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| Number | Title | Issue Date |
| 8070960 | Method of dewatering solids laden liquids utilizing a reusable filter element A method of dewatering a solids laden waste stream, whereby the slurry is pumped into a vertical filter retaining structure and the liquid is allowed to flow out through the pores of the filtration element while retaining the solids within the structure. After the s... | 12/06/2011 |
| 7914685 | Rocks and aggregate, and methods of making and using the same Compositions comprising synthetic rock, e.g., aggregate, and methods of producing and using them are provided. The rock, e.g., aggregate, contains CO2 and/or other components of an industrial waste stream. The CO2 may be in the form of divalent... | 03/29/2011 |
| 7906028 | Hydraulic cements comprising carbonate compound compositions Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydrau... | 03/15/2011 |
| 7820054 | Method for dewatering slurry from construction sites A method of removing solids from the slurry at a construction site located on or near a stream in order to improve the quality of water discharged into the stream by forming treatment zones for receiving slurry, said zones comprising walls of filter bags and floors ... | 10/26/2010 |
| 7794602 | Method of purifying liquor Disclosed herein is a purification method characterized by adding a chitosan powder or a chitosan-coated substance, and optionally further adding a silica sol to liquor and filtering the mixture by a filter machine to remove unsaturated fatty acids, compounds of uns... | 09/14/2010 |
| 7678279 | Metal compound removal The present invention relates to a process for separating at least one metal compound and/or a component thereof from a mixture, said process comprising contacting the said mixture with a heteropoly acid or heteropoly acid anion, thereby producing a precipitate comp... | 03/16/2010 |
| 7527739 | Apparatus, system, and method for multistage water separation An apparatus, system, and method are disclosed for multistage water separation. A first separation layer separates water droplets from a fuel flow by repelling the first water droplets. A coalescing layer may coalesce fine water droplets in the fuel flow. In one emb... | 05/05/2009 |
| 7459088 | Water desalination process and apparatus A process and system for purifying water is disclosed. For example, in one embodiment, the process may be used to remove a divalent salt, such as calcium sulfate, from a water source in order to prevent the divalent salt from precipitating during the process. The wa... | 12/02/2008 |
| 7438817 | System and method for treatment of acidic wastewater A wastewater treatment system comprising separation unit operations inhibits or promotes the formation and precipitation of species by controlling the pH of wastewater to be treated entering into the separation unit operations. The separation unit operations include... | 10/21/2008 |
| 7431846 | Method for concentrating solids from drilling slurry An apparatus to separate solids from drilling slurry, having an inlet positioned over an outlet of a concentration tank to displace water that would otherwise enter the down-stream centrifuges. Baffles are provided to direct solids to the outlet and minimize the tim... | 10/07/2008 |
| 7419596 | Extraction and winterization of lipids from oilseed and microbial sources A process for purifying a lipid composition having predominantly neutral lipid components having at least one long chain polyunsaturated fatty acid is disclosed. The process employs contacting the lipid composition with a polar solvent, such as acetone, wherein the ... | 09/02/2008 |
| 7413657 | Method for selective extraction A process for the extraction of an unwanted material from a fluid containing the unwanted material comprising the steps of introducing an immiscible extraction fluid into the fluid having an unwanted material therein to form a plurality of extraction fluid droplets ... | 08/19/2008 |
| 7374688 | Spark-induced consolidation of sludge Exposing sludge to underwater, high-intensity sparks, to increase cake solids, provide faster settling, and increase the rate of dewatering. ... | 05/20/2008 |
| 7368057 | Method and system for removing residual water from excess washcoat by ultrafiltration A washcoat coating composition is disclosed that includes at least one water insoluble organic solvent and at least one polymer, such as an epoxy acrylic copolymer. A method of removing residual water from a mixture of residual water and washcoat using ultrafiltrati... | 05/06/2008 |
| 7365236 | Generation of a creosote-like mixture, or recovery of metals, or both from preserved wood by reaction in supercritical water An environmentally-friendly method is disclosed for transforming preserved wood, for example creosote-treated or CCA-treated wood with supercritical water. The product of treating weathered creosote-treated wood is a mixture that is similar to fresh creosote. The no... | 04/29/2008 |
| 7354733 | Method for sorting and separating living cells We disclose methods of sorting or separating mixtures of living cells (e.g., eukaryotic, prokaryotic, mammalian, pathogenic, bacterial, viral, etc.). We perform our methods by activating cell-selective photophoric labels, which photosensitize and chemically reduce a... | 04/08/2008 |
| 7351385 | System for enabling landfill disposal of kitchen waste oil/grease An apparatus for conversion of kitchen waste grease to a landfill-acceptable solid includes a grease collection cartridge. A mixing baffle within the cartridge has a package with a reactant to convert grease and oil, and water into soap. The apparatus has means for ... | 04/01/2008 |
| 7347945 | Method and an installation for separating out multiphase effluents The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjuste... | 03/25/2008 |
| 7338286 | Dental implant system An implant comprising two internal anti-rotational features. One anti-rotational feature is adapted to engage a driving tool, while the other anti-rotational feature is adapted to engage an abutment. An implant abutment system is provided with an angled abutment ada... | 03/04/2008 |
| 7338604 | Process for recycling paint flush solution A process for removing solids from a water-based flush solution, The process includes: providing dirty flush solution; directing the dirty flush solution to a treatment vessel; adding one or more chemicals to the treatment vessel to form a treated flush solution; se... | 03/04/2008 |
| 7329356 | Flocculating agent for clarifying the water of man-made static water bodies A method is described for clarifying man-made static water bodies in which polyaluminum silicate sulfate is added to the water of the water body. Superior flocculation is achieved through the use of polyaluminum silicate sulfate which results in cleaner and more aes... | 02/12/2008 |
| 7323342 | Method for improving oil desalting by forming unstable water-in-oil emulsions A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight fraction of the oil that is most strongly adsorbed on a silica gel column success... | 01/29/2008 |
| 7314512 | Treatment of surfaces to stabilize heavy metals A reactive coating composition and method for treating a surface including heavy metals by applying the reactive coating composition to the surface. The surface can be, for example, a paint layer containing heavy metals. The reactive coating composition includes a s... | 01/01/2008 |
| 7303654 | Cellulosic product and process for its production The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. T... | 12/04/2007 |
| 7270796 | Ammonium/ammonia removal from a stream In one embodiment, an ammonium removal method can comprise: removing a multivalent cation from a stream comprising ammonium to form a treated stream; converting the ammonium in the stream to ammonia by increasing the pH of the stream; and separating the ammonia from... | 09/18/2007 |
| 7255728 | Apparatus and method for degassing liquids Apparatus and method for degassing liquids particularly cationic monomers. Fluid comprising liquid to be degassed together with sweep gas is admitted tangentially into a column (10) and forced down the column by a tubular baffle (16) which defines, wit... | 08/14/2007 |
| 7250448 | Anionic copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions A papermaking method and a composition which utilize, as a drainage aid, a water-soluble anionic copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k′) determined in 0.01M NaC... | 07/31/2007 |
| 7235175 | Device for treating hydrophilic sludge by hydraulic turbulence effect combined with oxidation and chemical reactions by additive input A method and device for treating sludge and slime to enable reuse in soil upgrading and in building material systems. Hydrophilic sludge and slime having a water content not less than 70% are continuously treated in a manner which enables colloid removal, dehydratio... | 06/26/2007 |
| 7208457 | Heavy metal-remediating paint stripper An improved paint stripper is provided and comprises at least one paint-stripping agent modified with at least one heavy metal remediation agent. Optionally, one or more viscosity-modification agents, dispersants, or other additive is also included. The invention al... | 04/24/2007 |
| 7208555 | Process for preparing polyvinylidene fluoride copolymer The present invention provides a polyvinylidene fluoride copolymer capable of forming a uniform film, a solution of the copolymer and a thin film comprising the polyvinylidene fluoride copolymer. The polyvinylidene fluoride copolymer of the present invention is char... | 04/24/2007 |
| 7179376 | Method and system for removing residual water from excess washcoat by ultrafiltration A washcoat coating composition is disclosed that includes at least one water insoluble organic solvent and at least one polymer, such as an epoxy acrylic copolymer. A method of removing residual water from a mixture of residual water and washcoat using ultrafiltrati... | 02/20/2007 |
| 7179387 | Treatment system and method for remediating a body of water A method for remediating a body of water includes sequestering a sector of water within the body of water. A communications channel is established between the water sector and a supply site. The water sector is at least partially remediated using the channel to alte... | 02/20/2007 |
| 7157010 | Polymeric flocculant infused silt fence A polymeric flocculant infused silt fence assembly comprising two opposing and attached geo-textile sheets, each adapted to filter entrained non-colloidal particles and together encasing a layer of polymeric flocculant material. In a preferred embodiment the polymer... | 01/02/2007 |
| 7150793 | Method of reducing materials contained in juice A process system that uses a reduced amount of lime or other base to clarify or purify juice obtained from plant material such as sugar cane, sugar beets, or sweet sorghum. Specifically, apparatus and methods to reduce volatile materials in juice providing a product... | 12/19/2006 |
| 7148320 | Polymer purification Polymers derived from various monomers are purified by fractionalization of the crude polymers in a solvent/non solvent system via reverse precipitation. ... | 12/12/2006 |
| 7140441 | Fluid separation method and system A method and a system for separating the phases of a multiphase fluid from one or more wells. The system includes at least one first gravity separator and at least one second gravity separator, and elements for conducting the fluid from the well or wells to the firs... | 11/28/2006 |
| 7141181 | Composition comprising amphoteric polymeric flocculants A composition is provided which comprises amphoteric polymers comprising, as constituent monomer units, a cationic monomer unit, an anionic monomer unit, and optionally a nonionic monomer unit and having a 0.5% salted viscosity of 10 to 120 mPa·s, wherein said amph... | 11/28/2006 |
| 7094344 | Filter device The present invention relates to a filter device for removing impurities contained in liquid. A filter housing 18 is provided with a container for accommodating a filter bag 2 therein, a deposit recovery tank 3 for recovering a deposit and a flo... | 08/22/2006 |
| 7081204 | Remediation of barium, bicarbonate and alkalinity in ground water A method for reducing the total concentration of barium in a source of ground water, such that the water can safely be returned to the watershed or used for drinking water, is described. The present method includes extracting the water from a source thereof, and con... | 07/25/2006 |
| 7077963 | Processes for water treatment The invention provides compositions comprising bauxite refinery residues that have been reacted with sufficient calcium and magnesium ions that they have a reaction pH of less than 10.5, and one or more water treating additives. The invention also provides processes... | 07/18/2006 |
