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5344255 |
Oil, water and sand separator
Oil, water and sand are separated from soil by screening and separation of coarse particles, agitating the soil in a solution of non-ionic biodegradable detergent to promote emulsification of the...
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5340406 |
Method for removing contaminants from soil
A method and apparatus for removing contaminants from soil by a closed-loop, counter-current extraction process is disclosed. The process involves a preliminary water removal step, followed by a...
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5340505 |
Method for dissolving radioactively contaminated surfaces from metal articles
A method for dissolving radioactively contaminated surfaces of metal articles using a reagent of HBF 4 acid with the addition of at least one oxidation agent, preferably hydrogen peroxide H 2 O 2...
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5336333 |
Method for cleaning waste collection systems
A method for cleaning waste collection systems of solid materials using normal and injected water flow to suspend the solids in a slurry. A submersible pump moves the slurry from a collection point...
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5334255 |
Method for removing and reclaiming excess paint from a paint spray booth
Methods for removing and reclaiming excess paint from a paint spray booth includes entraining over-sprayed paint particles in a stream of air passing though the pain spray booth and causing the...
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5330657 |
System and method for removing asbestos particles from a slurry
A system and method for removing asbestos and other hazardous solids from a slurry collected during removal of insulation from pipelines, equipment and other structures. The slurry is collected in...
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5328518 |
Method for separating components of liquids in industrial process
Disclosed is a process for separating components of liquids in industrial processes for cleaning of articles. The process is directed toward a terpene-based cleaning system including washing and...
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5326407 |
Process for washing solid particles comprising a sophoroside solution
The invention relates to a process for cleansing solid particles impregnated with hydrocarbons. The process implements a solution comprising sophorosides. The process is particularly intended for...
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5316589 |
Method for controlling street surface pollutants
A method for collecting and treating small particulate pollutants typically found on the surface of streets in areas where the storm sewer and sanitary sewer are maintained separately. The method...
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5316588 |
System for spraying material on tubing and reclaiming excess material
A spray applicator apparatus and method for applying material to tubing and cold roll formed sections in a closed environment includes foam rubber wipes which are secured at the entrance and exit...
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5316591 |
Cleaning by cavitation in liquefied gas
Undesired material is removed from a chosen substrate by a process comprising the steps of (a) placing the substrate containing the undesired material in a cleaning chamber provided with...
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5310428 |
Solvent stabilization process and method of recovering solvent
Disclosed is a method of thermally stabilizing an effluent stream from an industrial process, such as a photolithographic process, to allow thermally manageable recovery of the solvent. In the...
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5310568 |
Active charcoal packets for purification of impure aqueous media
Impure aqueous media, e.g., contaminated white wines or sugar-containing liquors, are purified by (i) immersing therein a package which comprises a unit purifying amount of a characteristically...
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5302210 |
Rapid deployment method for recovering oil from beaches
A rapid deployment system for recovering oil from beachers includes an articulated vehicle for propelling and suspending a vacuum head above a beach or the like. A selected area of the beach is...
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5302324 |
Method for decontaminating substances contaminated with radioactivity, and method for decontaminating the materials used for said decontamination
Applying shotblast or sandblast to a substance contaminated with radioactivity, cleaning the substance with a liquid, washing the grit of shotblast or sandblast with an organic solvent, filtering...
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5300154 |
Methods for cleaning articles
The invention relates to methods and compositions for cleaning a wide range of soil types from dirty articles, such as metal, ceramic or glass substrates. A first class of solvent compositions used...
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5298082 |
Method for degreasing solid objects
A degreasing method and system which subjects dirty and oily parts to a bath of relatively impure solvent and thereafter rinsing such parts in relatively pure solvent. The rinsing is performed...
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5298079 |
Process for cleaning used oil filters
A process for removing residual oil from used oil filters. The process includes washing the oil filters with a wash water while simultaneously crushing the oil filters. The wash water has a...
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5289920 |
Process for thermically recovering old sands obtained in casting plants and for treating the dusts obtained during circulation of the sand
A process for thermically recovering old sand obtained in casting plants and for treating dust containing combustible organic components and incombustible inorganic components is disclosed. Dust...
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5288330 |
Method and apparatus for removing contaminants from particulate material
A method and apparatus for removing contaminants, including hydrocarbon and metal, from contaminated particulate material, such as gravel, soil, and the like. Initially, contaminants are removed by...
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5286301 |
Chemical vapor deposition system cleaner
An apparatus for cleaning the interior surfaces of a vessel which includes a cleaning head supported and guided into the vessel by a rigid air shaft. The cleaning head is supplied with a process...
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5277716 |
Method of controlling the solvent vapor concentration in an apparatus
The solvent vapor concentration which is mixed with air and is obtained in the treatment of articles in an apparatus is controlled in the apparatus by a method comprising the following steps: a)...
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5277715 |
Method of reducing particulate concentration in process fluids
Methods for reducing the number of adherent particulates in processing solutions to avoid deposition of such particulates onto a substrate treated with those processing solutions. For example,...
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5275668 |
Hydro impact medical and dental instruments washer
A medical and dental instruments washer is capable of washing medical and dental instruments clean within a few minutes. The washer contains a watertight chamber with a means for holding the...
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5271773 |
Process for cleaning articles with an aqueous solution of terpene and recycle water after separation
Disclosed is a composition and process for cleaning articles contaminated with water insoluble contaminants. The process allows for efficient recycling of components in the system. The wash...
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5268035 |
Method for cleaning metallic workpieces
A method and an apparatus for treating workpieces with a fluid, in particular for cleaning metallic workpieces prior to a subsequent heat treatment are disclosed. According to claimed method the...
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5268036 |
Method and apparatus for cleaning metallic workpieces
A method and an apparatus for treating workpieces with a fluid, in particular for cleaning metallic workpieces prior to a subsequent heat treatment are disclosed. The workpieces are positioned in...
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5266494 |
Bench scale treatability method for evaluation of soil washing
A process for determining the suitability of soil washing for various types of soils, sludges and other solids is disclosed. The process may be applied to relatively small soil samples which have...
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5259979 |
Process for regeneration of cleaning compounds
This invention is a process to rejuvenate the depleted metal salt oxidizing agents used in microetch cleaning compositions and to maintain the desired etch rate. This process comprises the steps...
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5256208 |
Process for removing volatile contaminants from granular materials
Volatile organic compounds and other volatile contaminants are removed from soils and granular solids by contacting the soil with steam at superatmospheric pressure and thereafter rapidly reducing...
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5250197 |
Pollution pad reconditioning/recycling system
A pollution pad cleaning system for recyclably removing hydrocarbons from an absorbent material such that the material is re-useable as originally designed. As the preferred embodiment a pollution...
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5248342 |
Methods for processing battery waste and other lead-contaminated materials
The present invention is directed to improved methods for processing battery wastes, battery casing debris and other lead contaminated materials. The improved processes of the present invention...
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5248343 |
Method for finishing metal containers
A method for finishing metal surfaces, especially that of metal containers, using a cleaning agent having a substantially neutral pH is provided. In one embodiment of the invention lubricants and...
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5248398 |
Process for direct electrolytic regeneration of chloride-based ammoniacal copper etchant bath
A novel bipolar cell is described together with a method for employing the same in the electrowinning of heavy metals (copper, nickel, cobalt and the like) from baths such as etchants, electroless...
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5246501 |
Flash drying treatment of solvent from workpieces
A solvent control arrangement for stripping liquid solvent from parts being degreased/defluxed in a degreaser or defluxer by intimate contact with liquid solvent or a vapor phase thereof is...
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5244575 |
Process for recovering organic solvents and contaminants from soap liquors
A method for recovering contaminants and the organic solvents used to extract the contaminants from an aqueous solution containing soap liquors comprises extracting the aqueous solution with an...
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5242502 |
Method and apparatus for cleaning articles
Disclosed is a method and degreasing apparatus for cleaning articles. The articles are contacted with a chlorinated benzotrifluoride liquid which is subsequently washed from the articles using...
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5234504 |
Methods for removing contaminants from contaminated solids (II)
A method of removing organic contaminants from contaminated solids in which the solids are comminuted as necessary to resolve them into particles with a top size of typically not more than 15 cm. A...
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5225087 |
Recovery of EDTA from steam generator cleaning solutions
A process for recovering the chelating or complexing agents, particularly ethylenediaminetetraacetic (EDTA), used in chemical cleaning and decontamination operations performed to clean steam...
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5223147 |
Process of treating contaminated soils
Contaminated soils are treated in that an aqueous slurry of the soil is separated into a coarse fraction and a fine fraction, the fine fraction is subjected to flotation, the resulting froth is...
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5217538 |
Apparatus and related method for the removal of labels and foil tags adhering to containers, in particular, to bottles
An apparatus for the removal of labels and foil tags adhering at different levels to containers, in particular, bottles. The bottles are gripped axially between a rotary plate and a gripping head...
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5215592 |
Dense fluid photochemical process for substrate treatment
A process for removing undesired material from a chosen substrate by exposing the substrate simultaneously to ultraviolet radiation and a selected dense fluid, wherein the radiation produces a...
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5205952 |
Methods for controlling airborne dissemination of lead and lead-contaminated fines during the storage and processing of lead-contaminated materials
The present invention is directed to improved methods for processing battery wastes, batter casing debris and other lead contaminated materials. The improved processes of the present invention...
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5201958 |
Closed-loop dual-cycle printed circuit board cleaning apparatus and method
A cleaning apparatus and method for washing and rinsing electronic assemblies. The apparatus includes a single closable chamber for containing a single tank with attached ultrasonic transducers....
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5199997 |
Treatment of hydrocarbon-contaminated particulate materials
This invention relates to methods and apparatus for cleansing oil-contaminated particulate materials. The invention is particularly applicable to the treatment of oil well drill sites and to...
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5194095 |
Environmental waste-control process for spray rinsing chemically treated articles
A process and apparatus that includes multiple counterflow rinsing of chemically treated, anodized, plated or otherwise processed workpieces, utilizing a single on-line spray-rinse tank or station...
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5192455 |
Pollution pad reconditioning/recycling system
A pollution pad cleaning system for recyclably removing hydrocarbons from an absorbent material such that the material is re-useable as originally designed. As the preferred embodiment a pollution...
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5186758 |
Environmentally-friendly battery cleaning method
A battery cleaning system and process are provided, that make it possible to clean high capacity (12 to 72) volt acid storage batteries using appropriate cleaning solutions and liquids while...
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5185041 |
Machine for washing plastic fragments to prepare them for recycling
A process of, and apparatus for, washing fragments, such as plastic fragments, in a continuous fashion as part of a recycling operation. The plastic fragments are fed into an axially rotating...
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5183512 |
Method of cleaning semiconductor wafer and computer disks by purified water treated with electric AC signal
Described is a process for utilizing an electric AC signal of a frequency preferably between 0.1 kHz and 1 GHz to modify and otherwise enhance the properties of deionized water used for the purpose...
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