are in the injector arranged with respect to one another such that a flow direction of the fiber suspension flow in the feed channel is substantially opposite to a flow direction of the fiber suspension flow through the flow distribution element and the mixing apparatus. | 05-06-2010 |
20100116752 | APPARATUS AND METHODS FOR ENHANCED ELECTROCOAGULATION PROCESSING USING MEMBRANE AERATION - Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an ion rich air/gas stream and a membrane aerator for receiving the ionized air/gas stream and effluent to be treated. An ionized air/gas rich effluent feed stream flows out of the membrane aerator and is received at an electrocoagulation processing assembly for diffused ion enhanced electrocoagulation treatment. | 05-13-2010 |
20100133197 | APPARATUS FOR SEPARATING WASTE FROM CELLULOSE FIBRES IN PAPER RECYCLING PROCESSES - A contaminate separation apparatus for use in separating contaminant materials from cellulose and/or paper fibres in a paper recycling process includes a reservoir for receiving a waste paper slurry therein. The reservoir is provided with an inlet opening for the input of the slurry, one or more fibre discharge outlets or passages, and at least one waste outlet positioned vertically above the fibre discharge outlet opening. An agitator provided in a lower portion of the reservoir generates differential flow currents within the reservoir, to selectively divert plastics, waxes, adhesives and/or other sticky waste materials outwardly towards the waste outlet, while providing a flow of suspended paper and/or cellulose fibres to one or more of the fibre discharge outlets. | 06-03-2010 |
20100133198 | METHOD AND APPARATUS FOR SEPARATING WASTE PRODUCTS FROM CELLULOSE FIBRES IN A PAPER RECYCLING PROCESS - A contaminate separation apparatus for use in separating contaminant materials from cellulose and/or paper fibres in a paper recycling process includes a reservoir for receiving a waste paper slurry therein. The reservoir is provided with an inlet opening for the input of the slurry, one or more fibre discharge outlets or passages, and at least one waste outlet positioned vertically above the fibre discharge outlet opening. An agitator provided in a lower portion of the reservoir generates differential flow currents within the reservoir, to selectively divert plastics, waxes, adhesives and/or other sticky waste materials outwardly towards the waste outlet, while providing a flow of suspended paper and/or cellulose fibres to one or more of the fibre discharge outlets. | 06-03-2010 |
20100176062 | PROCESS AND APPARATUS FOR ADSORPTIVE BUBBLE SEPARATION USING A DENSE FOAM - A method of concentrating particles in a liquid-particle dispersion feed by adsorptive bubble separation by intimately contacting a gas with a pressurized stream of liquid in a chamber to form an aerated dispersion that retains at least some of the kinetic energy from the pressurized stream, and removing at least some of the kinetic energy from the aerated dispersion to form a dense foam. A liquid-particle dispersion feed is then injected into the dense foam to form a gas-liquid-particle dispersion. The gas-liquid-particle dispersion is injected into a flotation chamber at a point below a surface of a liquid contained therein, where the gas-liquid-particle dispersion forms bubbles of a gas-particle agglomerate, and the bubbles are released from the feed liquid depleted in hydrophobic particles and rise to the surface to form a floating froth enriched in particles. Also described is a device that includes plurality of chambers for aeration and mixing, feed injection, and a duct that is positioned below the liquid-foam line of a flotation chamber, so that the gas-liquid-particle dispersion is released within the chamber, and rises to the surface as a floating froth enriched in particles. | 07-15-2010 |
20100193445 | FOAMING OF LIQUIDS - Methods and systems for processing of liquids using compressed gases or compressed air are disclosed. In addition, methods and systems for mixing of liquids are disclosed. | 08-05-2010 |
20100314323 | METHOD AND APPARATUS FOR CONTINUOUS FLOW MEMBRANE-LESS ALGAE DEWATERING - In one aspect of the presently described embodiments, the system comprises an inlet to receive at least a portion of the fluid containing algae, a curved channel within which the fluid containing algae flows in a manner such that the neutrally buoyant algae flow in a band offset from a center of the curved channel, a first outlet for the fluid with algae within which the band flows, and, a second outlet for the remaining fluid. | 12-16-2010 |
20110031187 | WATER TREATMENT SYSTEM AND METHOD USING HIGH PRESSURE ADVANCED OXIDATION PROCESS WITH UNREACTED OZONE REUSING - A water treatment system using a high pressure advanced oxidation process with unreacted ozone reusing is disclosed, which are able to increase a decomposition speed of a pollutant by reusing a high pressure advanced oxidation process which uses an ozone and photocatalyst and a photo-oxidation reaction of a ultraviolet ray. The capacity of the expensive ozone generator can be reduced as compared to the conventional advanced oxidation process which uses a large capacity ozone generator in which almost ozone is discharged into the air. In addition, it is possible to decrease the load of the off-gas ozone removing apparatus for removing the off-gas ozone which is discharged into the air. | 02-10-2011 |
20110036779 | Method for separating suspended solids from a waste fluid - The disclosure relates to a separation process. An aerated inlet mixture of fluid and solids is fed to a flotation separation vessel and is separated into an upper float layer and a lower clarified layer. The upper float layer is withdrawn from the vessel when the height of the upper float layer exceeds the height of an overflow conduit and forms a concentrated solids effluent The lower clarified layer is withdrawn from the separation vessel as a clarified fluid effluent. The separation process is performed continuously using a control process that maintains a relatively stable distribution between the lower clarified layer and the upper float layer. The control process is a closed loop process that monitors the instantaneous height of the vessel contents and computes an error function based on the instantaneous height and a set-point height The error function is used to periodically adjust the outlet flowrate of the clarified fluid effluent. The resulting process has improved stability (e.g., being continuously operable without interruption and/or operable for extended periods between intermittent cleaning processes) and provides a concentrated solids effluent with solids concentrations higher than those previously attainable in similar separation processes. | 02-17-2011 |
20110114565 | Dissolved air flotation clarifier - A dissolved air flotation clarifier for removing impurities from a liquid to be clarified. The dissolved air flotation clarifier includes a housing having an inlet for receiving a liquid to be clarified. The housing further includes a reaction zone, a clarification zone and an effluent channel. The reaction zone has at least one saturated water distributor and at least one dissolved air flotation nozzle operably connected to the at least one saturated water distributor to receive saturated water from the at least one saturated water distributor. The dissolved air flotation nozzle is configured to release micro-bubbles from a saturated water so that the micro-bubbles can mix with the liquid to be clarified to remove impurities from the liquid to be clarified. The clarification zone includes a flow control member for controlling the flow of the mixture of micro-bubbles and liquid in the clarification zone to ensure that the area surrounding the inlet to the effluent channel has little or no micro-bubbles to prevent or significantly reduce micro-bubbles from becoming entrained in a clarified liquid passing through the effluent channel. | 05-19-2011 |
20110114566 | PROCESS AND APPARATUS FOR SEPARATING HYDROCARBONS FROM PRODUCED WATER - A process for removing hydrocarbons such as oil from produced water entrains high concentrations of very small gas bubbles within produced water inside a vertically-oriented primary separation tank by means of aerators immersed in the water inside the tank. Oil droplets coat the gas bubbles which form a buoyant oil-rich froth phase overlying a gas-rich liquid phase. The froth phase flows out through a discharge port in a preferably conical upper section of the primary tank, for disposal or recovery of oil as appropriate. Solid contaminants not borne by the froth phase may be intermittently settled out of the liquid phase and removed for treatment or disposal through a discharge port in a preferably conical lower section of the primary tank. Clean processed water is drawn a medial region of the primary tank for re-use as appropriate. In a preferred embodiment, the froth phase passes into a secondary separation tank for further separation of contaminants by means of gravity and/or supplemental aeration. | 05-19-2011 |
20110163040 | VESSEL AND METHOD FOR TREATING CONTAMINATED WATER - A method for removing immiscible fluid from contaminated water includes at least one chamber; an injection line in fluid communication with an inlet of the one chamber; bubble generation means in fluid communication with the injection line for injecting gas bubbles into the injection line and allowing mixing in the injection line of the gas bubbles and the contaminated water to form an inlet fluid; an inlet weir within the chamber adjacent the inlet; an immiscible fluid weir within the chamber; a trough for collecting the immiscible fluid and allowing the immiscible fluid to flow out of the at least one chamber through an immiscible fluid outlet; and a cleaned water outlet generally at the bottom of the chamber. | 07-07-2011 |
20110168640 | GAS BUBBLE GENERATION FOR COALESCING - Apparatus is provided for introducing gas bubbles | 07-14-2011 |
20110198295 | Installation for Water Treatment by Flotation and Corresponding Water Treatment Method - The invention relates to a flotation water treatment plant comprising at least: an inlet zone ( | 08-18-2011 |
20110290737 | Self Contained Dissolved Air Flotation System - A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically. | 12-01-2011 |
20110297620 | METHOD AND DEVICE FOR CONVERTING HORIZONTAL TANKS INTO GAS FLOTATION SEPARATORS - A gas flotation separator for use in horizontal tanks, such as those used for oil storage on board Floating Production Storage and Off-loading (FPSO) vessels, includes dividing the tank into a plurality of chambers operating in series. Prior to entering each chamber, the contaminated aqueous phase is mixed with a stream containing gas bubbles to aid in flocculation and flotation of the immiscible phase contaminant. The gas bubble recycle stream can be generated by injecting a controlled rate of a pressurized gas into a liquid stream of the clean produced water in a process external to the tank or by induction of a gas phase internal to the tank. The mixture flows into the first chamber and impinges on an angled inlet water weir. A portion of the immiscible phase and the gas phase rises to the top of the chamber while the remaining immiscible contaminants flow downward with the aqueous phase to the bottom of the chamber. The aqueous phase makes a 180° turn upward by entering a plurality of parallel flow conduits formed into the wall of the baffle that separates the each series chamber. In each parallel duct a second gas bubble stream is injected to further aid in flocculation and flotation of the immiscible contaminants. The aqueous phase remixes at the top of the second chamber where it impinges on a second angled weir. This process is repeated in each series chamber until the last chamber where the cleaned water is pumped out of the chamber via a liquid pump. Varying the rate of water removal there from controls the water level in last chamber. The flocculated and floating oil contaminant can be removed by either 1) periodic skimming into an over-flow weir by raising the water level in the chamber, or 2) a continuously rotating paddle or brush object that lifts or carries the floating oil layer away from the water surface and transfers it to a collector system. | 12-08-2011 |
20110297621 | Crouse air bubble oil barrier - A Air Bubble Barrier blockade is a new invention that can be used in a oil spill response as a ‘blockade’ or ‘barrier’ to prevent oil from entering a area to be protected. The Air Bubble Barrier works by releasing a wall of air bubbles | 12-08-2011 |
20110303613 | Crouse oil spill response process - This is a new oil spill response process made up of a group of new inventions and or technologies that are new to the oil spill response industry. When used in any combination, these new inventions compliment each other forming a new process for cleaning up oil spills. These new inventions can work by themselves, and or they can work with any of the older equipment, techniques, and or processes for cleaning oil spills. | 12-15-2011 |
20120097616 | HYDROCYCLONE, SYSTEM AND METHOD FOR CLEANING CELLULOSE SUSPENSIONS - The present invention concerns a hydrocyclone for cleaning cellulose suspensions from light impurities i.e. a so called reverse hydrocyclone, having a base end and an apex end and a separation chamber having an elongated shape between the base end and the apex end, at least one inlet arranged at the base end and at least one underflow outlet at the apex end and at least one overflow outlet at the base end. The overflow outlet is provided with an additional, light reject outlet arranged concentrically to a length axis of the hydrocyclone. The invention also concerns a system and a method for producing and/or treating cellulose suspension comprising at least a reverse cleaning stage and at least a dewatering stage. | 04-26-2012 |
20120145642 | METHOD AND APPARATUS FOR TREATMENT OF FLUIDS - A method of fluid treatment of a feed comprising oil and water, the method comprising: supplying the feed into a flotation cell, the feed having an oil concentration, the flotation cell containing a working fluid and the working fluid having a surface; removing an oil phase from the surface of the working fluid; removing fluid from the flotation cell through one or more outlets below a working fluid level in the flotation cell; and controlling flow through the one or more outlets to maintain the working fluid level in the flotation cell within a predetermined range independent of variations in the oil concentration of the feed. A related apparatus is also disclosed. | 06-14-2012 |
20120152849 | ADSORPTIVE FLOTATION REMOVAL OF SODIUM TRIPOLYPHOSPHATE FROM WASTE LIQUID - Techniques are generally described herein for the removal of sodium tripolyphosphate from a waste liquid. Embodiments include, but are not limited to, methods, apparatuses, systems, and articles of manufacture. Other embodiments may also be disclosed and claimed. Some techniques described herein include adding a phosphate binder to the waste liquid including sodium tripolyphosphate to cause the sodium tripolyphosphate to adsorb to the phosphate binder, and aerating the waste liquid to form bubbles in the waste liquid and to cause particles of the phosphate binder having the sodium tripolyphosphate adsorbed thereto to adhere to the bubbles and rise to a top surface of the waste liquid. | 06-21-2012 |
20120152850 | Sedimentation and Floatation Wastewater Treatment Device with a Heater - A combined sedimentation and pressure floatation wastewater treatment tank includes a tank body, a sedimentation treatment device and a pressure floatation treatment device. The tank body contains a predetermined amount of wastewater for treatment. The sedimentation treatment device is operated to remove relatively heavier sludge from the wastewater by sedimentation treatment, and the pressure floatation treatment device is operated to remove relatively lighter sludge from the initially treated wastewater by pressure floatation treatment. In operation, the wastewater is initially treated by the sedimentation treatment device and is further treated by the pressure floatation treatment device. Alternatively, the wastewater is initially treated by the pressure floatation treatment device and is further treated by the sedimentation treatment device. | 06-21-2012 |
20120168385 | Apparatus and Method for the Treatment of Water - The present invention relates to an apparatus and method for the treatment of water and, in particular, an apparatus and method which may be applied to fluids such as grey water to be treated prior to discharge. The invention is intended for particular use on marine vessels such as house boats to treat grey water which at present is discharged untreated. | 07-05-2012 |
20120168386 | Dissolved Air Floatation with Filter System - A system for filtering organic molecules from an electrolyte solution, including a feed inlet line adapted to carry a solution with organic molecules, a filter vessel secured to the inlet line, and a pump adapted to introduce dissolved air into the solution in the feed inlet line. The filter vessel is a solvent extraction filter having coalescing media above a solution outlet at the bottom of the vessel and an organic vent outlet at the top of the vessel. The system operates by (a) dissolving air into the solution, (b) inputting the solution with dissolved air into the filter vessel, (c) outletting solution from the bottom vessel outlet to flow solution down through coalescing media, and (d) periodically venting floating organic molecules from the top of the vessel. | 07-05-2012 |
20120193294 | DISSOLVED GAS FLOTATION PRESSURE REDUCTION NOZZLE - A dissolved gas flotation pressure reduction nozzle ( | 08-02-2012 |
20120211431 | Dissolved Air Flotation System with Bubble Separation System and Method of Use - A dissolved air flotation system and method for purifying fresh water. | 08-23-2012 |
20120223019 | LIQUID TREATMENT SYSTEM - A liquid treatment system using gas flotation to separate suspended matter from liquid influent, including a flotation tank into which the liquid influent is fed through an inlet, an outlet conduit through which treated effluent is fed from the flotation tank, a separation conduit for feeding liquid to a bubble release point, means for pressurising the liquid in the separation conduit and dissolving gas in the pressurised liquid, wherein an energy recovery device is used for reducing pressure of the liquid before the bubble release point such that gas bubbles are released into the flotation tank for floating said suspended matter to a surface of the liquid in the tank, and wherein the energy recovery device supplies energy obtained through said pressure reduction of the liquid. | 09-06-2012 |
20120261350 | Method for Using Air to Remove Precipitated Contaminating Oil - The present invention relates to a method of removing deposited pollutant oil using air, and more particularly to a method of removing pollutant oil, which comprises injecting compressed air when oil has been deposited at the bottom of the sea, and injecting compressed air while supplying water when oil has been deposited on water-free sand, rock or soil, thereby degassing the oil while floating the remaining degassed oil on the water surface. More specifically, the method: introducing an air jet at the bottom below the water surface; injecting compressed air from the air jet, thereby raising water and sand or soil together with the compressed water, discharging gas by the kinetic energy of air bubbles caused by the compressed air flow to degas oil, and floating the degassed oil on the water surface; and removing the floated oil. | 10-18-2012 |
20120285892 | Separation Process - A bubble generator for generating gas bubbles for a flotation vessel, the bubble generator including at least one inlet through which a water stream can enter the bubble generator; at least one pair of electrodes capable of electrically decomposing water to create gas bubbles; and at least one outlet through which water entrained with gas bubbles can exit the bubble generator. In use, at least one of the outlets is in fluid communication with a flotation vessel containing waste water including contaminants, the gas bubbles being used to separate at least a portion of the contaminants from the waste water in the flotation vessel. | 11-15-2012 |
20120298587 | FLUID TREATMENT SYSTEM - A fluid treatment device and method is proposed for the treatment of a fluid that has components to be separated, such as tailings. The fluid treatment device in one embodiment comprises a motive pump connected to drive fluid to be treated along a conduit through a restriction forming a nozzle into a mixing chamber and thence to a discharge. A port, which may be controlled by a valve, admits gas into an initial portion of the mixing chamber. The motive pump, nozzle, gas port and mixing chamber together form a phase separator. Multiple phase separators may be connected together in series. The mixing chamber may have constant diameter and a length to diameter ratio of 20:1 or 60:1 or more. The conduit terminates in a discharge. The discharge may supply the treated fluid to a secondary separation device such as a flotation cell. Solids and liquids may be taken off the flotation cell for disposal, further processing or delivery into a sales line. | 11-29-2012 |
20130015140 | Method and Device for Treatment of WaterAANM Lothe; PerAACI ForresfjordenAACO NOAAGP Lothe; Per Forresfjorden NO - A method is for the treatment of ballast water, in which the ballast water is carried into a ballast tank via a down pipe and in which an underpressure created at the upper portion of the down pipe induces the formation of gas bubbles in the ballast water. Before flowing into the down pipe, the ballast water is carried via a throttling device into a closed container at the upper portion of the down pipe, the closed container having a flow area larger than the flow area of the down pipe. | 01-17-2013 |
20130075338 | Induced-Gas Flotation Cell with Horizontal Flow - An improved induced-gas separation vessel made according to this invention and method for its use includes an elongated, horizontally oriented vessel having compartments defined by adjacent pairs of perforated baffles which span the width but not the height of the vessel. One or more gas eductors are located within each compartment. An inlet device controls the momentum or velocity of the incoming water stream and rapidly converts it to horizontal flow prior to it encountering the first perforated baffle. The design of each baffle is such that the flow of water through each perforated baffle is a laminar or smooth flow without any change in direction. By controlling incoming velocity and providing perforated baffles, water distribution within the vessel is increased as is volumetric utilization. The total volumetric use of the vessel is at least 50% and can be as great as 80%. | 03-28-2013 |
20130112626 | Self Contained Dissolved Air Flotation System - A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically. | 05-09-2013 |
20130134101 | Sparging Device for a Flotation Cell - A sparging device for a flotation cell may include a central gas tube with a central gas orifice which is adjoined by at least two connecting tubes each having a connecting gas orifice, the connecting tubes being aligned at a right angle ss to a longitudinal axis LZ of the central gas tube, the central gas orifice being connected to the connecting gas orifices, and each connecting tube being connected to at least one gas injection unit at its end remote from the central gas tube. A flotation cell with such a sparging device and a flotation method are also disclosed. | 05-30-2013 |
20130134102 | PROCESS AND APPARATUS FOR WATER PURIFICATION - A process for purifying water via freezing is disclosed. The process may include: contacting an aqueous mixture with a flotation medium, wherein the flotation medium has a density greater than or equal to the density of ice or hydrate and less than the density of the aqueous mixture or concentrated brine at its freezing point; reducing the temperature of the aqueous mixture to a temperature equal to or below the freezing point of the aqueous mixture to form ice or hydrate and a concentrate; phase separating the concentrate and the flotation medium; recovering the concentrate; and recovering the ice or hydrate and flotation medium as a slurry. Upon melting, phase separation of the resultant water from the flotation medium may provide a purified water product. | 05-30-2013 |
20130161263 | ENHANCED ADVANCED OXIDATION PROCEDURE - An advanced oxidation procedure for treating solution waste water, comprising: applying an ultrasound-Fenton reaction, wherein said ultrasound-Fenton reaction includes: providing oxidants and at least one catalyst selected from bivalent metal ions which include Ti, Fe, Mg, Mo, and Cu; subjecting the treated solution and said oxidants and catalyst to ultrasound cavitation generated by a generator device; forcing a flow of treated solution through said ultrasound device adapted to generate ultrasound waves for forming cavitation in said treated solution, said flow of treated solution passing through at least one flow-through tubular reactor chamber of the ultrasound device, and wherein said cavitation is effected by longitudinally linear distributed string of ultrasound transducers fixedly disposed and attached along a length of said at least one tubular reactor chamber, and wherein said cavitation is effected along a width dimension of said reactor chamber. | 06-27-2013 |
20130228523 | FLUID TREATMENT APPARATUS - An inlet device is provided for providing a mixture of a less dense liquid component and a more dense liquid component to a separator vessel. The inlet device comprises an annular chamber and an inlet which causes the mixture to swirl around the axis of the annular chamber. As a result, a vortex is caused in the separator vessel as the mixture enters it from the inlet device. This vortex is used to separate the more dense liquid component from the less dense liquid component, with the less dense liquid component being forced to the centre of the vortex where it is removed via an outlet which runs through the centre of the annular chamber. The inlet device also comprises a gas distributor for introducing gas bubbles into the mixture before it enters the separator vessel, thereby improving the separation of the more dense liquid component from the less dense liquid component. There is also provided a separator apparatus comprising the inlet device and the separator vessel and a method for separating a more dense liquid component from a less dense liquid component. | 09-05-2013 |
20130256234 | WATER TREATMENT SYSTEM FOR BUILDINGS - A system and process for treatment of sewage water from a building are disclosed. The system has a source of sewage water located inside or about a building, a sewage treatment apparatus to receive and treat sewage water from the sewage water source, and a storm drain connected to the sewage treatment apparatus—where the storm drain receives treated sewage water from the sewage treatment apparatus. The sewage treatment apparatus of the system has a sparger, an electrolytic cell, and an upper section. The sparger is below the upper section and above the electrolytic cell. The process includes receiving sewage water from a sewage water source, treating sewage water in the sewage treatment apparatus, and directing the treated sewage water to a storm drain. | 10-03-2013 |
20130284677 | Wastewater Hydrocarbon Extraction and Environmental Treatment Method and System - Method and system for extracting and recovering hydrocarbons from wastewater and treating the water to improve its condition. A series of specific unit operations result in the extraction of hydrocarbons, solids and contaminants and the treatment of water to a condition which is fit for re-use or environmentally sustainable discharge. Phase separation between the water and hydrocarbons is effected using flotation techniques followed by collection of the hydrocarbons using a movable collection surface. The aqueous phase is processed by multiple filtration steps. The result is significant extraction and recovery of hydrocarbons and conservation of water for re-use or discharge to the environment in a process which is continuous and scalable for large or small operations. | 10-31-2013 |
20130292340 | VESSEL AND METHOD FOR TREATING CONTAMINATED WATER - A method for removing immiscible fluid from contaminated water includes at least one chamber; an injection line in fluid communication with an inlet of the one chamber; bubble generation means in fluid communication with the injection line for injecting gas bubbles into the injection line and allowing mixing in the injection line of the gas bubbles and the contaminated water to form an inlet fluid; an inlet weir within the chamber adjacent the inlet; an immiscible fluid weir within the chamber; a trough for collecting the immiscible fluid and allowing the immiscible fluid to flow out of the at least one chamber through an immiscible fluid outlet; and a cleaned water outlet generally at the bottom of the chamber. | 11-07-2013 |
20130306568 | LIQUID FILTRATION SYSTEM WITH ENERGY RECOVERY DEVICES - A system and method of operating the same includes an absorption tank having a compressor communicating gas thereto, a suspended solid filtration tank having a primary inlet, a secondary inlet, a primary outlet and a secondary outlet and a pump comprising a pump inlet coupled to the secondary outlet and a pump outlet communicating fluid to the absorption tank. The absorption tank forms a solution from the fluid and gas. A turbine mechanically couples the pump with a common shaft extending to the pump. The turbine has a turbine inlet coupled to the absorption tank and a turbine outlet coupled to the secondary inlet. The turbine depressurizes the solution. The system may also use a centrifugal pump in place of a turbine and absorption tank. | 11-21-2013 |
20130319949 | FLOATED SOLIDS SEPARATION - A method and apparatus for removing solids separated from wastewater, or algae from algal solution, using an improved dissolved air flotation system that incorporates a slowly rotating cylindrical sieve at the end of an upward sloping beach to drain free water from the float, which has been pushed up the beach and onto the rotating sieve, and a doctor blade that removes the thickened float from the rotating sieve is disclosed. | 12-05-2013 |
20130327717 | FLUID CLARIFIER AND METHOD FOR CLARIFYING A FLUID - Liquid clarifier and method for clarifying liquid, comprising a liquid reactor which comprises an cylindrical tank having an upper vertical section and a lower tapered section, an inner cylinder extending along at least part of the upper section of the tank and an outlet for clarified liquid at the top of the tank, where the liquid clarifier further comprises a gas compressor adapted to inject compressed gas into the lower region of the cylinder and an inlet for an unclear liquid at the upper region of the cylinder, and at least one partition wall inside the cylinder, where the at least one partition wall create flow channels in the lower region of the inner chamber, where the compressed gas is adapted to be injected through gas inlets in flow channel/s in order to create an upward flow in the flow channel/s having gas inlets, which will create a downward flow in the flow channel/s without gas inlets, where the at least one partition wall extends out of the lower region of the cylinder. The advantage of the invention is that different kinds of liquids can be clarified in an efficient and fast way without the need of specific additives. | 12-12-2013 |
20140048490 | TREATING WASTEWATER BY ULTRAFILTRATION IN FLUOROPOLYMER RESIN MANUFACTURE - The invention provides for a process for treating wastewater containing fluoropolymer resin waste solids comprising:
| 02-20-2014 |
20140116953 | METHOD FOR OBTAINING METAL-CONTAINING VALUABLE SUBSTANCES FROM A SUSPENSION-LIKE MASS FLOW THAT CONTAINS METAL-CONTAINING VALUABLE SUBSTANCES - A method obtains metal-containing valuable substances from a suspension that contains metal-containing valuable substances. A corresponding suspension which is pressurized after passing through at least one pump device and which is mixed with a gas is fed to at least one jet device of at least one flotation cell via at least one feed line. The metal-containing valuable substances are separated in the at least one flotation cell. The suspension that contains the metal-containing valuable substances is charged with gas at least partially after passing through the pump device before entering the jet device. | 05-01-2014 |
20140124452 | METHODS FOR REMOVING MERCURY FROM WASTEWATER STREAMS - Methods for reducing mercury content from a mercury-laden aqueous stream comprise contacting the aqueous stream with a tannin coagulant, a sulfide, such as a polyorganic sulfide, and an optional cationic flocculent. The invention is particularly well suited to reduce mercury content in mercury-containing wastewater streams of the type generated during oil and natural gas production. | 05-08-2014 |
20140166585 | Flotation Separation Using Lightweight Synthetic Beads or Bubbles - Apparatus, such as a flotation separation device, features a flotation cell or column configured to receive a mixture of water, valuable material and unwanted material; receive polymer-based materials, including polymer bubbles or beads, configured to attach to the valuable material in the mixture; and provide enriched polymer-based materials, including enriched polymer bubbles or beads, having the valuable material attached thereon. | 06-19-2014 |
20140190896 | METHOD FOR TREATING INDUSTRIAL WASTE - Disclosed herein is a method for removing contaminants from an industrial fluid waste. The method comprises the steps of ozofractionating the industrial fluid waste, whereby contaminants are oxidised and a foam fractionate is formed; and separating at least a portion of the foam fractionate and any precipitate from the ozofractionated fluid. | 07-10-2014 |
20140326676 | INSTALLATION FOR WATER TREATMENT BY FLOTATION AND CORRESPONDING WATER TREATMENT METHOD - A system and process for treating water wherein water to be treated is directed to an inlet zone and from the inlet zone to a mixing zone. A flotation zone receives water from the mixing zone. A clarified water collection area is disposed adjacent the flotation zone for receiving clarified water from the flotation zone. There is provided one or more spray nozzles disposed in the mixing zone for injecting pressurized water into the mixing zone and generating air bubbles in the mixing zone such that the air bubbles are mixed with the water to be treated. A perforated plate separates the inlet zone and the mixing zone and includes an array of openings through which water to be treated passes as the water to be treated moves from the inlet zone to the mixing zone. The openings in the perforated plate give rise to a homogeneous mixture of the water to be treated and the air bubbles that result from the pressurized water being injected into the mixing zone by the one or more spray nozzles. Suspended matter and particulate in the water agglomerates around or with the air bubbles and the air bubbles carry the suspended matter and particulate to the surface of the water to be treated. Once the water and air bubbles reach the flotation zone, the air bubbles with the associated suspended matter and particulate can be removed from the surface of the water by a flotation process. | 11-06-2014 |
20150021272 | APPARATUS FOR PURIFYING WASTEWATER AND METHOD THEREOF - The present inventions relates to an apparatus for purifying wastewater and a method thereof, which comprises: a stirring part to make bubbles impregnated into floc through high speed stirring by adding floc forming materials to influent and stirring them; an air supply part to supply air to the stirring part to make more bubbles impregnated; a pumping part to conduct pressurized conveying of the floc included treatment water; a cyclone part to separate high density floc to downstream and treatment water with low density floc to upstream from the pressurized treatment water; and a flotation part to separate floc from the treatment water with floc supplied from the cyclone part. Therefore, the present invention have an effect that it is possible to improve purification speed of wastewater and obtain good quality of purified water. | 01-22-2015 |
20150041402 | METHOD AND SYSTEM FOR DE-OILING A FEED OF OIL AND WATER - A method and system for de-oiling a feed comprising oil and water. The feed has an input temperature above the boiling point of water and an input pressure sufficient to maintain the water in a liquid state. In at least one embodiment, the method comprises pumping the feed with a motive pump through a phase separator having a restriction to effect a phase separation of oil and water in the feed and produce an agitated mixture, supplying the agitated mixture from the phase separator into a pressure vessel operating at a pressure sufficient to maintain in a liquid state water that is at a temperature above the boiling point of water, removing an oil phase from the pressure vessel, and removing a water phase from the pressure vessel. | 02-12-2015 |
20150041403 | Pressurized Gas Lifting and Gas Rejuvenation - Devices, processes, systems, and articles of manufacture adapted to treat contaminated fluid, such as organic wastewater, are described. These are described to include lifting contaminated fluids, treating contaminated fluids, or both, through gas application. In certain designs, gas, such as pressurized air, may be used to lift contaminated fluids, such as organic wastewater (i.e., water having contaminating organics of some kind, e.g. residential septic wastewater). In certain designs, gas, such as pressurized air, may also be used to treat fluids interfacing with the gas. | 02-12-2015 |
20150076075 | COAGULATION/FLOCCULATION APPARATUS FOR THE TREATMENT OF A HYDRAULIC FLOW, AND IMPLEMENTATION PROCESS - Coagulation/flocculation apparatus for the treatment of a hydraulic flow of any type of liquid, upstream of a physical separation element, in particular upstream of a flotation unit, or of a filtration unit, in particular a membrane filtration unit, which apparatus comprises at least one coagulator with injection of coagulant, followed by a flocculator, which are successively passed through by the hydraulic flow, in which apparatus: the coagulator comprises a reactor ( | 03-19-2015 |
20150114910 | Apparatus and Method for Cleaning Water - The present invention relates an apparatus for cleaning water, in particular precleaning seawater, including at least one tank for receiving water containing at least one flocculating agent for separating organic and possibly biological constituents contained in the water. The at least one tank includes at least one contact zone K for contacting the water containing the flocculating agent with at least one gas, in particular air, and at least one separation zone S for separating the flocculated organic constituents buoyed up by the gas. At least one gassing unit is arranged in the at least one contact zone K and at least one filtration unit is arranged in the at least one separation zone S. The at least one gas is injected via the at least one gassing unit without using a liquid carrier. | 04-30-2015 |
20150136708 | DISSOLVED GAS FLOTATION APPARATUS - A dissolved gas flotation apparatus ( | 05-21-2015 |
20150291444 | RAPID FLOTATION DEVICE FOR WATER LADEN WITH SUSPENDED MATTER, AND METHOD FOR IMPLEMENTING SAME - The invention relates to a rapid flotation device, in particular using dissolved air, for treating water laden with suspended matter (MES). The device comprises a mixing area (B) separated from a flotation area (C) by a wall (n) above which the liquid to be treated passes from the mixing area. The bottom portion of the flotation area comprises: a perforated floor ( | 10-15-2015 |
20150291445 | DISSOLVED AIR FLOTATION DESLUDGING IN LIQUID TREATMENT - A method and apparatus of minimizing the loss of liquid in a dissolved air flotation desludging process, is disclosed. The method and apparatus creates an ambient airflow over the top of the dissolved air flotation tank directed towards a weir at one end of the dissolved air flotation tank whereby sludge floating on top of the liquid is accelerated over the weir at a higher rate than the liquid, thereby conserving the amount of liquid lost over the weir. | 10-15-2015 |
20150336112 | LOW ENERGY MICROBUBBLE GENERATION SYSTEM AND APPARATUS - A bubble generation system includes a gaseous pressure source supplying a gas flow and a wave inducer including a first inlet in fluid communication with the gaseous pressure source to receive the gas flow and a first outlet. The wave inducer transitions the gas flow into a pulsating acoustic wave that exits the wave inducer through the outlet. The bubble generation system also includes a diffuser fluidly coupled to the outlet of the wave inducer. The diffuser is configured to produce bubbles from the gaseous pressure source. The bubble generation system further includes a vent passageway fluidly coupled between the wave inducer and the diffuser. The vent passageway is configured to be in fluid communication with an ambient environment. | 11-26-2015 |
20160009569 | Cleaning of Oleaginous Water III | 01-14-2016 |
20160009571 | MICRO-BUBBLE INDUCED GAS FLOTATION CELL AND METHOD OF OPERATING SAME | 01-14-2016 |
20160016816 | SYSTEM AND METHOD FOR TREATING WATER OR WASTEWATER - The present invention relates to a treatment system, apparatus, assembly, facility, cycle and/or method for the treatment of water or wastewater, in particular, a system, apparatus, assembly, facility, cycle and/or method for treating water or wastewater received at high flowrates (including in excess of approximately 200 L/min) through a series of two or more dissolved air flotation chambers. | 01-21-2016 |
20160039684 | Water Treating Equipment Providing Coalescence And Flotation Within A Single Vessel - A vessel for treating an oil-in-water inlet stream houses an inlet flow distributor arranged to direct an inlet flow toward a perforated baffle of a coalescing section, the coalescing section housing a packing and being arranged upstream of a second baffle; a flotation section arranged to receive a flow exiting the coalescing section and being divided by one or more perforated baffles; and an outlet water collecting pipe arranged to receive a flow exiting the flotation section, the outlet water collecting pipe having one or more openings located along its length. The coalescing section may be divided into two sections, with one section preferably housing a different pre-selected sized packing than the other section. The flotation section may include one or more gas-inducing devices. A solid baffle may be arranged downstream of the second baffle and ahead of the flotation section to provide single or dual flow through that section. | 02-11-2016 |
20160159665 | SYSTEM FOR TREATING WASTE WATER CONTAINING AT LEAST ONE COSMETIC PRODUCT, AND RELATED ARRANGEMENT AND METHOD - This system ( | 06-09-2016 |
20160185620 | VESSEL AND METHOD FOR TREATING CONTAMINATED WATER - A method for removing immiscible fluid from contaminated water includes at least one chamber; an injection line in fluid communication with an inlet of the one chamber; bubble generation means in fluid communication with the injection line for injecting gas bubbles into the injection line and allowing mixing in the injection line of the gas bubbles and the contaminated water to form an inlet fluid; an inlet weir within the chamber adjacent the inlet; an immiscible fluid weir within the chamber; a trough for collecting the immiscible fluid and allowing the immiscible fluid to flow out of the at least one chamber through an immiscible fluid outlet; and a cleaned water outlet generally at the bottom of the chamber. | 06-30-2016 |