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| Number | Title | Issue Date |
| 7736525 | Method of making an alkoxylated polyethylenimine product A method of making an alkoxylated polyethyleneimine (APEI) product having reduced discoloration includes treating a composition including a component selected from the group of polyethyleneimine (PEI), APEI intermediate, and combinations thereof that is used to make... | 06/15/2010 |
| 7387736 | Pathogen reduction using chloramines A method and apparatus for implementing pathogen reduction within a poultry processing or food processing plant that uses water that has been treated with chloramines at an advantageous dosagebefore being introduced to the production process at processing steps. The... | 06/17/2008 |
| 7303770 | Cancer chemoprotective food products Vegetable sources of cancer chemoprotective agents have been identified which are extraordinarily rich in glucosinolates, metabolic precursors of isothiocyanates. The vegetable sources are used to provide a dietary means of reducing the level of carcinogens in mamma... | 12/04/2007 |
| 7258801 | System and method for reducing deionized water consumption A system and method are provided for reducing DI water consumption by delivering the DI water at an elevated processing temperature when demanded. The DI water is passed through a heater for heating the DI water to a processing temperature in a single pass. The DI w... | 08/21/2007 |
| 7163637 | Apparatus and process for taking up particles from a water surface The invention relates to an apparatus and a process for taking up particles, in particular particles of oil, algae or dirt, from a water surface (2). A hull structure (1) is moved over the water surface (2). In this case, a flow (6) of wa... | 01/16/2007 |
| 7070693 | Process for treating septage A process and apparatus for the treatment of septage, particularly grease trap waste, is disclosed. The inventive process will convert the septage into Biosolids (sludge) and water dischargeable to the environment. The treated septage achieves pathogen reduction, an... | 07/04/2006 |
| 7063795 | Method for starting up a system for treating waste by hydrothermal oxidation A method for starting up a system for oxidating organic bodies. The system includes a tubular body wherein an aqueous body is injected into the inlet thereof at a pressure P1 the tubular body having a first zone extending the inlet thereof, a second zone into... | 06/20/2006 |
| 7022242 | Reduction of wastewater in phosphate manufacturing Use and reduction of wastewater or “pond water” created by the wet-process phosphoric acid manufacturing there is created a large amount of wastewater or “pond water” to substantially reduce or eliminate the discharge of pond water with contaminants to the e... | 04/04/2006 |
| 7022240 | Method for on-site treatment of oil and gas well waste fluids An apparatus and method for on-site treatment and reclamation of oil and gas well waste water or fracturing fluids. The mobile treatment process and apparatus provide both chemical precipitation and filtration to treat the drilling fluid waste to a technically and e... | 04/04/2006 |
| 7001512 | Closed loop processing system for waste and crops A process for treating waste products discharged in a waste water from an animal operation, such as a swine confinement facility includes a holding tank for receiving waste water from the flushing of the facility in which solids to accumulate at the bottom thereof; ... | 02/21/2006 |
| 6986848 | Apparatus for purifying nucleic acids and proteins A method for purifying nucleic acids or proteins comprising a plurality of piston pumps; and a plurality of nozzles capable of having a plurality of disposable tips which are automatically attachable/detachable. The apparatus includes a mechanism for mixing a liquid... | 01/17/2006 |
| 6942779 | Method and system for regenerating of plating baths The present invention provides a system and method for selectively removing one or more organic and inorganic and also preferably one or more inorganic contaminants from plating baths. More particularly, the invented method relates to the use of a source of energy i... | 09/13/2005 |
| 6919027 | Method for treating bio-organic and wastewater sludges An improved process of treating sludge to provide a stable product for use as a beneficial soil or fertilizer for agricultural lands which includes the steps of: (a) mixing sludge with at least one alkaline material in an amount sufficient to raise pH of the mixture... | 07/19/2005 |
| 6913700 | Method of and arrangement for continuous hydrolysis of organic material A method of and an arrangement for continuous hydrolysis of organic material in the form of sludge with a dry solids content of 1-20%. A sludge containing the organic material with a low content of abrasive components and a dry solids content of 1-20% is heated to a... | 07/05/2005 |
| 6863865 | Sterilization of pharmaceuticals A method of sterilizing a pharmaceutical composition containing a suspension of a pharmaceutical comprises rapidly heating the pharmaceutical composition from ambient temperature to an elevated temperature, maintaining it at or above the elevated temperature for a p... | 03/08/2005 |
| 6858179 | Process for producing sterile water for injection from potable water By treating potable water at a temperature of at least 230° C. (446° F.) and at a pressure at least equal to the pressure of saturated steam at said temperature, can produce pyrogen-free water using treatment times of 0.05 to 5 seconds or less. The addition of an ... | 02/22/2005 |
| 6833076 | Water treatment A method for the treatment of waste water by the generation of radicals in the waste water comprises applying to the waste water at least one substance which is capable of providing radicals in the waste water. The substance decomposes by a unimolecular mechanism or... | 12/21/2004 |
| 6824694 | Method for treating waste by application of energy waves The present invention relates to a method and system for treating waste materials, such as wastewater treatment plant biosolids or process wastes, by application of energy waves. In one embodiment, waste materials are treated by adding and blending an alkaline mater... | 11/30/2004 |
| 6808639 | Method and apparatus for reducing the amount of hydrogen sulfide in effluent of a water heater The present invention relates to a method and apparatus for reducing the amount of hydrogen sulfide in the effluent of a water heater. A water heater of the present invention comprises an aeration device comprising a pump connected to a tube connected to an air spar... | 10/26/2004 |
| 6808638 | Methods and apparatus for processing temperature sensitive materials A method and system (10) for selectively removing one component of a material thereby concentrating other components of the material are disclosed. The material is cooled to below the melting temperature of the material to form a supercooled liquid phase with... | 10/26/2004 |
| 6796436 | Method and apparatus for preparing pure water Water treatment systems or assemblies are normally tested after construction, at least for leaks, prior to shipping or storage. Pressure testing with a gas is hazardous, so testing with water is a standard method. After testing, the water is displaced from the syste... | 09/28/2004 |
| 6776958 | Method and device for treating a heavily loaded liquid effluent in particular with nitrogen and with phosphorus A device for treating a liquid effluent such as pig slurry containing significant quantities of nitrogen and phosphorus, the device including a mixing reactor for contacting the liquid effluent with the basic reagent, provided with an intake for said effluent and an... | 08/17/2004 |
| 6761828 | Process for the reduction of concentration of nitrates and/or nitrogen-containing compounds by means of SO2 Nitrate-containing (contaminated) solutions are reduced with SO2 gas in the presence of an at least equimolar amount of NH4+ or ammonium salt. ... | 07/13/2004 |
| 6673247 | Sludge dewatering and pasteurization process A process for dewatering and reducing pathogens in liquid waste sludge having a liquid component and a sludge solids component. Alkaline material is added to the liquid waste sludge. Flocculent may then be mixed with the liquid waste sludge. The liquid wa... | 01/06/2004 |
| 6623650 | Processes and apparatus for treating sewage or like sludge There is disclosed a process for treating sewage or similar organic sludge to produce a pasteurized and dried product comprising the steps of: drying the sludge to substantially the desired dry solids content of the product; and thereafter adding an al... | 09/23/2003 |
| 6596160 | Periodic ozone treatment system for a showering tower type water cooling system A periodic ozone treatment system for a showering tower type water cooling system worked once daily for a period of 10~30 minutes essentially comprises: an ozone dissolving tank to prepare high density ozone solution therein and periodically fed to the co... | 07/22/2003 |
| 6576145 | Method of separating hydrocarbons from mineral substrates Method and apparatus for treating a mixture of mineral substrate particles and hydrocarbon compounds, especially tar sands and contaminated soils, to recover a hydrocarbon portion and a cleaned substrate portion. In a preferably continuous process, hydroc... | 06/10/2003 |
| 6555055 | System for preventing and remediating biofilms in dental equipment A system having a fluid source and a pasteurizer coupled with a disinfectant unit in flow communication with the fluid source for use in disinfecting dental or other water lines. The combination of pasteurizer and disinfectant unit is adapted to receive w... | 04/29/2003 |
| 6548681 | Process for the recovery of a polyol from an aqueous solution A process for the separation of a polyol or multiple polyols in admixture with other organic compounds, usually those produced with the polyol, is described. The process uses a distillation in a column (11) of a cyclic acetal from an aqueous solution whic... | 04/15/2003 |
| 6531034 | Land-based desalination using positively buoyant or negatively buoyant/assisted buoyancy hydrate Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Salt (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is m... | 03/11/2003 |
| 6497794 | Desalination using positively buoyant or negatively buoyant/assisted buoyancy hydrate Methods and apparatus for desalination of salt water (and purification of polluted water) are disclosed. Saline (or otherwise polluted) water is pumped to a desalination installation and down to the base of a desalination fractionation column, where it is... | 12/24/2002 |
| 6491829 | Method and unit for processing contaminated liquid For conversion of harmful compound in contaminated liquid into harmless compound by use of reactant, a plurality of agitators are arranged in a vertical superposition within a closed agitation chamber and, after the contaminated liquid is charged into the... | 12/10/2002 |
| 6444130 | Process for rendering waste from electric furnace production of phosphorus non-hazardous The invention is a process for treating waste slurry generated in the electric furnace production of phosphorus in which a superatmospheric reactor is operated at an elevated temperature to destroy cyanides, phosphorus, and phosphides present in the waste... | 09/03/2002 |
| 6419831 | Water purifier method Ozone is generated and combined with water. The combined water and ozone are then mixed to provide a substantially homogeneous mixture which subsequently is transported along a confined flow path having a length sufficient to provide substantially complet... | 07/16/2002 |
| 6402966 | Method and apparatus for processing biologically hardly degradable waste water capable of reducing ozone In a method for processing a biologically hardly degradable waste water including benzene ring materials, the waste water is oxidized by using ozone to produce oxalic acid. Then, the oxalic acid is reacted using a chemical reaction to produce oxalate. Fin... | 06/11/2002 |
| 6387281 | Processes and apparatus for treating sewage or like sludge There is disclosed a process for treating sewage or similar organic sludge to produce a pasteurized and dried product comprising the steps of: dividing the sludge into at least one first portion and at least one second portion; drying the first portion so that... | 05/14/2002 |
| 6383400 | Method for reducing nitrate and/or nitric acid concentration in an aqueous solution The present invention relates to a process to reduce the nitrate and/or nitric acid concentration of an aqueous solution--referred to as a denitration process--by means of a reaction with formic acid or formol wherein said reaction is carried out in heter... | 05/07/2002 |
| 6355179 | Decomposition of residual hydroxylamine by hydrogen peroxide treatment Decomposition of excess hydroxylamine is accomplished by bringing a hydroxylamine-containing wastewater stream into contact with hydrogen peroxide. Most preferably, the wastewater stream is at neutral pH (e.g., pH between 7-8) and at elevated temperature ... | 03/12/2002 |
| 6294097 | Method for treating waste water containing nitrate ions There is disclosed a method for treating waste water containing nitrate ions by subjecting the waste water to decomposition and oxidation to eliminate a harmful gas, the method including the steps of: (a) mixing a waste water containing 10 to 90% by weigh... | 09/25/2001 |
| 6274050 | Method for treatment of halogen-containing waste material A method for treatment of halogen-containing waste material, in particular PVC-containing waste material, is disclosed. The waste material is heated in a decomposition step in a reaction zone in a substantially closed system essentially without addition o... | 08/14/2001 |
