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7578938 |
Filtering medium and use of the said filtering medium for pollution removal from lagoons
Filtering medium based on activated carbon which is characterized in that it comprises three superposed layers, respectively an inner layer and two outer layers, the inner layer consisting of 80 to...
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6764603 |
Material for extracting hydrophobic components dissolved in water
A method for the extraction of hydrophobic constituents, such as benzene, toluene, xylene and/or chlorinated hydrocarbons, from an aqueous solution, involving the steps of contacting said solution...
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6506307 |
Process for sorbing liquids using tropical fibers
A process is described for sorbing hydrophobic liquids using a plurality of dried, washed fibers originating from a tropical plant material having naturally hydrophobic fibers. The dried, washed...
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6383394 |
Recycling process and apparatus
The invention relates to a method for rendering waste sorbent material recyclable. The method includes collecting polymer-based sorbent materials containing one or more solvents, treating the waste...
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6200364 |
Process for eluting precious metals from activated carbon
A process is disclosed for the recovery of gold and/or silver values from activated carbon, wherein they are adsorbed as cyanide complexes. The process uses an eluant containing sugar. The process...
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6030536 |
Disposal method for fuel oil and crude oil spills
A method for easily decomposing viscous, solidified spilled fuel oil or crude oil containing sea water and other disposal inhibiting substances. Titanium dioxide particles are added to viscous...
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5965030 |
Reusable mat for removing liquid contaminants
This invention relates to a method for removing liquid contaminant from surfaces, especially for removing spilled oil from the surface of water. More particularly, this invention relates to a...
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5738793 |
Method for removing benzenes from water
A method for tailoring naturally occurring zeolite materials with silane compounds and using such silane tailored naturally occurring zeolite solid sorbent materials to remove benzenes and alkyl...
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5707528 |
System and process for treating organic-contaminated aqueous waste streams
A method and system for removing miscible organic compounds from contaminated water is disclosed. The system of the present invention comprises a polisher for filtering out trace amounts of...
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5702610 |
Sheet materials for solid phase extractions and solid phase reactions
A sheet article for solid phase extraction or solid phase reaction comprises at least one sorptive polymer pulp, and optionally at least one of sorptive and reactive particulate. The article can be...
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5562963 |
Absorbent pads for containment, neutralization, and clean-up of environmental spills containing chemically-reactive agents
A pad for cleaning up liquid spills is described which contains a porous surface covering, and an absorbent interior containing chemically reactive reagents for neutralizing noxious chemicals...
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5538646 |
Method and system for removing oil from oil-absorbent material
A method and system for removing oil from an oil absorbent material. The method comprises placing untreated oil containing material in a centrifuge, centrifuging the material to remove and recover...
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5516809 |
Method for obtaining an elastomer product with high petroleum and its by-products absorption power
Methods for obtaining an elastomer product capable of absorbing petroleum and its by products including the steps of forming a mixture of waste vulcanized rubber, resin and organic solvent,...
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5490940 |
Method for forming mineral solids-oil floccules
A method is disclosed for removing spilled oil from shorelines, other solid surfaces, or from the surface of a body of water by adding to the surface a mixture of fine hydrophilic mineral solids...
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5468536 |
Sorbent articles
A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent...
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5443700 |
Method for treating waste water containing oil composed of esters, and treating apparatus thereof
A method for treating waster water containing oil composed of esters, which makes reactivation of spent adsorbent possible or unnecessary, and facilitates treatment of waste adsorbent. In order to...
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5429741 |
Sludge conditioning
Methods are described for treating sludge, e.g. biological and/or chemical sludge, with processed cellulose material combined with another material, e.g. a surface active agent, a detergent, a...
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5423991 |
Method to recover petroleum from slicks and spills
This invention comprises an apparatus or mechanism and a method of using it to recover petroleum from a floating slick or spill by means of absorbing the petroleum in powder particles principally...
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5369011 |
Method and apparatus for collecting and detecting bacteria
This invention relates to a method for collecting, concentrating and detecting microorganisms from difficult-to-separate environmental samples e.g. oil well samples and the like, for the purpose of...
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5364535 |
Method for separating oily pollutants from water runoff
A pad for absorbing oily pollutants from water is releasably attached in a catch basin for floating on the surface of the water in the basin. When the pad is saturated with oily pollutants, it is...
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5360654 |
Sorbent articles
A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent...
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5329974 |
Process of collecting and processing non-aqueous drip-liquids
A process for catching and processing non-aqueous drip-liquids, characterized in that the drip-liquid to be processed is caught in an oily and non-aqueous liquids absorbing, water-repelling, liquid...
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5259973 |
Treatment of spills with gelatin
A method is provided for treating "spills" of materials, e.g. an offshore oil spill, wherein an ungelled mixture of gelatin is deposited onto the material and then allowed to gel. As the gelatin...
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5244580 |
Method of removal and recovery of oil and grease from wastewater
There is disclosed a method of removal and recovery of oil and grease from wastewater wherein ferrite powders are used to adsorb the oil and grease contained in the wastewater, and then the oil and...
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5236589 |
Oil recovery method and apparatus
A system for recovering oil from an oil spill site. A vessel transports buoyant, oil absorbent material to the spill site. The absorbent material is dispersed below the water surface and advances...
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5229006 |
Method of recovering oil-based fluid and apparatus
A method of recovering oil-based fluid from a surface that includes the steps of applying man-made fibers that absorb the oil-based fluid or a cloth made from the man-made fibers to the oil-based...
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5227071 |
Method and apparatus for processing oily wastewater
A five stage treatment system for treating oily wastewater to fit it for discharge to surface waters comprising a coalescer for separating free oil, an ultrafiltration unit for separating...
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5200083 |
Skimmer and method for its use
The performance of mechanical skimmers for the removal of oil from water is enhanced through use of an oil-avid contacting member consisting of a non-woven mat of oleophilic fibers; the fiber...
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5178769 |
Filter for removing liquid hydrocarbons from water and process of removing gaseous and/or hydrocarbons from water
A filter for removing at least one hydrocarbon from water is disclosed where the active filter medium is fibrous peat which has been dried to a water content of 5 wt. % or less. A process for...
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5160629 |
Method for removing oil spills using a natural, recyclable absorbent
There is provided a method for removing substantial quantities of an organic substance, such as oil, from earth surface materials, such as bodies of water, using entire dried corn cobs in their...
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5156743 |
Oil absorbent layered fabric sheet
A method for removing oil from the surface of a body of water using a layered sheet comprised of natural fabric fibers to absorb oil between the layers in the sheet, the natural fabric fibers in...
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5135660 |
Method of recovering oil from the surface of water
A method of recovering oil floating on a water surface which has been contaminated with the oil by distributing upon the contaminated surface discrete particles of a hydrophobic macroporous highly...
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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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5035804 |
Oil spill water treatment
The invention relates to compositions and methods for removing oil from water surfaces. The composition comprises a fine grained particulate material, such as expanded perlite or vermiculite, or...
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5030357 |
Oil/grease recovery method and apparatus
An apparatus and method for separating hydrophobic materials in liquid state from an aqueous liquid or hydrophilic liquid, for separating debris from such liquid, or for purifying hydrophobic...
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4919892 |
Apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream
An apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream in a sewage system. The apparatus includes a disposable detector which floats in the effluent stream...
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4919820 |
Oil absorption method
The method of removing oil from a body of water that includes providing a flexible mesh container, and filling waterfowl feathers into the container, introducing the feather filled mesh container...
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4919819 |
Method for removing and decomposing hydrocarbon compounds from water contaminated therewith
A method and apparatus for the removal and safe disposal of trace quantities of toxic or carcinogenic hydrocarbon compounds from waste water. As a result of this process, such hydrocarbon compounds...
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4861384 |
Fluid removal cannister device
A fluid carrying chain is drawn through a perforated cannister containing fluid removal nodules that remove fluid from the chain.
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4832852 |
Nonwoven oil absorbing material and method
A method of removing oil from a surface contaminated with oil comprises spreading elongated mat (A) of nonwoven cotton fiber on the surface of the oil to absorb the oil. The mat is prepared by...
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4802920 |
Extraction of metals from aqueous solutions with asphaltenes
A process for extracting metals from aqueous solutions containing such metals comprising contacting such an aqueous solution with an asphaltene to extract at least one metal from the aqueous...
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4775475 |
Process for the removal of hydrocarbonaceous compounds from an aqueous stream and hydrogenating these compounds
A process for the removal of hydrocarbonaceous compounds from an aqueous feed stream comprising less than about 1 volume percent of the hydrocarbonaceous compounds which comprises the steps of: (a)...
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4744889 |
Separation of viscous hydrocarbons and minerals particles from aqueous mixtures by mixtures by oleophilic adhesion
A method and apparatus for separating an oil phase from an aqueous phase by means of a rotating drum apparatus containing one or more compartments, each being partially filled with oleophilic free...
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4711728 |
Treating spent filter media
A process for removing sorbed lubricating oil additives from siliceous filter material is provided. The process comprises forming a slurry of the additive-laden siliceous filter material and an...
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4599225 |
Continuous flow separation with moving boundary sorption
A continuous process for separating components of a fluid mixture is disclosed which comprises forming a sorption zone and a desorption zone, said zones being separated by a boundary of a sorbent...
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4575426 |
Method and apparatus employing oleophilic brushes for oil spill clean-up
A method and apparatus for removing oil from the surface of a body of water, subtidal seafloor, a riverbed, a shoreline or a beach are disclosed. The method employs a sweeping action of oleophilic...
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4529496 |
Method and apparatus for separating slurries and emulsions
A mixture containing dispersed phase and continuous aqueous phase, with particulate solids being part of either or both phases, is separated by passing it one or more times through apertures in an...
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4374029 |
Regenerative filter
A regenerative filter having particular application for removal of oil from water. The filter includes a bed of finely divided particles or media separated in three horizontal layers. The top layer...
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4366067 |
Method and apparatus for removal and recovery of oil
Bags or booms of porous material filled with an oil adsorbant, particulate polyisocyanurate synthetic foam material are used to enclose and adsorb oil spilled on water or hard surfaces.
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RE31087 |
Method for separating oil from water
A method for separating water-immiscible oils and oil-like substances from mixtures including said oils in an aqueous medium which comprises contacting the mixture with an oleophilic fibrous web...
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