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7608191 |
Production of a fermentation product
A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation...
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7582444 |
Use of flocculating agents for separating the solid residue in hydrolysed fermentation substrates
Process for improving the separation efficiency of residual solid matter from the liquid phase of an aqueous acid hydrolysate of a naturally occurring polysaccharide comprising dissolved sugars,...
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7582215 |
Production of a fermentation product
A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation...
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7572382 |
Recycling hydrocarbon hydraulic stimulation fluid
Hydrocarbon stimulation fluids are often used to increase the permeability and productivity of oil and gas reservoirs. The fluid itself is made up of a mixture of hydrocarbons and various chemicals...
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7560028 |
Complex admixtures of clathrate hydrates in a water desalination method
Disclosed is a method that achieves water desalination by utilizing and optimizing clathrate hydrate phenomena. Clathrate hydrates are crystalline compounds of gas and water that desalinate water...
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7510660 |
Contaminant removal method for a body of water
Pollutants, such as heavy metals, phosphorus, and pathogenic organisms, are removed from water by adding a chemical coagulant to water within an enclosure. With mixing, coagulation and flocculation...
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7507344 |
Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid
A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The...
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7497955 |
Method of dewatering thin stillage processing streams
A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer...
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7481938 |
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...
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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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7445718 |
Removal of arsenic from drinking and process water
A method of removing arsenic and heavy metals from water using metal salt hydroxidegels is provided. The arsenic present in water is adsorbed onto the hydroxide-gels which can effectively be...
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7419603 |
Water treatment method
The present invention provides a physical water treatment (PWT) method and apparatus to treat liquid coolants. Electrodes ( 22, 24 ) are provided in a coolant stream ( 21 ), and an alternating...
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7407582 |
Combination activated sludge—ballasted flocculation process
A method and system for treating water or wastewater to remove both soluble BOD and suspended solids. The method entails directing first and second water or wastewater streams to a treatment system...
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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...
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7341668 |
Filter aid and method of using same for reclaiming water-based fluids used in metal working processes
A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working...
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7300589 |
Process for removing arsenic from aqueous streams
Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3...
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7267777 |
Method for the removal of contaminant metal ions from waste water
Method for removal of heavy metal ions from aqueous wastes, which are produced during electroplating and other industrial processes. The method comprises a precipitation process that is conducted...
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7244362 |
Water treatment by ballasted flocs and degreasing
The invention concerns the use of a coagulation-flocculation-decantation device for water treatment to degrease water inside the device itself so as to eliminate therefrom more than 20% of...
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7244360 |
Water treatment process
The present invention provides a physical water treatment (PWT) method and apparatus to treat liquid coolants. Electrodes ( 22, 24 ) are provided in a coolant stream ( 21 ), and an alternating...
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7189328 |
Method for extraction of dissolved trace materials from solution
A method for separating dissolved materials, including organic and inorganic solids and volatile constituents, from a liquid or aqueous solvent is disclosed. The method first extracts water from...
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7157008 |
Apparatus and process for water conditioning
A conditioning process and equipment are provided for removing hardness from water circulated in a system, such as an evaporative cooling system. A sidestream from such system is routed to a...
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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...
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7048860 |
Material for treating acidic waste water
This invention relates to a method for treating acidic waste water, particularly mine effluent, and to a solid waste water treating material useful for the method. This waste water treating...
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7048859 |
Method for treatment of aqueous streams comprising biosolids
A process is provided which can be used to clarify substantially aqueous streams and optionally separate biosolids, especially proteins, from food processing operations which comprises contacting...
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7033507 |
Method for removing metals from acid mine drainage
A method for removing metal contaminants from acidic mine wastewater using lignin derivatives, such as lignosulfonates and kraft lignin, an alkali coagulant, such as a lime compound, and an...
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7001525 |
Method for the treatment of water by ballasted flocculation and gravity separation with variable function modes
The invention relates to a method for treatment of water, permitting the physico-chemical treatment of water, including a ballasted flocculation stage using a granular ballast material with a...
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7001524 |
Method for removing scale causing chemicals in hot water systems
Hot water pipes, in areas with hard water, tend to fill with scale until they no longer pass enough water. De-scaling water pipes with acid is dangerous, expensive and damages the pipes. Ion...
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6966993 |
Method and plant for thickening sludge derived from water treatment by flocculation-decantation with ballasted floc
A method is provided for thickening sludge produced through a ballasted flocculation process. The sludge and granular material from the ballasted flocculation process are directed to a sludge...
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6919031 |
Method of treating water and wastewater with a ballasted flocculation process and a chemical precipitation process
The present invention is directed to a method and apparatus for the treatment of water and wastewater. In one embodiment, a method of treating water according to the present invention includes...
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6896815 |
Methods for removing heavy metals from water using chemical precipitation and field separation methods
A two-step chemical precipitation process involving hydroxide precipitation and sulfide precipitation combined with “field separation” technology such as magnetic separation, dissolved air...
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6893570 |
Metal removal process
The slag-only Vertical Flow Pond, which we have developed, is a passive treatment component capable of removing large concentrations of metals, especially manganese, from water to extremely low...
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6881346 |
Methods of treating phosphate in a body of water
Compositions including alum, a smectite material and optionally one or more of a buffer and an algaecide coating or additives for the clarification of bodies of water by removal of dissolved...
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6881231 |
Reduction in mineral salt deposition
A composition for reducing deposition of a mineral salt from an aqueous supersaturated solution onto a solid surface in contact with the aqueous supersaturated solution which composition comprises...
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6863826 |
Animal waste effluent treatment
Animal waste such as fecal material from swine, chicken, turkey, and cattle is converted into useful forms such as fertilizer, other types of soil builders, and even nutrient feed additives....
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6805802 |
De-watering process
Process muds are de-watered by the addition of high clay alumina. The clay is mixed with plant sludges or muds so as to cause flocculation of the solid particles, and separating the water from the...
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6797846 |
Fibrous crystal aggregates, preparation method thereof and use thereof
A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution....
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6716357 |
Method of removing phosphoric acid containting wastewater
A method of removing phosphoric acid contained in wastewater which comprises comprehensively immobilizing calcium or a compound thereof with a solid polymer optionally together with magnetite and...
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6689277 |
Treatment of liquids with ballasted flocculation
In the typical embodiments disclosed in the specification, a ballasted flocculation liquid treatment arrangement includes a mixing chamber in which liquid to be treated, flocculating agents and...
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6688946 |
Method and system for cleaning workpieces by wet blasting
An efficient method of cleaning various workpieces is the so-called wet blasting, by which the workpieces are exposed to a spraying of water with a content of hard macro particles. Optimally, this...
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6660167 |
Method for precipitating or flocculating substances out of solutions
In a method for precipitating or flocculating substances out of a solution, the solution is brought into contact with at least one ion exchange material having a surface provided with functional...
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6645386 |
Water treatment method by ballasted floc including a recycling of granular material
The invention concerns a flocculation-decantation method by ballasted flocs using a granular material and a step which consists in treating the sludge derived from flocculation-decantation in a...
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6623642 |
System for removing phosphorus from waste water
Phosphate-contaminated water passes through a domestic sewage treatment system, in which oxidation of the ammonium progresses far enough to cause a lowering of the pH to 5 or less. The water is...
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6607670 |
Process for rapid colloidal suspension removal
A method and apparatus is disclosed for very rapidly cleaning very small, colloidal particles from nuclear reactor water subjected to a high-energy waterjet cutting of metal using metal shot...
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6589427 |
Process for treatment of mixture of spent wash from distillery and black liquor from pulp and paper industry
This invention relates to a process for treating an effluent comprising a mixture of spent wash and black liquor, said process comprising mixing the effluent with a flocculating agent consisting of...
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6569342 |
Process for treating waters, soils, sediments and/or silts
A method is providing for treating waters, such as standing and flowing waters and waste waters, soils, sediments and/or silts. At least one alkaline earth metal peroxide is brought into contact...
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6555010 |
Solution mining process for removing metals from aqueous solution
A process is disclosed for obtaining colloid-forming metal particles from an aqueous mine waste solution containing that metal in ionic form. In accordance with this process, an aqueous mine waste...
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6533943 |
Process for the removal of oxidizing agents
A synthesized compound that is able to neutralize oxidizing agents such as nitrates from water systems, from ground surfaces and other sites. When contaminated water is passed through the...
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6478971 |
Process for removing sulfate from an aqueous salt solution
A simple, effective, cost-efficient method of precipitating sulfate in an aqueous salt solution and removing the precipitate from the solution. The steps of the method include diluting the solution...
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6447686 |
Rapid coagulation-flocculation and sedimentation type waste water treatment method
The present invention relates to a high speed coagulant-flocculant and sedimentation method for treating waste water, which permits a speedy treatment of waste water including stormwater runoff and...
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6416672 |
Removal of dissolved and colloidal silica
Small amorphous silica particles are used to provide a relatively large surface area upon which silica will preferentially adsorb, thereby preventing or substantially reducing scaling caused by...
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