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| Number | Title | Issue Date |
| 7967989 | Groundwater recharging wastewater disposal method A sulfurous acid treated wastewater disposal method employing soil aquifer treatment (SAT) for artificial recharge of groundwater through infiltration basins allowing fully or partially-treated sewage effluent to infiltrate into the soil and move down to the groundw... | 06/28/2011 |
| 7666309 | Sprayable agricultural compositions and method A composition including an aqueous solution of calcium polysulfide and an amount of a precipitation preventing compound effective to reduce or eliminate precipitation of the calcium polysulfide at low concentrations. The precipitation preventing compound is selected... | 02/23/2010 |
| 7601266 | Method of promoting unrestricted flow of irrigation water through irrigation networks A biofilm reducing agent (BRA) and a mineral deposit distorting agent (MDDA) are admixed to irrigation water in amounts sufficient to substantially eliminate biofilm formation in the emitters (14) of an irrigation system (10) and produce amorphous mine... | 10/13/2009 |
| 7497953 | Water treatment apparatus and method An automatic, self-regulating method of water treatment for use in water circulating towers in which water is evaporated, and make up water is added, with components which synergistically function to cut chemical, energy, water, corrosion, pollution, and maintenance... | 03/03/2009 |
| 7399366 | Product and processes for preventing the occurrence of rust stains resulting from irrigation systems using water containing iron ions and for cleaning off rust stains resulting from using said irrigation systems Several products and processes for preventing the occurrence of rust stains resulting from irrigation systems using water having iron ions, such as well water, and for cleaning off rust stains resulting from the use of said irrigation systems are disclosed. In one e... | 07/15/2008 |
| 7311158 | Silicate-containing additives for well bore treatments and associated methods The present invention relates to methods and compositions for use in subterranean operations. More particularly, the present invention relates to additives comprising one or more silicates used to treat tar resident in a well bore, and methods of use. In one embodim... | 12/25/2007 |
| 7300585 | Method of treatment of effluent stream A method for treating an effluent stream containing material which it is desired to remove from the effluent stream comprises treating the effluent stream with a solution of an acid and a first polymer to reduce the pH of the thus-treated stream to a range of about ... | 11/27/2007 |
| 7282156 | Apparatus & method for cleaning cooling tower recirculating water An apparatus and method for removing water and debris from a cooling tower basin, discarding debris and returning clean water to the basin. ... | 10/16/2007 |
| 7275644 | Apparatus and method of separating and concentrating organic and/or non-organic material An apparatus for segregating particulate by density and/or size including a fluidizing bed having a particulate receiving inlet for receiving particulate to be fluidized. The fluidized bed also includes an opening for receiving a first fluidizing stream, an exit for... | 10/02/2007 |
| 7273558 | Method and device for reducing scale formation and/or corrosion in systems which conduct liquids The invention relates to a method and a device for reducing scale formation and/or corrosion in systems which conduct liquids or are in contact with liquids. According to the invention, this is achieved without reducing the quantity of hardness constituents containe... | 09/25/2007 |
| 7272531 | Aggregation of asset use indices within a process plant A method of monitoring an entity within a process plant wherein the entity includes a plurality of lower level entities, includes acquiring a plurality of use indices, acquiring a plurality of weighting values, and creating an aggregate use index from a combination ... | 09/18/2007 |
| 7270744 | Automated low-volume tangential flow filtration process development device An automated process development device providing flexibility and accuracy for the investigative development of tangential flow filtration (tff) processes and used for evaluating the process parameters of a laboratory scale tff process with an eye towards developing... | 09/18/2007 |
| 7267778 | Device and process for treating a liquid medium A device for treating liquid medium has an ultrasound emitter located relative to a compartment of a container holding a liquid medium and a microbubble emitter located relative to the compartment. The ultrasound emitter emits high-frequency ultrasound between about... | 09/11/2007 |
| 7252769 | Use of cerium salts to inhibit manganese deposition in water systems Methods to control manganese deposition in an aqueous system, which include introducing a cerium-containing composition, and optionally another deposit control agent, to the aqueous system, are described. Also described, are cerium-containing compositions that promo... | 08/07/2007 |
| 7250110 | Electro-kinetic water conditioning A method for treating hard water comprising the steps of flowing water containing suspended colloidal mineral particles through a confined treatment zone, applying an electrical potential across the flowing water to cause electrical current to flow through the water... | 07/31/2007 |
| 7221988 | Creation and display of indices within a process plant A process control system uses an asset utilization expert to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the process control functional areas, the maintenance f... | 05/22/2007 |
| 7206646 | Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control A process control system uses a data collection and distribution system and an asset utilization suite to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the proces... | 04/17/2007 |
| 7201016 | Refrigerant supply apparatus A refrigerant supply apparatus for supplying a refrigerant to a cooling target. The apparatus includes a refrigerant supply channel through which pure water as the refrigerant is supplied to the cooling target, an impurity removing unit disposed in an impurity remov... | 04/10/2007 |
| 7198722 | Process for pre-treating and desalinating sea water Water containing dissolved salts, such as calcium sulfate, calcium chloride, magnesium sulfate, magnesium chloride, sodium carbonate, sodium chloride, sodium sulfate, calcium bicarbonate, and mixtures thereof, is treated to reduce the concentration of those salts. A... | 04/03/2007 |
| 7195782 | Concentrated aqueous bromine solutions and their preparation Described is a process of producing a concentrated liquid biocide formulation. Mixed together are (a) bromine chloride or bromine and (b) an aqueous solution of alkali metal salt of sulfamic acid having a pH of at least about 7, in amounts such that (i) the active b... | 03/27/2007 |
| 7192218 | Direct recharge injection of underground water reservoirs An underground porosity water storage reservoir minimizes the impacts on surface uses of the reservoir site. Furthermore, a method of operating an underground porosity storage reservoir minimizes damage to the reservoir due to injecting sediment-laden water or water... | 03/20/2007 |
| 7185516 | Washwater neutralization system for glass forming line A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment. The neutralization system introduces a base solution to a washwater solution when the pH of the washwater solution contained in a cl... | 03/06/2007 |
| 7186345 | Systems for water purification through supercritical oxidation Supercritical water (SCW) systems and methods using the properties of supercritical water to allow a raw water stream including water and a contaminant to be purified. A supercritical water oxidation (SCWO), water purifier may generally include water and oxidizer (s... | 03/06/2007 |
| 7182872 | Struvite crystallization The present invention provides a method and apparatus for removing phosphorus from phosphorus containing waste. In one embodiment, the method is preferably carried out by contacting the phosphorus containing waste with a non-cellular membrane and precipitating phosp... | 02/27/2007 |
| 7143778 | Chemical feeder A feeder device for introducing treatment chemicals into a recirculating water stream from a swimming pool. The feeder device includes a housing having a top and bottom portions. A funnel-like hopper having sidewalls and an open bottom forms the inside of the top po... | 12/05/2006 |
| 7134152 | Adaptable, low cost air gap and flow control A kitchen sink installation includes a plurality of adjacent kitchen sinks having drain tailpieces, a manifold pipe mounted substantially horizontally under the sinks and having a length and a plurality of discrete openings along its length, each of the openings fac... | 11/14/2006 |
| 7135118 | Method for treatment against corrosion and depositions in domestic supply water stallations The invention concerns a method for preventive treatment of corrosion, oxidation and/or depositions in domestic supply water distribution circuits, comprising steps which consist in: a diagnosis including an analysis of the state of corrosion, oxidation, depositions... | 11/14/2006 |
| 7124584 | System and method for heat recovery from geothermal source of heat A system is disclosed for generating energy from a geothermal heat source. The system includes a fluid injection system configured for injecting fluid into a subterranean formation and a fluid extraction system configured for extracting fluid from the subterranean f... | 10/24/2006 |
| 7122116 | Water treatment system A water treatment system that includes a water storage tank fluidly connected to a water source through an inlet, a chlorination device fluidly connected to the water storage tank and the inlet, a media filter vessel at least partially contained within the water sto... | 10/17/2006 |
| 7122148 | Cooling water scale and corrosion inhibition A methods of the present invention for inhibiting silica scale formation and corrosion in aqueous systems where soluble silica residuals (SiO2) are maintained in excess of 200 mg/L, and source water silica deposition is inhibited with silica accumulations... | 10/17/2006 |
| 7097771 | In-tank time release ion exchange resin containing a fuel additive The invention provides a device containing an ion-exchange resin to which is chemically bound a fuel additive material which will gradually be released from the resin into a fuel in which the device is placed. ... | 08/29/2006 |
| 7087189 | Multifunctional calcium carbonate and calcium phosphate scale inhibitor The present invention is directed a multifunctional polymer capable of inhibiting both calcium carbonate and calcium phosphate scale. The multifunctional polymer contains at least one monomer unit from each of four groups: dicarboxylic acids, mono-carboxylic acids, ... | 08/08/2006 |
| 7087251 | Control of biofilm A method of eradicating or at least substantially reducing biofilm on a surface in contact with water, or which comes in contact with water, which method comprises introducing into such water a concentrated aqueous biocidal composition formed from bromine chloride a... | 08/08/2006 |
| 7077563 | Deposition sensor based on differential heat flux measurement An apparatus and method for the monitoring and measurement of chemical and/or biological deposition in heat exchangers and other fluid processing vessels. The new and original sensing system includes at least two hollow fluid vessels conductively mounted across a co... | 07/18/2006 |
| 7052600 | Apparatus for treating water The inventive method and apparatus for treating water and water systems. The apparatus and method also assures the retention of calcium in drinking water provided to an animal by suppling water to a water feed line which is connected to a drinking device, oxidizing ... | 05/30/2006 |
| 7037434 | Integrated water treatment and flue gas desulfurization process A water stream containing hardness minerals is subjected to a water treatment process using an alkali agent to precipitate the hardness minerals and to produce a softened water stream is used to create an integrated water treatment and flue gas desulfurization proce... | 05/02/2006 |
| 7029202 | Method for treating metal-contaminated water and soil A method for removing metal contaminants from water uses lignin derivatives, such as lignosulfonates and kraft lignin, a coagulant, such as a metal salt, and a pH-increasing composition. The lignin derivative is dispersed in the contaminated water, the coagulant is ... | 04/18/2006 |
| 7025493 | Chemical supply system and chemical mixing apparatus A chemical supply system includes at least two supply pipes for supplying at least two different chemicals; a mixing unit connected to the supply pipes for mixing at least two different chemicals to form a chemical mixture, an exhausting unit for exhausing the chemi... | 04/11/2006 |
| 7001531 | Sustained release coolant additive composition A coolant additive composition comprising a sustained release component and an additive component, the additive component is effective to provide at least one benefit to a coolant when released into the coolant, the sustained release component includes a polymeric m... | 02/21/2006 |
| 6998049 | Method for preventing the formation of biological films The invention relates to a method for improving the performance of filtration devices by adding P- and/or N-containing compounds to the medium to be filtered. ... | 02/14/2006 |
