Patent application number | Description | Published |
20080314830 | Method of Removing Phosphorus from Wastewater - A process for removing phosphorus from wastewater wherein an iron or aluminum salt is added to the wastewater. The iron or aluminum salt results in the precipitation of certain iron or aluminum species that include phosphorus adsorption sites. These iron or phosphorus species are settled and become a part of sludge produced in the course of the wastewater treatment process. By recycling substantial portions of the sludge, the concentration of these iron or aluminum species in the wastewater is increased. This increased concentration results in the presence of large quantities of unused phosphorus adsorption sites that attract and adsorb phosphorus, resulting in phosphorus being removed from the wastewater. | 12-25-2008 |
20110036772 | Method of Removing Phosphorus from Wastewater - A process for removing phosphorus from wastewater wherein an iron or aluminum salt is added to the wastewater. The iron or aluminum salt results in the precipitation of certain iron or aluminum species that include phosphorus adsorption sites. These iron or phosphorus species are settled and become a part of sludge produced in the course of the wastewater treatment process. By recycling substantial portions of the sludge, the concentration of these iron or aluminum species in the wastewater is increased. This increased concentration results in the presence of large quantities of unused phosphorus adsorption sites that attract and adsorb phosphorus, resulting in phosphorus being removed from the wastewater. | 02-17-2011 |
20110147304 | Biological and Ballasetd Flocculation Treatment of Wastewater - A method for treating wastewater comprises biologically treating the wastewater in a fixed-biomass biological reactor and then treating the wastewater in a ballasted flocculation system. The ballasted flocculation system produces a clarified effluent and sludge containing inert granular material having biomass accumulated thereon and suspended solids. The inert granular material having biomass accumulated thereon is separated from the suspended solids and then cleaned with a cleaning solution. After separating the biomass from the cleaned inert granular material, the cleaned inert granular material is recycled for use in the ballasted flocculation system. | 06-23-2011 |
20120160770 | Process for Reducing the Sulfate Concentration in a Wastewater Stream - A method of reducing a sulfate concentration in wastewater comprises directing the wastewater stream to a precipitation reactor and mixing the wastewater stream with a calcium source and a calcium salt seed material to precipitate calcium sulfate. The precipitated calcium sulfate is then separated from a treated effluent and directed to a settling tank where the precipitated calcium sulfate is separated into heavier calcium sulfate precipitants and lighter calcium sulfate precipitants. The heavier calcium sulfate precipitants and the lighter calcium sulfate precipitants are separately recirculated to the precipitation reactor. A predetermined mass ratio of solids is maintained in the precipitation reactor. | 06-28-2012 |
20120312746 | PROCESS FOR REDUCING PERCHLORATE IN WATER - A method or process for removing perchlorate ions from water includes mixing water containing perchlorate ions with a reducing agent such that the perchlorate ions and the reducing agent undergo an oxidation-reduction reaction. During the oxidation-reduction reaction, perchlorate ions are reduced to chloride ions and the reducing agent is oxidized. The oxidized reducing agent is separated from the water containing chloride ions and the oxidized reducing agent is regenerated and reused in the reduction of the perchlorate ions. | 12-13-2012 |
20130248455 | Method for Removing Calcium, Barium, Magnesium and Strontium From Frac Flowback - A method of removing barium, calcium, strontium, and magnesium from frac flowback. A sulfate reagent and carbonate reagent are mixed with the frac flowback, causing barium, calcium, strontium, and magnesium to precipitate. The precipitants are crystallized and the resulting frac flowback and crystals are separated into relatively heavy solids and a stream of relatively light solids. The stream of relatively light solids is subjected to a further separation process that produces sludge that is recycled to aid in the crystallization process and a treated effluent which is recycled to the fracking operation or collected and used in another fracking operation. | 09-26-2013 |
20130313201 | High Rate Chemical Softening Process - A ballasted flocculation system that chemically softens water and causes hardness particles to precipitate from the water and crystallize. In the course of crystallizing, the hardness particles grow and form ballasted floc that are separated from the water in the form of sludge by a clarification unit, producing a clarified effluent. The separated sludge including the hardness crystals is directed to a separator where the sludge is separated into two streams with each stream having hardness crystals contained therein. In one process design, one stream includes relatively small hardness crystals and the other stream includes relatively large hardness crystals. The stream having the relatively small hardness crystals is directed to a first reactor and mixed with the incoming water and a softening reagent. The stream having the relatively large crystals is directed to a second downstream reactor and mixed with water and a flocculant which facilitates the growth of the hardness crystals. | 11-28-2013 |
20140144843 | Process for Reducing the Sulfate Concentration in a Wastewater Stream by Employing Regenerated Gibbsite - A method for removing sulfate from a wastewater stream includes mixing gibbsite and a calcium source to precipitate Ettringite from the wastewater stream and produce an effluent with a reduced sulfate concentration. The gibbsite in the precipitated Ettringite is regenerated by mixing an acid with the Ettringite and precipitating gibbsite particles, after which the gibbsite particles are subjected to a crystallization process to increase the size of the gibbsite particles which are recycled back to the main stream. | 05-29-2014 |
Patent application number | Description | Published |
20090308883 | CONTAINER WITH LID - A container with lid, in particular a bucket with lid, has a container wall, a container bottom and a container opening, which is defined by an upper edge of the container, and structure in the upper part of the container for fixing the lid or a peripheral, inwardly protruding frame, to which the lid can be detachably locked. The container wall has on its upper part an outwardly protruding shoulder, such that containers can be stacked one into the other. To provide a container with lid which can be easily manufactured at low cost, if possible also by an in-mold labeling process, at least one radially outwardly and/or axially projecting protrusion ( | 12-17-2009 |
20100147851 | LID AND CONTAINER - The invention relates to a lid for a container, and a container with a corresponding lid, where the radially outer edge area ( | 06-17-2010 |
20100243654 | CONTAINER WITH A COVER INDICATING PREVIOUS OPENING - The invention relates to a container, especially a bucket or similar, comprising an opening, which is orientated upwards and which can be closed by a cover, and a peripheral container edge, which is drawn outwards in a downward direction on the container wall, where the cover is detachably connected thereto and whereon at least one tongue-like element is connected in such a way that at least one part of the cover is raised due to a pivoting movement away from a starting position on the container wall. According to the invention, the tongue-like element engages with the container edge from behind with part of the tongue-like element which can be guided outwards by the pivoting movement to a position in front of the container wall and the part of the tongue-like element is prevented from being guided behind the container edge when the tongue-like element pivots back in the direction of the initial position. | 09-30-2010 |
Patent application number | Description | Published |
20100175082 | SYSTEM AND METHOD FOR INSERTING SPONSOR INFORMATION INTO CLOSED CAPTION CONTENT OF A VIDEO SIGNAL - Disclosed is a system and method of combining traditional programming caption data with advertising caption data in a single closed caption data stream. Advertising caption data is received from a data warehouse. When such advertising caption data is encoded into the closed caption data stream, it must temporally displace the traditional programming caption data that would otherwise be displayed. Thus, such programming caption data is buffered during display of the advertising caption data, and then is played out in an intelligent yet accelerated manner to maintain readability and recover the time lost during the sponsorship event. | 07-08-2010 |
20100194979 | MULTI-LINGUAL TRANSMISSION AND DELAY OF CLOSED CAPTION CONTENT THROUGH A DELIVERY SYSTEM - Disclosed is a system and method of blending multiple closed caption language streams into a single output for transmission using closed caption encoding devices. Closed caption signals are created by remote closed caption generating systems that are connected to an input device, such as a stenography keyboard or voice recognition system. The closed caption signals are generated at multiple remote closed caption generating systems and in different languages, and are then independently transmitted to a multiplexing system where they are properly identified and blended into a single output data stream. The single output data stream is then delivered to a closed caption encoding device via a connection such as an Ethernet or serial connection. | 08-05-2010 |
20110173655 | AUTOMATED SYSTEM AND METHOD FOR GRAPHIC ADVERTISEMENT SELECTION AND OVERLAY - Disclosed is a computer implemented system and method for the automated selection and overlay of graphical advertisements into a video signal. A broadcaster is prompted to confirm an automated selection of suitable graphical advertisements having demographic profiles that match to some extent the demographics of the broadcaster's intended audience. An advertising server receives the broadcaster's confirmation of graphical advertisements that may be overlaid on the broadcaster's intended video program, and forwards those selected graphical advertisements to a video processor, which in turn overlays one or more of the selected graphical advertisements in authorized insertion windows in the broadcaster's video program and forwards the combined video signal/overlaid graphical advertisement through traditional program distribution channels (e.g., cable television, satellite television, and the like). | 07-14-2011 |