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| Number | Title | Issue Date |
| 7931806 | Wastewater treatment method and apparatus, biosolids-based food additive, and business application The present invention is directed to processes and business methods and wastewater treatment units for converting the waterborne residuals from wastewater generated by food processing plants into an ingredient suitable for use in animal feeds. The ingredient produce... | 04/26/2011 |
| 7892431 | Method and device for purification of effluent The invention relates to a method for the purification of effluent, in particular, effluent from the paper industry, comprising the following method steps: a) aerobic purification of the effluent using activated sludge in an activated sludge tank (1), b) sett... | 02/22/2011 |
| 7713416 | Process for transforming sludge into NPK type granulated fertilizer A process for transforming sludge into NPK type granulated fertilizer in which the energy consume is reduced a 90% thanks to the addition of a special filtration step in which the water content is reduced a 50% and the remaining water is evaporated by the exothermic... | 05/11/2010 |
| 7674380 | Apparatus for treating sewage using a semi-batch process and associated method An apparatus for treating sewage using a semi-batch process is provided. The apparatus may include an aeration tank, a thickening tank, a dephosphorization tank, and first and second reactor basins. The first and second reactor basins may each include an opening por... | 03/09/2010 |
| 7604744 | System and method for processing organic waste material A method is provided for maintaining a biomass disposed on a substrate in a bioreactor tank. The bioreactor tank has an inlet and an outlet in fluid communication with a waste treatment system whereby an influent fluid may be selectively introduced through the inlet... | 10/20/2009 |
| 7563372 | Package dewatering wastewater treatment method A sewage treatment plant and method employing rapid sludge chemical dewatering technology in conjunction with slower conventional mechanical dewatering solids agglomeration and disposal methods to meet environmental permitting restrictions and siting limitations for... | 07/21/2009 |
| 7553419 | Method of material processing to produce a fiber product A material processing method produces a fiber product by anaerobic digesting of input material such as dairy flush to produce a gas product and a liquid and solid fiber product, by thereafter separating liquid components and solid fiber components of the liquid and ... | 06/30/2009 |
| 7537699 | Methods for reducing biosolids odors A method for reducing the odors of an anaerobically digested dewatered biosolids or other biosolids or sludge may include separating first anaerobically digested dewatered biosolids into first and second portions, storing second anaerobically digested dewatered bios... | 05/26/2009 |
| 7429329 | Hybrid chemical/mechanical dewatering method for sewage treatment plants A hybrid chemical/mechanical dewatering sewage treatment plant and method employing rapid sludge chemical dewatering technology in conjunction with slower conventional mechanical dewatering solids agglomeration and disposal methods to meet operating constraints and ... | 09/30/2008 |
| 7422687 | Biotreatment of As-containing hydroxide sludge The invention discloses a biotechnological process for the treatment of hydroxide sludge containing As produced in potable water production processes which use FeCI3 as a coagulant. The process seeks to modify the physicochemical properties of the produce... | 09/09/2008 |
| 7410583 | Process of treating organic waste for anaerobic digestion A process of treating organic waste such as food wastes for anaerobic digestion including preparing a waste-slurry from organic waste such as food wastes, transferring the organic waste-slurry to a paddle pulper/finisher, processing the waste-slurry in the paddle pu... | 08/12/2008 |
| 7387727 | Contaminated liquid filtration system vehicle An object of the present invention is to provide a vehicle which is capable of recycling contaminated liquid in a factory or the like swiftly and efficiently without performing incineration. In order to achieve this object, a contaminated liquid filtration system ve... | 06/17/2008 |
| 7375173 | Ecofriendly cationic polyelectrolytes The invention relates to cationic water-soluble polyelectrolytes, especially terpolymers, which are obtained by polymerising monomers of (meth)acrylamide, a quaternised (meth)acrylamide derivative, a (meth)acrylic acid derivative and/or hydrolysis-stable cationic mo... | 05/20/2008 |
| 7347648 | Landfills and methods of operating a landfill Landfills and their methods of operation are disclosed. Through the controlled introduction of septage into solid municipal waste, refuse decomposes faster to achieve additional landfill space. A business method of operating the landfill is also disclosed. ... | 03/25/2008 |
| 7344648 | Use of silicones for causing or facilitating the flow of dispersions of solid particulates in liquids A method for causing or facilitating the flow of dispersions of solid particulates in liquids, having characteristics of high viscosity or resistance to flow, with particular reference to sludges from purification plants of civil or industrial wastes, which method c... | 03/18/2008 |
| 7332084 | Process for biological treatment of organic wastewater and apparatus therefor A multistage activated sludge process involving a predation effect caused by microorganisms realizes further improvement in treatment efficiency and further decrease in the amount of excess sludge generated while a stable quality of the treated water is maintained. ... | 02/19/2008 |
| 7320759 | Sludge treatment method A sludge treatment method allowing an improvement in a phosphorus recovery rate and sludge volume reduction by efficiently eluting phosphorus in the sludge. The sludge treatment method includes: a step of foaming a sludge-containing liquid by blowing an ozone-contai... | 01/22/2008 |
| 7318895 | Biodestruction of blended residual oxidants The present invention may be used for treatment of waste streams using domestic wastewater. A concentrate waste stream containing one or more of perchlorate, nitrate, bromate, selenate and chromate may be combined with a domestic wastewater stream. The concentrate w... | 01/15/2008 |
| 7318894 | Method and system for treating wastewater A method and system is disclosed for treating wastewater that utilizes membrane processes, preferably in combination with anaerobic biological treatment, to provide for economical and environmentally superior treatment without high production of biological solids. T... | 01/15/2008 |
| 7311833 | Zero excess sludge membrane bioreactor An inclined plate coupled membrane bioreactor for treating feed water having excessive level of nutrients in particular chemical oxygen demand and total nitrogen and suspended solids has an aerobic bioreactor for nitrification and aerobic biodegradation in which mem... | 12/25/2007 |
| 7309432 | System and method for eliminating sludge via ozonation A system and method for the treatment and reduction of sludge via ozonation in a wastewater treatment process is disclosed. The sludge treatment system comprises: a sludge ozonation reactor coupled to an activated sludge treatment basin and adapted to receive a liqu... | 12/18/2007 |
| 7300585 | Method of treatment of effluent stream A method for treating an effluent stream containing material which it is desired to remove from the effluent stream comprises treating the effluent stream with a solution of an acid and a first polymer to reduce the pH of the thus-treated stream to a range of about ... | 11/27/2007 |
| 7294269 | Organic disposer and method of controlling the same An organic matter disposer is disclosed, including a tub, a drum rotatably provided in the tub so as to store organic matters therein, a stirrer provided in the drum so as to stir the organic matters, a driving device for rotating the drum and the stirrer, and a hea... | 11/13/2007 |
| 7288191 | Sludge treatment apparatus A sludge treatment method allowing an improvement in a phosphorus recovery rate and sludge volume reduction by efficiently eluting phosphorus in the sludge. The sludge treatment method includes: a step of foaming a sludge-containing liquid by blowing an ozone-contai... | 10/30/2007 |
| 7276155 | Waste treatment apparatus with integral membrane apparatus A wastewater treatment method and apparatus including a denitrification (anoxic) chamber for denitrifying wastewater, an aeration basin with Bio-Wheel for aerating the wastewater, and a membrane device in which sludge particles are separated out of the wastewater, l... | 10/02/2007 |
| 7220381 | Method for high pressure treatment of substances under controlled temperature conditions A product carrier for use in pressure processing substances is substantially fluidically closed, and is insulated, to prevent heat transfer from the product being treated to the cooler wall of the pressure vessel. The insulating material has compression heating prop... | 05/22/2007 |
| 7201225 | Conserving components of fluids A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device is powered by a Die... | 04/10/2007 |
| 7182859 | Apparatus for treating organic waste An apparatus for treating organic waste. The apparatus includes a tank having an interior chamber. A weir having a lower opening is disposed in the tank and this weir divides the tank into an inlet chamber and an outlet chamber. The inlet chamber receives organic wa... | 02/27/2007 |
| 7175683 | Process for transforming sludge into NPK type granulated fertilizer A process for transforming sludge into npk type granulated fertilizer in which the energy consume is reduced a 90% thanks to the addition of a special filtration step in which the water content is reduced a 50% and the remaining water is evaporated by the exothermic... | 02/13/2007 |
| 7175764 | Method and device for purifying wastewaters The invention relates to a method for purifying wastewaters, particularly wastewaters produced in the paper industry, involving the following steps: a) aerobic clarification of the wastewater using activated sludge in an activation stage; b) carrying out, in a secon... | 02/13/2007 |
| 7172687 | Wastewater treatment system A water treatment system for treating water. The water treatment system includes a primary water treatment station and a solid-based sulfurous generator downstream from the primary water treatment station for producing aqueous sulfurous acid for further treatment of... | 02/06/2007 |
| 7166220 | Systems and methods for organic wastewater treatment A system and method for organic wastewater treatment through denitrification and nitrification processes. The system for treating organic wastewater includes a multistage treatment tank having at least two stages in series. Each stage has a denitrification tank and ... | 01/23/2007 |
| 7163632 | System and method for oxygenation for wastewater treatment A fluid treatment system and method for dissolving a gas into a fluid and subsequently allowing microbial or chemical reactions with the fluid mixture to decontaminate the fluid. The system comprises a pressurized gas transfer reactor, a depressurization device, a m... | 01/16/2007 |
| 7160713 | Method and apparatus for oxidizing organic matter Method and apparatus for biologically oxidizing organic matter. Finely powdered organic matter is suplied into the top end of an upright, high reaction vessel (1). The vessel (1) has been filled up substantially completely by small balls, on the surfac... | 01/09/2007 |
| 7157000 | Catalytic bioconversion of petroleum-contaminated wastes/wastewaters using kenaf core powder A Catalytic Bioconversion (CB) process using kenaf core powder is used to promote an environmentally friendly method to biologically treat the petroleum contaminants in these wastes and waste waters while simultaneously producing a high energy solid fuel. The new pr... | 01/02/2007 |
| 7156998 | Phased activated sludge system The inventions describe a phased activated sludge treatment system that incorporates elements of batch treatment technology into a flow-through treatment process. Control of mixing and aeration systems are independent to facilitate the operation of the main reactor ... | 01/02/2007 |
| 7153430 | Biological digestion of waste fluids with particles comminuting step The present invention relates to a method for the aerobic digestion of a fluid waste material, notably an aqueous sewage, in which at least part of the waste material and/or of the digestion mixture is comminuted to reduce the median particle size of biomass and oth... | 12/26/2006 |
| 7147778 | Method and system for nitrifying and denitrifying wastewater A wastewater treatment system is provided that includes first and second reactors, each operative to nitrify or denitrify wastewater contained therein. Downstream from the first and second reactors is a membrane reactor that operates under aerobic conditions and inc... | 12/12/2006 |
| 7144507 | Dry cycle anaerobic digester The present invention provides a digester for handling waste or contaminated materials. A process and an apparatus for processing are disclosed. A Dry Cycle Anaerobic Digester (DCAD) uses tanks to perform aerobic and anaerobic digestion to eliminate the waste, while... | 12/05/2006 |
| 7141169 | Method and apparatus for biosustaining waste activated vermicular environment A system for processing sewage into vermicompost includes a holding tank for receiving and initially processing the sewage. A treatment tank, connected to the holding tank by a first pipe, is used for treating the initially processed sewage from the holding tank to ... | 11/28/2006 |
