Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8110109 | Biological water treatment by alternating continuous and sequential aeration A method of biologically treating water and more particularly, a process for nitrifying and denitrifying water includes employing a continuous aeration mode and a sequential aeration mode. In the continuous aeration mode, nitrification and denitrification reactions ... | 02/07/2012 |
| 7972513 | Process for treating nitrogenous wastewater with simultaneous autotrophic denitrification, hetertrophic denitrification and COD removal A process for treating nitrogenous wastewater contains an autotrophic denitrification reaction, a heterotrophic denitrification reaction and a COD removal reaction simultaneously and mixedly taking place in a single reactor. The nitrification reaction is caused by n... | 07/05/2011 |
| 7722770 | Method for treating produced water Systems and methods have been developed for treating the waste water contaminated with methanol and boron in addition to other contaminants. The systems and methods allow specifically for the removal of the methanol and boron without the addition of significant chem... | 05/25/2010 |
| 7550087 | Apparatus and method for treating FGD blowdown or similar liquids A process has steps of one or more of aerobic treatment to remove COD and nitrify a waste stream, anoxic treatment to denitrify a waste stream, anoxic treatment to remove selenium and anaerobic treatment to remove heavy metals and sulphur. The process may be used to... | 06/23/2009 |
| 7442306 | Autotrofic sulfur denitration chamber and calcium reactor The present invention describes novel biological systems and methods for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments, and the use of catholyte and anolyte for the improved conditioning of water in a... | 10/28/2008 |
| 7439054 | Bioreactor system for biological degradation of oily sludge A 10,000 gallon sequencing batch reactor tank for the on-site bio-degradation of oily sludge. Bacteria already present in and adapted to oily sludge degrade the hydrocarbons found in oily sludge within two weeks from 20,000 ppm to less than 100 ppm. A degradation cy... | 10/21/2008 |
| 7431839 | Low oxygen biologically mediated nutrient removal The present invention is directed to a substantially odorless biologically mediated treatment process for solid and liquid organic wastes. The present invention also provides for a novel nutrient rich humus material produced from the biologically mediated treatment ... | 10/07/2008 |
| 7416669 | Biological nutrient removal process and process control system for same The present disclosure describes an improved system and method for treating wastewater or other liquid. Furthermore, the present disclosure provides a control program for operating the system and method. In one embodiment, the treatment process utilizes a biological... | 08/26/2008 |
| 7413654 | Wastewater treatment control A wastewater treatment method. The method includes establishing a setpoint value of oxidation-reduction potential of a mixed liquor, measuring a measured value of oxidation-reduction potential of the mixed liquor, comparing the measured value of oxidation-reduction ... | 08/19/2008 |
| 7410584 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a stream comprising mixed liquor suspended solids and fixed growth solids to a high rate clarification stage, forming a clarifier effluent, a first wast... | 08/12/2008 |
| 7393452 | Compositions and methods for the treatment of wastewater and other waste A method for processing environmental samples to remove or otherwise reduce the level of certain chemical species. In a preferred embodiment, the present invention contemplates a process for reducing the level of inorganic and/or organic chemical species in wastewat... | 07/01/2008 |
| 7374683 | Biofilter and method for filtering a waste liquid The biofilter is used for the purification of a waste liquid using layers of filtering material, wherein the waste liquid moves downwardly by gravity while an O2-containing gas moves upwardly therein. The biofilter comprises a gas collector to capture at ... | 05/20/2008 |
| 7371323 | System and method for reducing wastewater contaminants A wastewater treatment system. Toilet, kitchen, commercial, and industrial process waste is segregated from the total wastewater stream and treated in order to reduce the total nitrogen, phosphorous, pathogens, household hazardous and hazardous wastes and organic ca... | 05/13/2008 |
| 7341660 | Unitary three stage wastewater treatment system The invention is a three stage wastewater treatment system having a first tank, a second tank and a third tank, all in fluid communication and forming a unitary structure. The first and second tanks are nested, where the first tank is the innermost tank. The first t... | 03/11/2008 |
| 7318896 | Method and apparatus for utilization of recovered magnesium ammonium phosphate A method utilizing inorganic nutrient salts, which are inexpensive and easily usable, for waste water whose aerobic and/or anaerobic biological treatment cannot be established unless inorganic nutrient salts are added, is provided. A method and apparatus are provide... | 01/15/2008 |
| 7316919 | Composite materials comprising supported porous gels This invention relates to a composite material that comprises a support member that has a plurality of pores extending through the support member and, located in the pores of the support member, and filling the pores of the support member, a macroporous cross-linked... | 01/08/2008 |
| 7314563 | Membrane coupled activated sludge method and apparatus operating anoxic/anaerobic process alternately for removal of nitrogen and phosphorous Disclosed are a membrane coupled activated sludge method and apparatus operating anoxic/anaerobic processes alternately for removal of nitrogen and phosporus, wherein nitrogen and phosphorous together with organics in the sewage, wastewater, filthy water etc. can be... | 01/01/2008 |
| 7309433 | Fluid bed expansion and fluidisation Method and apparatus (8) in which a biomass is carried on a substrate which is fluidised. The fluidised substrate has below it a lazer of distributor particles through which the fluidising medium passes prior to contact with the fluidised substrate and biomas... | 12/18/2007 |
| 7309434 | Apparatus and method for wastewater treatment A method for treating wastewater. The method comprises: providing a first dose of air to aerate a medium bed; supplying a dose of wastewater to the aerated medium bed; allowing nitrification of the wastewater to occur; allowing denitrification to occur; and providin... | 12/18/2007 |
| 7306733 | Autotrophic denitrification chamber and calcium reactor The present invention describes novel biological systems for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments. ... | 12/11/2007 |
| 7294272 | 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... | 11/13/2007 |
| 7279100 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a mixed liquor suspended solids to a high rate clarification stage, forming a clarifier effluent, a first waste activated sludge stream, and a return wa... | 10/09/2007 |
| 7267764 | Apparatus for removing nitrogen An apparatus for removing nitrogen is provided herein. In the apparatus, the nitrogen is removed from wastewater containing a BOD component and ammonium nitrogen by anaerobic ammonium oxidation. The apparatus includes a distributor, which distributes the wastewater ... | 09/11/2007 |
| 7235178 | Process and assembly for the treatment of waste water on ships Process for treating waste water on ships in which the waste water is pretreated by surface filtration, the pretreated waste water being collected in a first tank acting as a mixing tank and optionally enriched with oxygen. The waste water from the first tank is con... | 06/26/2007 |
| 7211429 | Organic waste material treatment process An organic waste material treatment process comprising subjecting the organic waste material to conditions under which anaerobic digestion occurs followed by conditions under which aerobic composting occurs. Preferably, the organic waste material is pre-conditioned ... | 05/01/2007 |
| 7208090 | Wastewater treatment control Wastewater treatment controls that maintain the ORP of a mixed liquor at a relatively stable value during a wastewater treatment process such as an aerated-anoxic wastewater treatment process. The wastewater treatment control may compare a setpoint value of ORP and ... | 04/24/2007 |
| 7195712 | Wastewater treatment apparatus and method for removing nitrogen and phosphorus Provided is a wastewater treatment apparatus for removing nitrogen and phosphorus having an anaerobic tank, an anoxic tank, an aerobic tank and a clarifier, wherein the aerobic tank includes has a baffle installed at one side thereof to form a dissolved oxygen reduc... | 03/27/2007 |
| 7172699 | Energy efficient wastewater treatment for nitrogen and phosphorus removal In a wastewater treatment plant, the liquid side of the plant has preferably four stages for nitrification and/or denitrification, prior to further treatment such as a clarifier. Energy requirements are reduced by reducing aeration requirements. Four or more tanks/z... | 02/06/2007 |
| 7144509 | Process and apparatus for waste water treatment Method and apparatus for treating contaminants in water under anaerobic conditions is disclosed. The method includes adding to contaminated water a composition including an aqueous mixture of at least one carbohydrate and at least one alcohol and/or bacteriastat. Th... | 12/05/2006 |
| 7105091 | Waste treatment with control over biological solids Waste-treatment processes are enhanced through generation and introduction of specific biological populations customized to perform or favor specific tasks either during the main process, or for solids minimization purposes in a post-treatment process. These bacteri... | 09/12/2006 |
| 7087170 | Method and system for treating wastewater containing organic compounds A system for treating wastewater containing organic compounds is provided, comprising an anaerobic bioreactor, an aerobic bioreactor disposed rearwardly of the anaerobic bioreactor, and a membrane separation reactor disposed rearwardly of the aerobic bioreactor. The... | 08/08/2006 |
| 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 |
| 7060186 | Method and apparatus for the treatment of wastewater A batch process and apparatus for treating wastewater in a system employing anaerobic and aerobic zone reaction vessels under elevated pressure is disclosed in which an amount of processed activated sludge material is charged into an aerobic zone and wastewater to b... | 06/13/2006 |
| 7056438 | Flood and drain wastewater treatment system and associated methods The wastewater treatment system includes at least one fluidized bed reactor, such as a vessel containing media to which biofilms may attach. The vessel has an inlet and an outlet adjacent a bottom, and an overflow outlet adjacent a top, of the vessel. An element for... | 06/06/2006 |
| 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 |
| 7025883 | Autotrofic sulfur denitration chamber and calcium reactor The present invention describes novel biological methods for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments. ... | 04/11/2006 |
| 7014769 | Method for reducing nitrate concentration in wastewater The present invention is a method for reducing the nitrate concentration in wastewater within a wastewater treatment apparatus configured to define an aeration zone and a quiescent zone or dilution zone. The method comprises the step of ceasing airflow into the aera... | 03/21/2006 |
| 7008538 | Single vessel multi-zone wastewater bio-treatment system A process for treating wastewater and a system for practicing the process includes: providing a plurality of zones within a single vessel wastewater treatment system; feeding wastewater into the system; maintaining an aerobic zone in the upper central portion of the... | 03/07/2006 |
| 7005068 | Method and apparatus for treating animal waste and wastewater Novel methods and apparatuses are disclosed for the treatment of wastewater to reduce often associated offensive odors by promoting aerobic conditions through decreasing the amount of oxygen required to maintain aerobic cultures and/or aerobic biological activity in... | 02/28/2006 |
| 6936170 | Methods and apparatus for biological treatment of aqueous waste A biofilter system of the present invention utilizes an Alternating-Aerobic-Anoxic (AAA) process in a single reactor to provide efficient and cheap removal of carbonaceous materials, nitrogenous materials, and/or mixtures thereof from aqueous waste. The biofilter sy... | 08/30/2005 |
