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5174859 |
Method for treating mechanical pulp plant effluent
A method for treating a mechanical pulp plant effluent waste stream by freezing the effluent stream and separating frozen product. The frozen product contains between about 50 to 150 ppm chemical...
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5171455 |
Method and apparatus for separation of toxic contaminants by nebulization
Small quantities of one or more liquids having a low boiling point dispersed with a large quantity of one or more immiscible liquids having a higher boiling point are separated in a rapid and...
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5167838 |
Three phase separation process
A solute can be separated from a solute/solvent solution by dissolving a gas-forming material into said solution and then adjusting the temperature, pressure and solute concentration of a resulting...
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5156747 |
Separation of liquids with different boiling points with nebulizing chamber
Small quantities of one or more liquids having a high boiling point dispersed with a large quantity of one or more immiscible liquids having a lower boiling point are separated in a rapid and...
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5156751 |
Three stage centrifuge and method for separating water and solids from petroleum products
A three stage centrifuge especially adapted to the separation of oil, water, and solid particles in an emulsion. As an example, the centrifuge may be used to separate sediment and water from a...
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5152900 |
Method for preparing packaged sterilized mineral water, method for producing sterilized container for packaging the same and packaged sterilized mineral water
Sterilized and packaged mineral water comprises sterilized mineral water having a hardness of not less than 50 mg/l and a content of dissolved carbonic acid gas ranging from 9 to 30 mg/l (as...
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5152897 |
Method for the purification of a bifidobacteria-proliferating substance
A method for the purification of a bifidobacteria-proliferating substance is provided which comprises adjusting the temperature of soybean whey to 50° to 100° C. and the pH thereof to 6.5 to 10...
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5151503 |
Process for reducing hydrolysed protein chlorohydrin content
The chlorohydrin content of a liquid containing hydrolyzed protein obtained by hydrolysis of protein with hydrochloric acid is reduced in an apparatus system by introducing alkali into the liquid...
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5149445 |
Process and apparatus for the purification of substances
A substance is provided in molten form and then converted into crystallized pellets. The pellets are conveyed into a vessel having an open lower end, whereby the pellets continuously advance...
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5138075 |
Extractive separation method
The present invention provides an extractive separation method in which a solute contained in a medium can be efficiently extracted and separated with a lower consumption of energy under the...
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5135655 |
Process for treating refinery slurries
Disclosed is a process for treating a refinery slurry containing water, oil and a solid fraction, wherein the slurry is brought into contact with carbon dioxide gas in order to adjust the pH value...
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5133880 |
Fluid purifier and method for purifying fluid contaminated with a volatile contaminant
A fluid purifier includes a vacuum separator having a rotating disc disposed inside a chamber which is maintained at a negative pressure. Oil contaminated with a chlorofluorocarbon is introduced...
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5132019 |
Method of removing corrosion products in a water circulation system
Particles of an ion exchange resin are brought into contact with water in a water circulation system in a power plant for capturing corrosion products and other impurities and are removed after...
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5126058 |
Separation of physically co-mingled plastics using a supercritical fluid to facilitate recycling
The present invention provides a method for selectively separating co-mingled materials of different densities by selective density flotation of the materials in a fluid in the vicinity of its...
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5124052 |
Apparatus for and method of filtering a fluid
A fluid filter assembly comprises a heater and a filter in series fluid flow relationship. A means for bypassing a fluid around the heater and the filter is provided which comprises ducts and a...
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5112495 |
Method of cleaning up petroleum oil spills
The improved method employs hydrocarbon wax, preferably paraffin wax, as the cleaning agent for petroleum oil spill slicks. The method includes spraying the molten wax on the petroleum oil-covered...
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5110481 |
Method for separation of polyvinyl alcohol from aqueous solutions thereof using peroxodisulfates
A method for separation of PVA from an aqueous solution thereof such as the waste water containing PVA from the pretreatment of a textile product, in which a peroxosulfate such as ammonium...
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5110507 |
Method of separating and purifying spent solvent generated in nuclear fuel cycle
A method of separating and purifying a spent solvent generated in a nuclear fuel cycle and containing a phosphate and a higher hydrocarbon. This method comprises treating the spent solvent at a...
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5102554 |
Method of recovering phosphor for picture tubes
In a method of recovering phosphor for picture tubes from phosphor sludge, the phosphor sludge is first subjected to a steam treatment, thereby causing substances adhering to the surface of the...
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5102503 |
Mobile self-contained system for on-site recovery of solvents
A system for on-site recovery of reusable industrial waste components, such as solvents, from a liquid waste stream includes a trailer that is internally partitioned to separate system components...
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5100563 |
Method for introducing pure hot-spring water directly transported from a spa into a spa house bath and for maintaining the purity and freshness of the introduced water
A method for introducing pure hot-spring water directly transported from a spa into baths of a spa house and for maintaining the purity and the freshness of the introduced water. Pure hot-spring...
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5100559 |
Treatment methods for breaking certain oil and water emulsions
Disclosed are treatment methods for breaking emulsions of petroleum oil and salt water, fatty oil and water, and those resulting from liquefication of organic material. The emulsions are broken by...
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5100562 |
Refrigerant recycling system
A highly efficient refrigerant purification device for removing moisture, oil, particulates, non-condensible impurities and other contaminants from a refrigerant, thereby allowing maximum recovery...
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5098584 |
Method for separating oils from scum
Product, method and apparatus for producing separated components from scum are taught. The separated component is a vegetable-based oil or animal-based oil comprising principally stearic and...
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5096599 |
Process for purifying the effluent from urea production plants
A process for purifying the effluent originating from urea production plants, consisting of three successive treatment stages, namely stripping of the volatile components, thermal hydrolyis of the...
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5096600 |
Method for decontaminating soils
A method for substantially degrading and detoxifying soils contaminated with haloorganic compounds is shown. The method comprises contacting a soil, sediment, or sludge containing less that 5% by...
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5089121 |
Apparatus for recovering residual tar or oil from a fluid medium
There is disclosed a method and apparatus for recovering sticky tar or oil from a fluid medium, such as water or sand. The tar is first separated from the fluid medium, e.g. by an open mesh...
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5087378 |
Process for enhancing the dewaterability of waste sludge from microbiological digestion
The present invention is concerned with a process for enhancing the dewaterability of a waste sludge having a substantial content of water-retaining cellular structure arising from microbiological...
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5084188 |
Method and device for separation of materials suspended or dissolved in a liquid and application fields
A method and device for separating materials suspended or dissolved in a liquid. The device includes a cross-beam (1), supported by masts (2) in which are fixed spraying heads (3) supplied by...
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5080796 |
Thermofiltration of plasma
A method for more selectively removing macromolecules from a plasma solution, whereby plasma containing the macromolecules to be removed is provided and heated to a temperature near or above normal...
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5071570 |
Method for separation of blood components and apparatus thereof
A method for the separation of blood into the components thereof, characterized by subjecting the blood to strong centrifugation thereby separating said blood into an upper layer (A) of...
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5032287 |
Septic tank effluent processing vaporizer
An effluent processing arrangement which takes liquid effluent from primary treatment. In a first stage the liquid is filtered. In a second stage the filtrate is treated to neutralize bacterial and...
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5030362 |
Process for stripping liquid systems and sparger system useful therefor
Undesirable materials, such as unreacted raw materials and by-products, are stripped from liquid systems by delivering a compressed, inert gas through the pores of a sintered porous sparger element...
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5015337 |
Vapor recovery system
Semiconductor devices such as integrated circuits and discrete transistors are mounted on cards and the cards are installed on raised racks extending up from the bottom of a tank forming a burn-in...
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5013366 |
Cleaning process using phase shifting of dense phase gases
A process for removing two or more contaminants from a substrate in a single process. The substrate to be cleaned is contacted with a dense phase gas at or above the critical pressure thereof. The...
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5011614 |
Process for the decomposition of explosive nitric acid esters dissolved in wastewaters
A process for effecting thermal decomposition of explosive nitric acid esters in wastewater effluents of the explosives industry wherein no additional by-products are produced and wherein the...
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5009791 |
Magnetic treatment of water used for agricultural purposes
A method of magnetically treating drinking water for domestic livestock comprises the steps of: mechanically filtering the water to effect removal of ferromagnetic particles; causing the water to...
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5008204 |
Method for determining the compositional distribution of a crystalline copolymer
A method for fractionating crystalline copolymers to determine solubility distribution as a function of temperature. Fractionation is conducted by passing a solvent through a column containing the...
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5002658 |
Water purification device and method
A vessel is provided with a flexible plastic tube containing an electrical contact switch. Impure water is added to the vessel between the tube and the wall of the vessel. The vessel is then placed...
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4992173 |
Boiler operating method with gases produced from bioreactor
A method is for operating a boiler to heat a bioreactor with gases produced from the bioreactor, while supplying excessive hot water to outside of a system. In the method, the boiler is operated to...
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4990237 |
Process for the recovery of oil from waste oil sludges
Commercially valuable oil is recovered from refinery-produced, Resource Conservation and Recovery Act classified, hazardous waste oil sludges by a series of volatilizing and condensing steps (which...
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4988442 |
Process for dewatering of biological sludge
The present invention provides an improved biological sludge dewatering process. The process comprises the steps of: (a) heating biological sludge to a temperature of about 90° to about 150° C....
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4981616 |
Spent fuel treatment method
In a method for recovering plutonium and uranium from spent nuclear fuel by solvent extraction having solvent consisting of tri-n-butyl phosphate, dibutyl phosphate and n-dodecane, the improvement...
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4975195 |
Apparatus and method for processing trap wastes and the like
A method and apparatus for processing trap waste and the like into its component solids and liquids treatable in a sewage treatment plant includes a cooker, a solids separation system, and a...
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4971704 |
System for purifying engine lubricating oil
Engine lubricating oil is removed from the engine sump, passed through a strainer and pumped at superatmospheric pressure through a heater to raise the temperature to 150°-180° F., a portion of...
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4971703 |
Treatment method for emulsified petroleum wastes
An improved reclamation process for treating petroleum oil and water emulsions derived from producing or processing crude oil is disclosed. The process comprises heating the emulsion to a...
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4966709 |
Thermofiltration of plasma
A method for more selectively removing macromolecules from a plasma solution, whereby plasma containing the macromolecules to be removed is provided and heated to a temperature near or above normal...
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4961859 |
Method of treating an aqueous processing waste solution of a non-silver halide light-sensitive material and a device therefor
A method and a device of dividing an aqueous processing waste solution of a non-silver halide light-sensitive material into solid and water are disclosed comprising the steps of: (a) introducing...
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4958020 |
Process for producing β-lactamase inhibitor
A process for producing the compound [2S-(2α,3β,5α)]-3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-yl-m
ethyl)-4-thia-1-azabicyclo[3 2 0]-heptane-2-carboxylic acid, (4-nitrophenyl)methyl ester,...
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4946559 |
Removal of dissolved volatile impurities from liquid
A method and device for removing, from liquid such as water, dissolved volatile substances and gases when water is being distilled or evaporated. Feed water of a distilling apparatus or evaporator...
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