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7534354 |
Combined degassing and flotation tank
A combined degassing and flotation tank for separation of a water influent containing considerable amounts of oil and gas. A rotational flow is created in the tank which forces the lighter...
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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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7481937 |
Methods and systems for treating wastewater using ozone activated flotation
Various methods and systems are provided below for the treatment of wastewater. According to various embodiments, treatment of wastewater is accomplished using the oxidative power of ozone gas and...
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7468136 |
Grit trap
A vortex grit trap comprising a generally vertically extending tank of circular cross-section including a separation zone having an inlet and an outlet for liquid flow to and from the tank, and in...
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7416670 |
Dual-cell mechanical flotation system with intermittent skimming
It has been discovered that a mechanical flotation system ( 10 ) having only two cells ( 18, 20 ) can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably...
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7374689 |
System and method of gas energy management for particle flotation and separation
A system for separating particles from a contaminated liquid stream includes an apparatus for mixing the liquid with one or more separation enhancement additives and gases. A pressure reducing...
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7361282 |
Separator of floating components
A buoyant component separator is disclosed for removing at least some floating contaminants from fluids. The component separator may be used with a marine engine exhaust system to reduce...
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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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7300588 |
Wastewater separator and method of using same
A method for pretreating a wastewater stream containing grease and food particles before the stream enters a sewer includes the steps of directing said wastewater stream to a separation area;...
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7270754 |
Apparatus and method for processing of animal manure wastewater
According to the present invention, there is provided a wastewater processing apparatus and method comprising a rotating filter thickener ( 20 ) receiving and filtering a wastewater mixture and...
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7258800 |
Electrocoagulation waste water batch tank treatment system
A waste water treatment system and process for treating waste water received in a batch tank. The waste water is discharged in a headwork screen for removing large solids in the water. The solids...
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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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7175768 |
Method and device for clarification of liquids, particularly water, loaded with material in suspension
A method is disclosed for clarifying, by flotation, waters contaminated with suspended matter, wherein the clarification treatment takes place in two successive steps implemented in a single...
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7157007 |
Vertical gas induced flotation cell
A system for separating oil and/or oily coated solids from an oily water mixture. The system includes an upright vessel having an inlet for introducing oily water in a horizontal pattern. The...
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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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7056441 |
Apparatus and method for processing of animal manure wastewater
According to the present invention, there is provided a wastewater processing apparatus and method comprising a rotating filter thickener ( 20 ) receiving and filtering a wastewater mixture and...
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7034193 |
Method for purifying spent acid
A method for purifying a spent acid catalyst from an acid catalyzed chemical reaction that generates a mixture of a product, spent add and tar, includes the steps of separating the mixture of...
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7033506 |
Device and method for water treatment by foaming
The invention relates to apparatus for treating water by skimming, the apparatus comprising:
a reaction chamber ( 8 ); injector means ( 4 ) for delivering the water for treatment via an...
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6998056 |
Process and device for aerating a liquid with gas
Apparatus and process for aerating a liquid with gas, the apparatus comprising a pressure vessel including a lower section containing the liquid and an upper section containing a volume of the gas....
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6974542 |
Method and apparatus for removing foaming contaminants from hydrocarbon processing solvents
A column of solvent containing foaming contaminants is provided. Gas is educted into the solvent in the column so as to generate foam in the column. The gas is educted into the column independently...
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6960301 |
Leachate and wastewater remediation system
A compact portable modular wastewater treatment system which integrates several processing technologies to provide a substantially purified water source. A wastewater stream is sent through an...
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6949195 |
System and method for removing contaminants from liquid
A method for removing contaminants from a liquid includes filtering objects of a relatively large dimension. The liquid is then mixed with additives to adjust the chemistry of the liquid. The...
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6915908 |
Method of decontaminating soil
A method for decontaminating soil containing inorganic contaminants having a degree of liberation of at least 60%, comprising the steps of removing from a coarse fraction at least a portion of...
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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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6893572 |
Solids accumulating flotation separator
The invention is directed to a method for flotation separation. The method has the steps of feeding an influent stream containing liquids and solids to a vessel, while removing clarified liquid at...
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6849189 |
Horizontal reaction chamber comprised of nested, concentric tubes for use in water purification
The present invention includes a horizontal foam fractionation protein skimmer for removing organic waste material (dissolved organic compounds) from organic loaded water. The protein skimmer...
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6818799 |
Process for removing tar from spent acid
There is a process for removing by-product tar during the manufacture of isopropyl alcohol. The process comprises the following: a) reacting propylene with concentrated sulfuric acid and water to...
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6811705 |
Wastewater treatment system
A wastewater treatment system for use on marine vessels or land-based applications treats wastewater by solids separation and oxidation. The system includes a solids separation tank, an oxidation...
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6802978 |
Process for environmental recovery in urban regions
A process of environmental including a micro application of floating/coagulating material in the watercourse, followed by micro flocculation to aggregate particles in suspension downstream,...
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6749757 |
Method and apparatus for removing hydrocarbons from water
An improved production water treatment system and method are disclosed. The treatment apparatus includes a vertically oriented vessel with tangentially disposed injection nozzles including one or...
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6730232 |
Process and device for separating impurities from a suspension by flotation
Apparatus and a process for separating impurities from a suspension in a flotation cell, including an aeration device for aerating a liquid with a gas until the liquid is saturated. An expansion...
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6676833 |
Apparatus for removing grit and grease from water
A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a...
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6663782 |
System and method to treat livestock waste
A method for treating livestock wastewater includes directing screened wastewater to a hydrocyclone/separation tank system. The hydrocyclone directs the wastewater stream in a generally helical...
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6649067 |
Flotation method
A flotation method in which the gas bubbles for inducing flotation of the solids in the liquid are produced by a chemical reaction, for example a decomposition of hydrogen peroxide to oxygen and...
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6599418 |
Apparatus for treating water or wastewater
An integrated apparatus that contains both the gravity settling mechanism and the dissolved-air floatation (DAF) mechanism in a compensating manner is provided. The said apparatus comprises a...
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6579461 |
Method for preparing or purifying aqueous solutions of a tertiary amino-oxide
The invention relates to a process for the reprocessing respectively purification of aqueous solutions of a tertiary amine oxide, particularly of process waters, e.g. used precipitation baths,...
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6562240 |
Mixing apparatus
A method and apparatus for mixing a first material and a second material is described in which the first material comprises a mixture of two or more dissimilar components which it is desired to...
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6551516 |
Methods for removing grit and grease from water
A grit-and-grease removal system includes a grit channel for degritting water by promoting settling of grit to the bottom of the channel, the grit being removed from the bottom of the channel by a...
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6544383 |
Flotation deinking process
The removal of inks from a pulp fiber slurry is accomplished by use of a combination of (1) a polyester obtained through reaction between di and/or tricarboxylic acids and/or anhydrides thereof and...
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6524486 |
Microalgae separator apparatus and method
An apparatus and method for separating microalgae from water without rupturing cells. The method comprises the steps of flocculation, flotation and dehydration. Microalgae suspension from a...
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6491826 |
Systems and methods for separation of organics from fluids
A system for facilitating the separation of materials dissolved from a fluid. The system includes an apparatus for separating proteins and other organics from fluid is provided. The apparatus...
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6436295 |
Protein skimmer
A protein skimmer for removal of protein contaminates from protein contaminated water. An injector is used for spraying protein contaminated water into a water bubble chamber. The spraying motion...
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6425982 |
System for removing bleed-throughs from old corrugated container fiber pulp
A system for removing bleed-through contaminants from OCC fiber pulp includes a plurality of primary flotation cells, with each primary flotation cell having an inlet, an accept outlet and a reject...
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6413430 |
Method and device for demulsifying an oil-containing aqueous emulsion
A process for separation of an oil-containing aqueous emulsion includes mixing the oil-containing aqueous emulsion with carbon-dioxide and subjecting the emulsion and carbon dioxide for a specified...
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6413366 |
Method and device for flotation of pollutants from an aqueous fibrous material suspension
Process and device for the flotation of contaminates out of an aqueous fibrous suspension using a foam. The process includes creating the foam, introducing the fibrous suspension into the foam,...
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6368508 |
Method and apparatus for single reactor wastewater treatment system
A method and apparatus for biologic treatment of wastewater using both aerobic and anoxic phases. The flow of influent entering the reactor tank is slowed by a conical influent structure and...
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6344147 |
Flotation plant
A flotation plant comprises air supply means with which air bubbles can be supplied to a basin to which untreated water is supplied so as to cause flakes suspended in the untreated water to float...
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6337023 |
Flotation apparatus for clarifying produced water
A dissolved gas flotation apparatus and process for removing oils and other contaminants from produced water generated in the production of crude petroleum and natural gas. The invention is...
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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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