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| Number | Title | Issue Date |
| 7695624 | Method and system for treating water and utilizing a membrane filtering system A method and system is provided for treating wastewater. In one process, wastewater is directed into a treatment tank and biologically treated. The biologically treated wastewater is directed as mixed liquor from the treatment tank to a bottom portion of a downstrea... | 04/13/2010 |
| 7442307 | Method and apparatus for the biological activated sludge treatment of wastewater The equipment has a main reaction (I) and an anterior reactor (II), as well as facilities for feeding in untreated sewage, removing cleaned water and sludge and aerating the wastewater entered into the main reactor, and a mixer (2) situated in the anterior re... | 10/28/2008 |
| 7422688 | Biological wastewater treatment process and reactor An aerated treatment of water is performed using a serially coupled reactor and flotation tank and is performed using so much activated sludge in the water that small bubbles from an aerator are entrained in the activated sludge, leading some of or all the activated... | 09/09/2008 |
| 7419595 | Multiple barrier biological treatment process The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating the locations where each process takes place. The separation may be a... | 09/02/2008 |
| 7413656 | Aerobic sewage system An aerobic system provided to treat sewage generated by a modern larger home which does not have access to a municipal sewage connection The features of this system are adaptable to upgrade and/or replace existing systems. In a preferred embodiment the system uses t... | 08/19/2008 |
| 7402247 | System for wastewater treatment and digestion having aerobic and anaerobic treatment zones The specification discloses a method for treating and digesting organic wastes in a wastewater stream. A first wastewater influent stream is mixed with an activated sludge biomass in an aerobic digestion zone, so that least a portion of the organic wastes in the fir... | 07/22/2008 |
| 7378021 | Tidal vertical flow wastewater treatment system and method A wastewater treatment system includes a tidal, sequential vertical flow marsh cell system having at least three marsh cells in serial forward fluid communication. Incoming wastewater to be treated is channeled to at least the first and a second marsh cell, and a po... | 05/27/2008 |
| 7361283 | Extraction and treatment of heavy metals Contaminated waste streams or soil or sludge is subjected to a first treatment stage with an acid liquor at a pH below 2 and at a solids content from 5 to 30%; then the liquid and solid phases from the first treatment stage are separated; the solids from the first t... | 04/22/2008 |
| 7347940 | Nitrogen removal system and method for wastewater treatment lagoons A wastewater treatment process integrates a tidal nitration system with a wastewater treatment lagoon. Raw effluent enters a lagoon having a persistent anoxic or anaerobic state and a long residence time to permit suspended solids to settle to the bottom, forming a ... | 03/25/2008 |
| 7323107 | Apparatus and method for the treatment of waste A waste treatment system suitable for domestic use and capable of producing water suitable for recycling within the household. The system includes a bioreactor (30) and a decomposition chamber (16). The bioreactor (30) is adapted to digest liqui... | 01/29/2008 |
| 7323108 | Combined biological and ballasted flocculation process for treating wastewater A wastewater treatment process is provided that entails both a biological or activated sludge process and a ballasted flocculation process. A first stream of wastewater is directed to a biological system for biologically treating the wastewater. The biological treat... | 01/29/2008 |
| 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 |
| 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 |
| 7309435 | Biological process for waste treatment and energy production Processes for the treatment of organic waste are disclosed comprising digesting organic waste under anaerobic conditions so as to convert at least a portion of the organic waste and produce a clear decant and a mixture of biomass and unconverted organic compounds, r... | 12/18/2007 |
| 7303908 | Bioremediation assembly A bioremediation assembly and method for bioremediation are described and which includes a bioremediation reservoir defining a cavity; a pump mounted within the bioremediation reservoir and which removes the aqueous bioremediating fluid from the bioremediation reser... | 12/04/2007 |
| 7288574 | Two-phase oxygenated solution and method of use A two-phase mixture is provided having a dissolved gas and a suspension of bubbles in a liquid. Methods for making, maintaining, and using the two-phase mixture are also provided. The gas molecules may be introduced into the liquid at a high velocity under elevated ... | 10/30/2007 |
| 7255332 | System and method for dissolving gases in liquids Apparatus and methods for dissolving a gas into a liquid comprises a saturation tank, a high pressure liquid pump in fluid communication with the tank, and a pressurized gas source in communication with a regulated gas head space of the saturation tank. The saturati... | 08/14/2007 |
| 7214317 | Tidal vertical flow wastewater treatment system and method A wastewater treatment system includes a tidal, sequential vertical flow marsh cell system having at least three marsh cells in serial forward fluid communication. Incoming wastewater to be treated is channeled to at least the first and a second marsh cell, and a po... | 05/08/2007 |
| 7198713 | Installation for the removal and the deactivation of organisms in the ballast water Installation for the removal and the deactivation of organisms in the ballast water, with the following characteristic features: a first feed pump for conveying the ballast water, an equipment for gravity precipita... | 04/03/2007 |
| 7179375 | Diffuser/emulsifier for aquaculture applications A method of treatment of water in an aquatic environment. Water is first pumped from a reservoir to a first mixing station. An inert gas is introduced into the pumped water at the first mixing station to provide inert gas saturated water, which inert gas saturated w... | 02/20/2007 |
| 7169306 | Versatile pre-thickened aerobic digester system An aerobic digester system in a wastewater treatment plant is made more versatile for different conditions by addition of an equalizer basin or in some embodiments, a bypass pipe. If infeed is received from a sequential batch reactor or from a concentrated septage, ... | 01/30/2007 |
| 7166219 | Method of purifying fischer-tropsch derived water A process for the production of highly purified water 44 from Fischer-Tropsch reaction water 12 includes distillation 14 as a primary treatment stage, biological treatment including anaerobic digestion 20 and aerobic digestion 22 a... | 01/23/2007 |
| 7166227 | Method of treating digested sludge A method of treating, in wastewater purification, sludge containing organic matter, divalent iron and phosphorus, in which the sludge that is treated is made to contain dissolved iron and phosphorus at a molar ratio Fe:P of above 1... | 01/23/2007 |
| 7163631 | Process for treating wastewater containing peracetic acid The present invention disclose a process for treating a wastewater from a foodstuff factory, wherein the pipelines are cleaned and the containers are sterilized by using a water containing peracetic acid as an disinfection agent. The process of the present invention... | 01/16/2007 |
| 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 |
| 7153431 | Method and system for utilizing activated sludge in a ballasted flocculation process to remove BOD and suspended solids A method and system for treating water or wastewater to remove both soluble BOD and suspended solids. The method entails a ballasted flocculation process where a flocculant and insoluble granular material is added to the water or wastewater to be treated causing sol... | 12/26/2006 |
| 7121532 | Aeration system for liquid An aeration tank used in a method of treating effluent includes a pipe for transporting the effluent from the source to the tank bottom and a discharge duct having a siphon effect for tapping off an overflow from the tank as more effluent is added from the source. A... | 10/17/2006 |
| 7118674 | Energy-efficient biological treatment with membrane filtration A membrane filtration system comprising one or more submerged ultrafiltration or microfiltration membrane assemblies at ambient pressure, each membrane assembly positioned 100–240 mm from a nearest wall, baffle, or adjacent membrane assembly and no more than 1 met... | 10/10/2006 |
| 7101482 | Method and facility for treatment of sludge derive from biological water purification facilities A process and system for treating excess sludge produced from a biological treatment system. The process includes biologically treating water or wastewater and producing excess sludge. The excess sludge is directed to a solubilizer where the sludge is solubilized. T... | 09/05/2006 |
| 7094350 | Method of sludge recycling The present invention provides a method of sludge recycling by utilizing an existing facility as it is, degrading sludge efficiently and simply, and producing useful recycled water from treated water separated from the sludge, and an apparatus for sludge recycling. ... | 08/22/2006 |
| 7087169 | Combined tidal vertical flow and horizontal flow wastewater treatment system and method A wastewater treatment system includes a vertical flow marsh cell that is adapted to contain media and to support plants having roots extending into the media, the roots and media positioned to contact water flowing downward through the marsh cell during a flooding ... | 08/08/2006 |
| 7060185 | Sewage treatment apparatus using self-granulated activated sludge and sewage treatment method thereof Provided is an apparatus for processing sewage by granulating activated sludge and a method thereof. The sewage processing apparatus includes an anaerobic granulation tank for granulating suspended microorganisms; an indirect aeration tank for supplying oxygen to th... | 06/13/2006 |
| 7052607 | Bioreactor processing method within a tank internally chambered to sequentially perform biological treatment and membrane filtration Wastewater is delivered to a single tank of a bioreactor system to undergo biological treatment. After undergoing such biological treatment, the wastewater is centrifugally separated outside the tank into contaminated portions with lowered and increased concentratio... | 05/30/2006 |
| 7041215 | System for composting-free disposal of organic wastes A system for composting-free disposal of organic waste and method thereof included a heating apparatus, a pretreatment apparatus, and a decomposition apparatus. The heating apparatus heats the pretreatment apparatus and the decomposition apparatus. The organic waste... | 05/09/2006 |
| 7037429 | Water treatment unit The invention at hand relates to an improved wastewater treatment plant consisting of a reactor and a filter device, such as for gaining drinking water or wastewater treatment. ... | 05/02/2006 |
| 7033503 | Municipal wastewater treatment apparatus and process with a continuous feed and cyclic aeration Disclosed are efficient municipal wastewater treatment apparatus and process characterized in that the nitrogen is removed by nitrification and denitrification reaction in the cyclic aeration reactor wherein Anaerobic state, Anoxic state and Oxic state are change in... | 04/25/2006 |
| 7029586 | Integrated tidal wastewater treatment system and method A wastewater treatment system includes a first lagoon having an inlet for receiving wastewater to be treated and a first vertical flow marsh cell having a bottom outlet. Water can be transported from the first lagoon to the first marsh cell. A second lagoon has an i... | 04/18/2006 |
| 7022237 | Aerobic wastewater management system, apparatus, and method A septic tank (11) having two separate compartments, a trash tank (13) and a mix liquor compartment, using aerobic bacteria to process waste, and methods of its use. A settling compartment allows heavy particles to settle while keeping lighter debris o... | 04/04/2006 |
| 7022233 | Biologically active reactor system and method for treating wastewater A biologically active reactor system for the treatment of wastewater comprises one or more submerged denitrification reactors having coarse media particles and a fixed biological film comprising biologically anoxic active microorganisms. One or more submerged aerate... | 04/04/2006 |
| 7018536 | Aerobic wastewater management system, apparatus, and method A wastewater processing and treatment system utilizes aerobic bacteria in two separate compartments to break down and digest waste. The first settling compartment between the trash tank and the mix liquor compartment is non-existent in conventional aerobic units. Th... | 03/28/2006 |
