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7611632 |
Method of conditioning mixed liquor using a tannin containing polymer
Disclosed is a method of conditioning mixed liquor in a membrane bioreactor (MBR) system comprising adding an effective amount of a tannin containing polymer to the mixed liquor. Also disclosed is...
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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...
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7594989 |
Enhanced thermal upgrading of heavy oil using aromatic polysulfonic acid salts
A method for upgrading heavy oils by contacting the heavy oil with a water-soluble aromatic polysulfonic acid salt and then thermally treating the contacted heavy oil. The polysulfonic acid salt...
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7563377 |
Method for removing iron deposits in a water system
A method and composition and system which for the oxidation, clean up, removal and control of iron and iron deposits in water and the removal of iron deposits and bacterial bio-films from surfaces...
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7537705 |
Method for treating feedwater
A method for treating feedwater is provided. The method includes steps of introducing a treatment composition into a feedwater stream to provide a treated feedwater stream containing scale...
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7531600 |
Water-in-oil polymer emulsion containing microparticles
A storage stable water-in-oil emulsion composition that includes 5% to 99% by weight of a water-in-oil emulsion polymer including a polymer or copolymer containing repeat units from an acrylamide...
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7524434 |
Controlled release cooling additive composition
Methods of treating aqueous coolants in open circulating water cooling tower systems are provided. The methods including placing a controlled release additive composition in contact with an open...
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7470330 |
Method for dissolving oilfield scale
A method of removing metal scale from surfaces that includes contacting the surfaces with a first aqueous solution of a chelating agent, allowing the chelating agent to dissolve the metal scale,...
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7407590 |
Method for removal of biofilm
The present invention provides a method for the removal of biofilm, flocculent bulked sludge or bulked biologically active sludge from an aqueous system. The method involves adding one or more...
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7404902 |
Method for treating water
A composition for treating water contained in enclosures, such as swimming pools, spas, whirlpool tubs and cooling towers, which includes at least one boron compound, cyanuric acid, at least one...
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7390415 |
Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes
Materials and a method are provided whereby polymers with least 0.5 mole % of the pendant group or end group containing —Si(OR″) 3 (where R″ is H, an alkyl group, Na, K, or NH 4 ) are used...
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7378477 |
Inorganic deposit inhibitors, in particular in oil wells, particularly in high pressure / high temperature conditions
The present invention concerns inorganic deposit inhibitors, and particularly of calcium carbonate and barium sulphate in oil wells. It also concerns certain copolymers particularly suitable for...
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7316787 |
Methods for controlling silica scale in aqueous systems
A method of controlling the deposition of silica containing scales and their adhesion to surfaces in contact with an aqueous system is disclosed which comprises adding to the aqueous system about...
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7285221 |
Composition for preventing of slime and method for preventing slime
A composition for preventing formation of slime which comprises a chlorine-based oxidizing agent, a sulfamic acid compound, one of an anionic polymer or a phosphonic acid compound and a process for...
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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...
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7238287 |
Method for providing safe, clean chlorinated recreational water
A solid formulation for use with sodium chloride and a chlorine generator to provide safe, clean chlorinated recreational water. The formulation comprises a chlorine stabilizing agent and a...
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7204937 |
Metal oxides dispersant composition
This invention relates to metal oxides dispersant compositions comprising (a) certain a metal oxides dispersant, and (b) an oxime. The invention also relates to a process for dispersing metal...
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7186394 |
Retarding agents for preparing purified brine
The invention relates to a process to produce brine of improved purity wherein a salt source, contaminated with sulphate ions and alkaline (earth) metal ions, is dissolved in water in the presence...
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7179384 |
Control of cooling water system using rate of consumption of fluorescent polymer
A method to control a cooling water system based on the rate of consumption of fluorescent polymer is described and claimed. The method includes providing a cooling water system and a water...
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7141174 |
Modified amine for boiler water treatment
The present invention provides a method of treating boiler and condensate water by the addition of an effective amount of a hydroxyamine-acid ester treatment reagent or an all-in-one treatment...
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7115201 |
Method of treating mine drainage
A method of treating mine drainage water including the step of adding a scale control agent to the mine drainage water and, optionally, adding an oxidizing agent to the mine drainage water and/or...
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6932909 |
Method of treating mine drainage
A method of treating mine drainage water including the step of adding a scale control agent to the mine drainage water and, optionally, adding an oxidizing agent to the mine drainage water and/or...
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6905605 |
Method for inhibiting the plugging of conduits by gas hydrates
A method for inhibiting hydrate formation in a hydrocarbon flow by adding an amount of a dendrimeric compound effective to inhibit formation of hydrates at conduit temperatures and pressures, and...
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6881244 |
Method and device for preventing deposits in steam systems
The present invention relates to a method for preventing the deposition of contaminants in steam systems. In a method of this type, deposits are prevented in a simple and economic manner by...
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6860241 |
Fuel filter including slow release additive
This invention relates to a fuel filter for use with internal combustion engines. The fuel filter includes a fuel additive that can be released into fuel. The rate of release for the fuel can be...
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6814873 |
Method of preventing or reducing aluminosilicate scale in a bayer process
Materials and a process are provided whereby polymers with the pendant group or end group containing —Si(OR″) 3 (where R″ is H, an alkyl group, Na, K, or NH 4 ) are used to control...
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6797177 |
Process for inhibiting scale and fouling on the metal surfaces exposed to an aqeuous system
This invention relates to a process for inhibiting scale and fouling on metal surfaces exposed to an aqueous system, particularly a circulating aqueous system. The process comprises adding glutamic...
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6695968 |
Removal of water solubilized organics
Methods and compositions for removing organics solubilized in a water-like fluid (WSO), such as the water produced in connection with the production of hydrocarbons from subterranean formations,...
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6656365 |
Process for preventing formation of scale
A process for preventing formation of scale which comprises adding, into a water system in which ozone is used for disinfection, a polymeric scale inhibitor having a high molecular weight which...
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6645400 |
Corrosion control utilizing a hydrogen peroxide donor
The present invention describes an innovative means of inhibiting corrosion of metals which experience active-passive transition in contact with an electrolyte. This invention incorporates hydrogen...
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6641740 |
Method for combating hard water and scale by using algins
The deleterious effects of metal ions in water, for example water hardness and formation of deposits, may be combated by application of an algin, for example alginic acid or a salt of alginic acid,...
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6638431 |
Formulation and method for treating wetted surface elements in climate control systems
A formulation and method to treat and control microbial growth present in the water of climate control systems such as air conditioner air handlers, dehumidifiers, and humidifiers, which...
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6613899 |
Method for preventing deposits in oil extraction
Carboxyl-containing fructans such as carboxymethylinulin can be successfully used to prevent deposition of scale composed of, for example, calcium, barium and strontium salts of sulphuric acid and...
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6587753 |
Use of control matrix for boiler control
Described and claimed is a method of controlling a boiler in which control is based on information from a control Matrix applicable to the specific operating parameters of said boiler. This method...
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6537457 |
Method for treating circulating water from an enamelling line
Polyaspartic acid and, optionally a non-ionic surfactant, are used to treat circulating water from a paint shop.
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6533958 |
System for controlling microbial fouling
A method of controlling microbial fouling is provided. The method controls microbial fouling using hypobromous acid, HOBr, formed by the reaction between an aqueous solution of alkali or alkaline...
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6514458 |
Method for removing microbes from surfaces
Method for removing microbial biofilm from surfaces in contact with an aqueous system is disclosed, which comprises adding to the system a treatment comprising low foaming, ethoxylated anionic...
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6506258 |
Process for controlling scale in the sugar process
The deposition of calcium salts, including calcium carbonate and calcium oxalate and the formation of foam, during the evaporation of sugar streams can be prevented or restricted by ding 0.1-200...
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6461518 |
Method for inhibiting the formation and deposition of silica scale in water systems
This invention relates to a method for inhibiting the formation and deposition of silica scale in water systems. The method includes treating the water in such water systems with an effective...
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6436154 |
Use of dodecylbenzene sulfonic acid or salt as a scale inhibitor
The formation of scale on equipment surface in contact with sodium alkali containing brines is inhibited by the addition of an alkylbenzene sulfonic acid or salt thereof to the brines.
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6325938 |
Method of cleaning membrane assembly with detergent
A method for cleaning separating membranes uses a uniquely formulated detergent. The detergent includes a percarbonate-containing, material, existing in the condition in which hydrogen peroxide is...
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6241898 |
Method for inhibiting microbial adhesion on surfaces
A treatment for inhibiting the microbial adhesion on surfaces in contact with an aqueous system is disclosed, which comprises adding to the system the combination of an alkylsulfosuccinate...
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6237670 |
Treatment of thermoplastic materials with chelating agents, and related products
The metal content of a thermoplastic composition containing an undesirably high concentration of metal can be reduced by adding to 100 parts by weight of the composition at least about 0.3 parts by...
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6231768 |
Rheology modification of settled solids in mineral processing
The present invention comprises a method for reducing the viscosity of the settled mud or underflow of a raked thickener thereby reducing the torque necessary to move the rake blade through the...
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6210586 |
Method of dispersion with low molecular weight structured polymers
The present invention relates to novel low molecular weight, structured polymer compositions. The invention also relates to methods for inhibiting scale formation, precipitation or deposition;...
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6210585 |
Fatty acid free latex polymer flocculants
A method of separating solids and preventing foaming in an industrial water system comprising adding to fluids in the industrial water system an effective amount of a low foaming latex polymer...
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6165368 |
Method of controlling deposition of foulants in processing equipment used to process products streams produced by the dehydrogenation of aliphatic hydrocarbons
A method for controlling the deposition of foulants such as polynuclear aromatic compounds on the internal surfaces of equipment in a processing train used to process a product stream obtained by...
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6162391 |
Scale inhibition agent and method for using same
An agent for preventing scale formation and a method for preventing scale formation include a polymer which has at least 50% of N-vinyl formamide units or N-vinyl acetamide units and a phosphorus...
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6153106 |
Method for inhibiting the formation and deposition of silica scale in water systems
The present invention relates to a method for inhibiting the formation and deposition of silica scale in water systems. The method includes treating the water in such water systems with an...
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6146538 |
Method of inhibiting scale formation
The present invention relates to the addition of an alkali salt form or a precipitated alkali salt form of a PESA, polymaleic acid or mixture thereof, which is added, directly and/or indirectly, to...
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