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| Number | Title | Issue Date |
| 7914684 | Method and apparatus for treating mixed waste by pyrolysis A method and apparatus for treating mixed waste by pyrolysis. Organic mass is carbonized by heating to carbon in a pyrolysis reactor (3) in an oxygen-free environment. Pyrolysis gases are distilled for oil and the gases are used for energy production. Solid m... | 03/29/2011 |
| 7628923 | Carbon pre-treatment for the stabilization of pH in water treatment Treatment of un-wetted or low moisture activated carbon with a suitable quantity of carbon dioxide provides a material which, on contact with water, controls pH in treatment water. Use of this treated activated carbon in a water treatment system provides water havin... | 12/08/2009 |
| 7575689 | Naphthenic acid removal process A process for removing naphthenic acids from an aqueous stream using a composition comprising calcium and activated carbon, and optionally a process for removing naphthenic acid and selenium compounds from an aqueous stream, is disclosed. ... | 08/18/2009 |
| 7413663 | Water treatment apparatus and method A water treatment apparatus includes a housing comprising multiple housing portions and a plurality of treatment sections disposed within the housing, each treatment section comprising at least one distinct particulate layer. The apparatus is designed so that no wat... | 08/19/2008 |
| 7404901 | Method for the removal of arsenic ions from water A method for the removal of arsenic ions from water with a porous silica composition with an organofunctional moiety comprising a thio which binds the arsenic ion and is then removed from the water. The method comprises the quality of the water. ... | 07/29/2008 |
| 7389639 | Water recovery and purification A system for recovering and purifying water from a gas stream may include, a gas stream purification unit for purifying the gas stream, a water separation unit for separating water from the purified gas stream, and a water purification unit for purifying the water s... | 06/24/2008 |
| 7374687 | Method of decolorizing stock-raising treatment water A decolorization treatment method in which not only can a liquid that has been obtained by treating raw water that is stock-raising treatment water in a purifier tank be decolorized swiftly with simple equipment, but moreover the treatment water can be purified to a... | 05/20/2008 |
| 7361279 | Removing metals from solution using metal binding compounds and sorbents therefor Removing metals from metal containing acidic solutions, such as contaminated waters and industrial wastewaters, is described. An amphipathic, heterocyclic, metal-coordinating compound (an extraordinaiy ligand) and a sorbent are added to a solution, such that the add... | 04/22/2008 |
| 7361373 | Antipyrotic and method of manufacturing the same The present invention relates to an antipyrotic having compositions excellent for treating burn and a normally used carrier in a fixed ratio, and a method of manufacturing the same. The antipyrotic of the present invention has, as its main composition, a carbonized ... | 04/22/2008 |
| 7361280 | Catalytic activated carbon for removal of chloramines from water This application discloses a method for enhanced removal of chloramines from a chloramines-containing fluid media by contacting said media with a catalytic activated carbon characterized by having present in the graphene structure of the carbon from 0.01 to 10 wt % ... | 04/22/2008 |
| 7332091 | Process for treating storm water An insert for a storm water treatment system includes an elongated baffle member that is configured to be mounted within a substantially upright storm water drain basin so as to separate the interior space of the drain basin into a first compartment that communicate... | 02/19/2008 |
| 7311841 | Method for treating water by ballasted flocculation and decantation The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in the presence and around a ballast; introducing the mixture in a decantation zone; separating the treated wa... | 12/25/2007 |
| 7303684 | Process for microwave alternative destruction-adsorption An economically viable process for the microwave destruction of contaminated water-based liquids, such as by chemical and biological agents, employs carbonaceous materials to enhance the efficiency of the microwaves while keeping the bulk temperature down to only a ... | 12/04/2007 |
| 7300586 | pH stable activated carbon An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound.... | 11/27/2007 |
| 7282526 | Particle having an attached halide group and methods of making the same A modified particle or aggregate is disclosed wherein a particle has an attached group having the formula: wherein the substituents are defined in the disclosure. Modified particles with attached polymers are als... | 10/16/2007 |
| 7276167 | Method of adding activated carbon in water purification and method of water purification When a raw water to be filtered c is fed from a raw water tank 11 reservoiring a raw water (water to be treated) to a membrane module by a raw water pump P1, an activated carbon raw material supplied from an activated carbon tank is milled together wit... | 10/02/2007 |
| 7273597 | Carbon material and method of making same The present invention provides a novel carbon material for a electric double-layer capacitor having characteristics entirely different from prior art activated carbon. The capacitor develops a capacitance by a mechanism entirely different from the mechanism of an el... | 09/25/2007 |
| 7258798 | Potable water treatment plant and method of maintaining same A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand... | 08/21/2007 |
| 7247241 | Process for treating lipophilic fluid Process for treating lipophilic fluids employing filters, more particularly, multifunctional filters that are capable of removing as well as adding components to lipophilic fluids being filtered are provided by the present invention. ... | 07/24/2007 |
| 7247240 | Method for treating waste water The invention provides a method for treating waste water wherein organic and inorganic substances in waste water can be treated at high levels regardless of the concentration, and a unit itself can be made compact. The method of the invention is a method for treatin... | 07/24/2007 |
| 7229560 | Sack-based processes for recovering oil floating on water One or more water- and oil-porous containers or sacks are made of a pair of mesh sheets affixed together and stiffened around their perimeter. The sacks can be partially filled with a multitude of tubular bodies made of an oil-entrapping polymer, which have their lo... | 06/12/2007 |
| 7217346 | Water treating method, water treating apparatus, and hydroponics system using the apparatus There is provided a water treating method which can not only improve an effect of eliminating microorganisms in water intended for cooking and drinking or waste water but also prevent a reduction in trace amounts of nutritional elements. In the method, at least a pa... | 05/15/2007 |
| 7172701 | Water treatment method using an inorganic powder reagent with high specific surface area including a step of recycling said reagent A method of treating water including mixing the water with an inorganic powder reagent for reducing the content of organic matter. The water, after being mixed with the inorganic powder reagent, is subjected to a membrane separation step that produces blow off produ... | 02/06/2007 |
| 7160468 | Cooling system for fuel cell and prevention method for degradation of coolant therefor A cooling system for a fuel cell system is provided with a circulation system including a circulation pump for circulating coolant, the coolant essentially consisting of water and glycol, a fuel cell connected to the circulation system so as to be cooled by the cool... | 01/09/2007 |
| 7160453 | Filter for removing contaminants from water A filter for removing contaminants from water. The filter has a first porous filter part formed by setting an active carbon in a high-molecular low-melt index polymeric binder. An inlet directs water to be filtered to the first porous filter part. An outlet directs ... | 01/09/2007 |
| 7157001 | Carbon filtration process and apparatus for removing PCB's and other compounds from wastewater Process and apparatus for treating wastewater from a sewer system including the steps of: (A) removing solids contained in the influent to create solids-depleted preliminary effluent (PrE) and to protect downstream systems from premature failure due to wear from sol... | 01/02/2007 |
| 7144512 | Method of reclaiming brine solutions using an organic chelant A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2 | 12/05/2006 |
| 7101115 | stabilization of persistent hydrophobic organic contaminants in sediments using coal- and wood-derived carbon sorbents To overcome obstacles faced by current remediation technologies for contaminated sediments, the present invention provides a new strategy based on in situ control of hydrophobic organic contaminants (HOC) bioavailability. The strategy employs the addition of activat... | 09/05/2006 |
| 7094338 | Method of making and using a filter in the form of a block of agglomerated copolymer fragments One of the exemplary filter systems described includes a bracket and a filter module that can be suspended from the bracket by a plurality of flexible supports. The bracket can support the filter system beneath the grate of a storm drain without the need for the fil... | 08/22/2006 |
| 7087162 | Accessible well for brine tank A well (12) outside of a brine tank (10) is provided which provides better accessibility to the brine refill valve (112) or other components within the well. Also, apertures (42–48) of differing elevations above the bottom of the brine ... | 08/08/2006 |
| 7048862 | Free atom aqueous solution producing apparatus, free-atom aqueous solution producing method, and free-atom aqueous solution A free radical solution producing apparatus, which comprises: a feed port (6) in which water is drawn, a dechlorination processing section (1) which produces first water by decomposing chlorine compounds in said water, a magnetic processing section ( | 05/23/2006 |
| 7048878 | Process of forming oil-absorbent bodies A process for forming an oil-sorbent composition of matter with bound combinations of styrene-butadiene-styrene (SBS) and ethylene propylene diene monomer (EPDM) utilizes a low-temperature extrusion process. The SBS, or both materials, may be in the form of multitud... | 05/23/2006 |
| 7018541 | Removal of fluorinated surfactants from waste water The present invention provides a method of removing a fluorinated surfactant from waste water comprising fluoropolymer particles. The method comprises (i) adding a non-fluorinated surfactant to the waste water (ii) contacting the thus obtained waste water with adsor... | 03/28/2006 |
| 7008543 | Use of chlorine dioxide and ozone for control of disinfection by-products in water supplies A method of oxidation or pathogen inactivation in water supplies using the combination of treatments of chlorine dioxide and ozone in the sequential steps prior to filtration and distribution. Results indicate that the addition of chlorine dioxide before prezonation... | 03/07/2006 |
| 6991732 | Process for the recovery of fluorosurfactants by active charcoal The present invention relates to a process for the recovery of a fluorosurfactant present in an aqueous solution, in a gaseous effluent or in both involving a) obtaining an aqueous solution or gaseous effluent comprising 1 to 1,000 ppm of surfactant, b) removing any... | 01/31/2006 |
| 6991730 | Methods for removing organolead compounds from aqueous compositions Methods for removing organolead compounds from aqueous and non-aqueous organolead compositions. The methods of the present invention include: providing aqueous or non-aqueous compositions including organolead compounds; ozonating the organolead compositions with ozo... | 01/31/2006 |
| 6991731 | Treatment process for removing radioactive thorium from solvent extraction liquid effluent The liquid effluent from solvent extraction contains radioactive thorium Th-231 and Th-234. This invention uses an ion exchange process to remove and concentrate the thorium. The process is designed so that the thorium remains on the ion exchange column until it dec... | 01/31/2006 |
| 6989102 | Alginate gel based adsorbents for heavy metal removal An alginate gel adsorbent to remove heavy metal ions according to the present invention is prepared by adding dropwisely 0.1-5 wt % alginate solution to a polyvalent cationic solution thereby cross-linking alginic acid with polyvalent cations. An alginate gel adsorb... | 01/24/2006 |
| 6982068 | Method for destruction of organic compounds by co-oxidation with activated carbon A method for oxidizing carbon adsorbable organic compounds in a controlled manner within a bed of activated carbon. The bed of activated carbon is exposed to a source of molecular oxygen, such as air, and is controlled within a temperature range whereby the molecula... | 01/03/2006 |
| 6953525 | Potable water treatment plant and method of maintaining same A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand... | 10/11/2005 |
