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7597810 |
Process for production of suspensions, solutions, or dispersions
The present invention provides a method for efficiently filtering slurry suspensions in a vessel including a nozzle flange near the vessel, when solids in the slurry suspensions being treated in...
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7497954 |
Apparatus for separation of water from oil-based drilling fluid and advanced water treatment
An apparatus for separating water from oil-based drilling fluid includes an separation tank, a chemical treatment apparatus having one or more de-oiling polymer preparation tanks, and a dissolved...
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7468137 |
Wastewater treatment process
A wastewater treatment process for treating wastewater comprising a water-based dispersion containing a surfactant, a colorant and silica, as well as other solid matter, wherein the wastewater is...
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7419602 |
Selenium removal from water
A process for removing selenium from a water stream, in particular a waste water stream, by: 1) the addition thereto of a ferric salt, followed by 2) the addition of a cupric salt and pH adjustment...
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7371328 |
Method for treating hog and animal waste
An animal treatment method comprises flushing the animal waste from a barn to a holding tank where the waste is mixed with an alkaline solution to kill pathogens. After neutralization, the solution...
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7344647 |
Process for treating waste water to remove contaminants
Recycled waste water is treated to remove contaminants and produce a sludge cake with a high percentage of solids and to produce a treated recycled waste water that can be discharged into a...
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7297278 |
Methods for removing metals from water
A device for separating metal components from a colloidal suspension or solution uses a vessel for holding the colloidal suspension or solution. A membrane impermeable to the selected metal...
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7208555 |
Process for preparing polyvinylidene fluoride copolymer
The present invention provides a polyvinylidene fluoride copolymer capable of forming a uniform film, a solution of the copolymer and a thin film comprising the polyvinylidene fluoride copolymer....
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7156999 |
Methods and apparatus for treating animal manure
A method of treating animal manure yielding a final liquid fraction and solid fractions whereby the final liquid fraction has a suspended solids (SS) content of about 3 g/L or lower comprising...
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7147755 |
Ultrasonic transducer system
The method is for treating a liquid or slurry with an ultrasonic energy. A movable endless member is provided that is permeable to a liquid. A transverse foil is disposed below the member and...
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7131370 |
Centrifugal separating device and method of clarifying must during the production of wine
The invention relates to a centrifugal separating device and method for clarifying must during wine production, especially with a separator ( 7 ). Gas and/or gelatine and/or other additives are...
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7105094 |
Method for the removal of heavy metals from acidic wastewater and chemical solutions
A method which uses a process reactor having three separate reaction stages to remove high concentrations of heavy metals from acidic wastewater and chemical solutions. During each of three stages...
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7048854 |
Apparatus for the removal of heavy metals from acidic wastewater and chemical solutions
An apparatus which uses a process reactor having three separate reaction stages to remove high concentrations of 3000 mg/l heavy metals from acidic wastewater and chemical solutions. During each of...
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7037432 |
Buoyant media flotation
A clarification system for fluids in which particles are separated from the fluid by flotation and in which the buoyant media inducing the flotation is recycled. Flotation can be assisted by a...
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6896816 |
Chemical treatment method
A method and apparatus is described for separating contaminants from waste material including waste water derived from a chemical processing or manufacturing plant, such as the waste water from a...
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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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6872312 |
Method of using high molecular weight water soluble polymers in membrane bioreactor systems
An activated sludge process for the clarification of wastewater comprising introducing the wastewater into a reactor where microorganisms consume organic material in the wastewater to form a mixed...
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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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6824691 |
Process for treating liquid manure
Process for treating liquid manure, comprising the introduction of homogenized liquid manure into a tank, into which are introduced some polymers/copolymers that bring about an interchange to...
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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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6716354 |
Methods of treating water using combinations of chlorine dioxide, chlorine and ammonia
Raw water is treated with chlorine, chlorine dioxide and ammonia in various stages as it proceeds from raw water acquisition through clarification (e.g., coagulation, flocculation, sedimentation,...
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6709527 |
Treatment of sugar juice
A process for treating impure cane-derived sugar juice comprises subjecting, in a clarification stage, the juice to microfiltration/ultrafiltration to decrease the levels of suspended solids,...
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6673245 |
Use of surface-active agents in the impurity removal process from solutions containing acetic derivatives using nano-filtration with membranes, in a process to obtain cellulose acetate
This invention refers to the use of surface-active agents as a treatment of effluents containing acetic derivatives by tangential filtration characterized from aqueous solutions containing between...
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6632327 |
Process for treating spent, waste, alkaline digestion liquor from paper pulping operations and product
A water soluble, surface active, polymeric agent is mixed with digestion liquor, preferably with an additional surface active defoamer coagulant agent prior to or during acidification of the...
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6627085 |
Treatment of brine to remove metals and silicon therefrom
Disclosed is a process for reducing the amount of silicon in brine. More specifically the silicon content of the brine is reduced to 1 ppm or less by using low caustic excess. The disclosed process...
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6610209 |
Use of polymers containing vinylamine/vinylformamide for the treatment of food processing wastewater
A method for clarifying food processing waste water containing suspended solids comprising (iii) adding to the waste water with an effective amount of at least one vinylamine polymer having a...
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6602024 |
Environmental remediation of dense organic contaminants using polyaphron treatments
A novel method that promotes upward mobilization of dense nonaqueous-phase liquid contaminants. In one embodiment, the method comprises the steps of: ( 1 ) injecting a treating agent (e.g., a...
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6576594 |
Water treatment process
A method of controlling algae in a municipal water plant including the step of adding an algicide-flocculant solution including 25-50 wt % acidic flocculent, 0-10 wt % polymer flocculant aid, an...
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6535795 |
Method for chemical addition utilizing adaptive optimization
The present invention provides a method for chemical addition utilizing adaptive process control optimizations having a combination of expert system(s), neural network(s) and genetic algorithm(s).
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6423228 |
Treating fluorine waste water containing organic matter, phosphor and hydrogen peroxide
A calcium carbonate mineral is placed in a lower portion of a second water tank, while sludge precipitated in a sixth water tank is returned to an upper portion. A blower and an air diffusion pipe...
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6420312 |
Water treatment composition
An algicide-flocculant solution for use in treating raw water in a municipal water plant to control algae, the algicide-flocculant solution including 25-50 wt % of an acidic flocculant, 0-10 wt %...
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6369182 |
Cationic latex terpolymers for wasterwater treatment
This invention is directed to a cationic terpolymer comprising (a) a first monomer unit selected from acrylamide and methacrylamide; (b) a second monomer unit selected from dimethylaminoethyl...
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6325936 |
Process for treating waste water containing a resin
A process for treating waste water containing a resin is disclosed, which includes the steps of adding a polyamine compound to waste water containing at least a resin to coagulate at least...
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6319409 |
Process for treating waste water containing cutting oil
A process for treating waste water containing cutting oil is disclosed, which includes the steps of adding a cationic organic compound to waste water containing used cutting oil to coagulate...
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6268469 |
Solid-liquid separation method of fluorine-containing polymer particles
Coagulated particles having a low water content are separated and recovered from an emulsified dispersion of fluorine-containing polymer particles. A solid-liquid separation method comprising: a...
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6261460 |
Method for removing contaminants from water with the addition of oil droplets
A method for removing a contaminant from water includes mixing droplets of a substantially non-water soluble oil with water to combine with the contaminant. The oil can include polar or ionic...
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6261459 |
Process for the elimination of livestock wastewater odors and wastewater treatment
An improved process for the treatment of water, selected from livestock wastewater and a livestock water stream, which process comprises adding to said water a composition comprising a sufficient...
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6251277 |
Method and device for purifying protein containing waste water
The invention relates to a method for purifying protein containing waste water, In which a) a first insoluble material is caused to form in the waste water, b) the mixture obtained in step a) is...
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6240585 |
Method of treating wastewater from industrial laundries
Wastewater from a commercial laundry is treated by adding coagulant directly to the wastewater from each load of items washed. The amount of coagulant is administered using a controller. The...
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6238564 |
Sludge treatment method
The present invention relates to a treatment method of sludge, comprising adding and mixing carbide in powder and/or particulate (carbon-containing materials, being porous and of a light weight,...
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6221254 |
Purification of liquid streams using carbon dioxide
A method of purifying an aqueous liquid stream is provided, wherein the liquid stream is pressurized and contains proteinaceous materials, such as blood, and suspended solids, comprising the...
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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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6177571 |
Method for removing heavy metals from organic compounds
A method for removing heavy metals, selected from palladium, tin and nickel, from heavy metal complexes with thiazole compounds in aqueous or alcoholic solution, by precipitation as sulfides,...
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6165369 |
Stable suspensions of solids in metal salt solutions for use in water treatment
Stable suspensions can be made from acidic metal salt solutions and finely divided acid-insoluble solid particles that have a particle size of less than twenty-five microns, preferably less than...
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6146465 |
Methods for clarifying sugar solutions
An improved process for clarifying sugar syrup in the flotation system of a sugar making operation. Neutral phosphate-based compounds are added to the flotation system to aid in clarifying the...
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6126837 |
Method for removing suspended particles using mannich-derived polyethers
Methods for removing suspended particles from a solution are disclosed. These methods generally comprise adding to the solution to be treated an effective amount of a composition comprising a...
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6117333 |
Removal of hydrocarbons, mercury and arsenic from oil-field produced water
A process is disclosed which involves removing hydrocarbons, arsenic and mercury from wastewater produced in oil and gas fields. An oxidant, ferric ions, and flocculent are sequentially added to...
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6113797 |
High water recovery membrane purification process
Disclosed is a two-stage high pressure high recovery process utilizing two reverse osmosis membrane systems intended to provide very high overall water recoveries from contaminated inorganic...
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6082548 |
Mobile soil treatment apparatus and method
An apparatus for treating contaminated soil is disclosed. The apparatus includes a reactor vessel for holding a volume of water which is subdivided into a first chamber and a second chamber. The...
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6077433 |
Process for simultaneous extraction of dispersed and dissolved hydrocarbon contaminants from water
A new process for simultaneous extraction of dispersed and dissolved hydrocarbon contaminants from water. The process is based on the principle of injecting natural hydrocarbon gas to the water...
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