| Degremont Patent applications |
| Patent application number | Title | Published |
|---|
| 20120111806 | PULSED SLUDGE BED SETTLING METHOD AND DEVICE - The invention relates to a pulsed sludge bed settling method for treating all types of liquid, in particular water, and which uses at least one powder or grain reactant, according to which: the liquid and the reactant(s) for the treatment are contained in a tank ( | 05-10-2012 |
| 20120006414 | METHOD FOR CONTROLLING OXYGEN SUPPLY FOR TREATING WASTEWATER, AND FACILITY FOR IMPLMENTING SAME - The invention relates to a method for controlling oxygen supply in a tank ( | 01-12-2012 |
| 20110290723 | METHOD AND PLANT FOR MANAGING THE CLOGGING OF MEMBRANE MODULES AND FILTRATION MEMBRANES - The invention relates to a method for managing the plugging of membrane modules and of filtration membranes, in particular for nanofiltration, ultrafiltration or reverse osmosis for desalinating water, which comprises carrying out consecutive rinsing operations for controlling clogging, in particular biological clogging: evaluating the thickness of the biofilm; starting a rinsing operation at the latest when the evaluated thickness of the biofilm exceeds a first predetermined setpoint value for the biofilm thickness and stopping the rinsing operation not before the biofilm thickness has become lower than a second predetermined setpoint value lower than the first one for the biofilm thickness. | 12-01-2011 |
| 20110272346 | QUICK STATIC DECANTER FOR PRETHICKENING WATER TREATMENT SLUDGE, AND PLANT INCLUDING SUCH A DECANTER - The invention relates to a static decanter (D) for prethickening liquid sludge in a water treatment plant, in particular wastewater, comprising an inclined bottom ( | 11-10-2011 |
| 20110186512 | PROCESS FOR DISINFECTING A FILTRATION WORKS FOR PRETREATMENT OF SALTWATER, AND INSTALLATION FOR THE IMPLEMENTATION THEREOF - Method for disinfecting a filtration works (F) for the pretreatment of salt water, particularly seawater, upstream of a water desalination unit ( | 08-04-2011 |
| 20110100904 | METHOD AND UNIT FOR THE PURIFICATION OF WASTEWATER WITH AEROBIC GRANULAR SLUDGE - The invention relates to a biological wastewater purification method using a reactor including a first compartment ( | 05-05-2011 |
| 20110017647 | INSTALLATION FOR THE TREATMENT OF WASTEWATERS AND BIOLOGICAL DISC FOR SUCH AN INSTALLATION - Installation for the treatment of municipal and/or industrial wastewaters comprising a basin that receives the water to be treated and a series of discs ( | 01-27-2011 |
| 20100303695 | METHOD AND PLANT FOR THE TREATMENT OF EFFLUENTS CONTAINING NITROGEN IN A SEQUENCING BATCH REACTOR - Method for the treatment of effluents containing nitrogen in the form of ammonium, according to which: a volume of effluent to be treated in a complete cycle is introduced into the batch reactor in successive volume fractions, each volume fraction being treated during a subcycle: each subcycle comprises a phase of feeding with a volume fraction and, in an alternating manner, two treatment stages, i.e. an aerated first stage, during which complete or partial oxidation of the ammonium so as to give nitrites takes place, followed by a nonaerated second stage, during which the nitrites produced and the ammonium are converted to nitrogen gas. During the aerated first stage, the dissolved oxygen concentration in the batch reactor is maintained between 0.1 mgO | 12-02-2010 |
| 20100288693 | SEQUENTIAL BIOLOGICAL REACTOR HAVING A SELECTOR FOR THE TREATMENT OF MUNICIPAL OR INDUSTRIAL WASTEWATERS - Sequential biological reactor (R), comprising: a tank ( | 11-18-2010 |
| 20100282679 | ADVANCED CONTROL METHOD FOR A MEMBRANE FILTRATION UNIT, AND DEVICE FOR IMPLEMENTING THE METHOD - Advanced control method for a membrane filtration unit, applied to the treatment of an effluent, employing microcoagulation on a membrane, which consists in injecting, upstream of the membrane, a dose of coagulation reactant(s) 30 to 80 times below the dose (X) making the zeta potential of the effluent zero, in which method: quantities defining the quality of the effluent to be treated and quantities defining the state of membrane clogging are measured as input variables; the operating point of the microcoagulation process is located on the basis of the results of the above measurements; thresholds for the input variables are determined, the microcoagulation having to be initiated when said thresholds are violated; and the coagulation reactant(s) is(are) injected depending on the results of the measurements and on the comparison of the input variables with the respective thresholds. | 11-11-2010 |
| 20100200496 | METHOD AND INSTALLATION FOR BIOLOGICALLY TREATING WASTE WATER - The invention relates to a method for biologically treating waste water, using a set of micro-organisms having different metabolic spectra, in order to eliminate carbon and nitrogen, even phosphorus. Some of the micro-organisms are fixed to mobile solid carriers ( | 08-12-2010 |
| 20100126694 | SILO FOR STORING BULK PRODUCTS, IN PARTICULAR DRIED SLUDGE FROM WATER TREATMENT PLANTS - The invention relates to a silo for storing dried bulk products containing organic materials, in particular for storing dried sludge from residual water treatment plants, said products being subject to self-heating phenomena, wherein said silo includes an outer shell ( | 05-27-2010 |
| 20100038314 | METHOD FOR THE FLOATATION-CLARIFICATION OF DIFFICULT WATER AND FACILITY FOR IMPLEMENTING SAME - The invention relates to a method for the floatation-clarification of difficult water, in particular heavily polluted surface water, urban or industrial wastewater, rainwater or any type of water that floats with difficulty, particularly water which contains a high percentage of mineral matter or requires the injection of a flocculation aid and which originates from filters or membrane technologies such as ultrafiltration, said method comprising: a coagulation step (A | 02-18-2010 |
| 20100032373 | METHOD FOR THE OPTIMISED MANAGEMENT OF A MEMBRANE FILTRATION UNIT AND EQUIPMENT FOR REALISING THE SAME - The invention relates to a method for the optimised management of a membrane filtration unit based on membrane micro-coagulation, that comprises at least one measurement of the effluent temperature ( | 02-11-2010 |
| 20100018932 | METHOD AND INSTALLATION FOR BRINGING OZONE INTO CONTACT WITH A FLOW OF LIQUID, IN PARTICULAR A FLOW OF DRINKING WATER OR WASTEWATER - Method for bringing ozone into contact with a flow of liquid in which a fraction of the liquid flow is tapped off, a carrier gas laden with ozone is injected into the tapped-off flow, forming gas bubbles, the gas bubbles and the liquid are mixed so as to form a two-phase tapped-off flow, and the tapped-off flow is reintroduced into a descending vertical stream of the main liquid flow, this vertical stream undergoing, at the bottom, a change of direction to essentially the horizontal, the reintroduction of the tapped-off flow being carried out at the lower end of an injection tube immersed in the descending vertical stream of the main flow. The descending vertical stream ( | 01-28-2010 |
| 20090218293 | PRESSURISED WATER RELEASING NOZZLE FOR GENERATING MICROBUBBLES IN A FLOTATION PLANT - The inventive nozzle comprises a first releasing stage ( | 09-03-2009 |
| 20090211974 | WATER CLARIFYING APPARATUS AND IMPLEMENTING METHOD - The invention concerns a water clarifying device comprising a flotation zone (c), a membrane-based filtering zone (e) and extracting means (d), the flotation zone (c) and the membrane-based filtering zone (e) having a common partition wall (P), the common partition wall (P) including in its lower part an opening (o) directly allowing through flotated water towards the filtering zone (e), thereby feeding the membranes with flotated water from down upwards both in filtering phase and in backwashing phase. | 08-27-2009 |
| 20090194487 | METHOD AND INSTALLATION FOR PACKAGING MUDS BEFORE DRYING - Method for packaging liquid muds resulting from the treatment of urban and/or industrial waste water according to which the mud is subjected to a mechanical dehydration step followed by a thermal drying step. Ferric chloride and/or quicklime or slaked lime is injected into the mud after the dehydration step and before the drying step or at the beginning of the drying step. | 08-06-2009 |
| 20090126415 | HEATER APPARATUS FOR WASHING MACHINE - A heater apparatus of a washing machine is presented. The presented heater apparatus of a washing machine is comprising; a tub ( | 05-21-2009 |
| 20090114592 | METHOD FOR PURIFYING WASTE WATER WITH ADDED OXIDIZING AGENT - The invention concerns a method for purifying wastewater loaded with organic matter, said method including: a step of contacting wastewater with a biological culture containing a purifying biomass and a step of separating performed by filtration through organic or inorganic membranes. The invention is characterized in that at least part of the biological culture is subjected to an oxidative stress step enabling a liquor to be obtained by the action of at least one oxidizing agent used in small amount so as to preserve the biological activity of the purifying biomass while modifying the microbial floc to make it denser. | 05-07-2009 |
| 20080223784 | Method and Arrangement for Processing Nitrogen-Concentrated Effluents in a Sequential Fractionated Cycle Biological Reactor - The invention relates to a method for processing nitrogen-concentrated effluents by ammonia oxidation into nitrites followed by nitrite denitritation in a gaseous nitrogen in a sequential biological reactor ( | 09-18-2008 |
| 20080210642 | Method For Treating Water, In Particular Drinking Water, And Water Treatment Plant - The invention concerns a water treatment method including a step of clarification, followed by an ozonization step and at least one filtration step, wherein after the clarification step ( | 09-04-2008 |
