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5372720 |
Method for purification of wastewater
A method of reducing nitrogen, phosphor, and excessive biological oxygen demand (BOD) in wastewater supplied to and passing through a granular filter bed activated with bacteria includes in the...
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5368411 |
Method and apparatus for on the site cleaning of contaminated soil
An in situ method of cleaning contaminated soil and/or water comprises breaking up contaminated soil, admixing soil with water and a biodegradable detergent in a proportion effective to obtain an...
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5362397 |
Method for the biodegradation of organic contaminants in a mass of particulate solids
A method for the biodegradation of organic contaminants in a mass of particulate solids. The method comprises providing a contaminated mass of particulate solids on an impervious surface in fluid...
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5350516 |
Control of odor and septicity and purification of sewage and wastewater
This invention is a process for controlling odor and septicity of sewage or wastewater and for purifying sewage or wastewater by biological active substances, A source of sulfur dioxide is added to...
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5348803 |
Microcapsules and method for degrading hydrocarbons
A microcapsule for use in degrading a hydrocarbon comprising a core material, a coating material, and at least one microorganism capable of degrading said hydrocarbon, said core material comprising...
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5342769 |
Microbial dehalogenation using methanosarcina
A method for bioremediation of hazardous wastes is disclosed. The method can be used for anaerobic treatment of a liquid or slurry hazardous waste stream (e.g., industrial wastewater or sludge) or...
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5342522 |
Method for the treatment of sewage
The invention relates to a method for the treatment of (raw) sewage in a package plant consisting of three bioreactors in series. The treatment is being carried out using three types of biomass. In...
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5340376 |
Controlled-release microbe nutrients and method for bioremediation
A controlled-release nutrient source is added at a low level to a bioremediation environment to enhance microorganism growth and activity and promote the effectiveness of the bioremediation in...
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5334312 |
Use of bicarbonates in the biodegradation of hydrocarbon contaminants
A method is disclosed for treating a solid or liquid medium, e.g., soil or groundwater, which is contaminated with a hydrocarbon contaminant, e.g. diesel fuel or gasoline, by adding to the medium...
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5316940 |
Constitutive soluble methane monooxygenase mutants of methanotrophic bacteria such as Methylosinus trichosporium A.T.C.C. 55314
Selection of mutant methanotrophic bacteria capable of efficiently degrading halogenated hydrocarbons typically found in numerous wastewater sources is described. The mutants are distinguishable...
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5314620 |
Cutting oil treatment
A method and apparatus for the biological purification of cutting oil, such as used in metal machining apparatus, is disclosed. The invention herein provides a suitable environment for cultured...
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5314619 |
Method and apparatus for pond water clarification and maintenance
Apparatus is disclosed for improvement of water quality in a pond or similar body of water. A main conduit is located below the water surface and extending generally parallel to the shoreline. A...
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5302179 |
Method and apparatus for producing useful soil products from waste products
A method and apparatus for producing a useful soil product from contaminated soil and sludge is disclosed, and wherein the contaminated soil is heated in a primary treatment unit to a temperature...
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5302286 |
Method and apparatus for in situ groundwater remediation
A system for in-situ bioremediation includes a well extending into a saturated zone. The well includes a casing having two permeable sections in the saturated zone. Groundwater may be recirculated...
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5300227 |
Bioremediation of hydrocarbon contaminated soils and water
Simply stated, the present invention employs a surfactant system for treatment of hydrocarbon contaminated soils and water that increases the interface between the hydrocarbon contaminant,...
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5296111 |
Method of treating photographic processing wastes
A method of treating photographic processing wastes is disclosed. The method comprises (1) mixing a silver-recovery system waste and a development system waste from photographic processing to...
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5294340 |
Process for the biological treatment of waste water using microorganisms
The present invention relates to the biological treatment of waste water using microorganisms whose living conditions are maintained by addition of oxygen into a contact path. An underwater support...
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5286385 |
Method for removing nitrogen from an aqueous solution
A method of removing nitrogen from an aqueous solution by simultaneous microbial nitrification and dentrification comprising treating the aqueous solution in one or more fixed bed reactors...
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5286140 |
Bioremediation systems and methods
Bioremediation systems and methods are disclosed in which petroleum contaminated soil (PCS) are treated and recycled to below acceptable contaminant levels. The system comprises a treatment cell at...
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5284587 |
Bacteria-containing polymer gel for waste water treatment
A bacteria-containing two component polymer gel is provided for solubilizing particulate or colloidal organic materials in wastewater. The gel contains a minor amount of a polymer component that is...
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5279740 |
Ground contamination remediation process
Disclosed is a process for improved removal of contaminants including oily wastes and other organic hydrocarbonaceous materials from ground waters and areas adjacent to or in the vicinity of ground...
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5277814 |
Process for treating organic wastes
A method for aerobically treating water-containing organic wastes is provided. This process may be conducted in a closed reactor with suitable controls to prevent any adverse environmental impact,...
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5277815 |
In situ biodegradation of groundwater contaminants
Regulated processes for biodegrading halogenated organic compounds in an aqueous subsurface environment through stimulation of bacteria are provided. The processes provide an electron donor source...
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5269929 |
Microbial process for the reduction of sulfur dioxide
A biological process is described involving the conversion of SO 2 to H 2 S using sulfate reducing bacteria in co-culture with facultatively anaerobic heterotrophs under anaerobic conditions in a...
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5259959 |
Anoxic ammonia oxidation
A biological denitrification is provided in which ammonium ion is used as an electron donor in the denitrification. The process may advantageously be used under conditions of high ammonium ion...
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5244574 |
Method for treating oil spills on water
The invention provides a method for treating oil spills on water comprising applying liposomes to a body of water to form a monomolecular layer of phospholipid molecules on the water surface which...
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5242592 |
Process for biological waste water treatment
Activated sludge process for biological waste water treatment comprises controlling the supply of oxygen to a single tank reactor in response to the phosphate concentration in the anaerobic phase...
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5242825 |
Biological remediation of creosote- and similarly-contaminated sites using Pseudomonas paucimobilis
This invention concerns a biological process for remediating creosote-contaminated sites or environment sites containing polycyclic aromatic hydrocarbons generally found in creosote-contaminated...
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5228997 |
Aerobic biological nitrification using biomass granulates
Effluents contaminated with NH 4 + values, e.g., domestic sewage, are purified by aerobic biological nitrification within a bed of biomass granulates, e.g., a fluidized bed, such granulates...
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5228998 |
Floating biological contactor
The method and apparatus of the invention are directed to the removal of pollutants from ponds, lagoons, streams, and similar waters. Floating apparatus is designed to house, nurture, and support...
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5228995 |
Biochemically enhanced hybrid anaerobic reactor
A biochemically enhanced hybrid anaerobic reactor (BEHAR) system has been developed for treatment of high strength industrial wastewaters. The process is designed and operated based on specific...
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5227069 |
Bioremediation method
A method is provided for bioremediating aged PCBs such as Aroclor 1260 in aquatic sediments under anerobic conditions by stimulating the dechlorination of the aged PCBs through addition of...
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5227068 |
Closed apparatus system for improving irrigation and method for its use
A method and apparatus are described for providing improved irrigation to vegetation in open areas such as parks and golf courses, including providing improved microbiotic and nutrient supplies to...
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5227067 |
Apparatus for improving irrigation or cleaning water and method for its use
A method and apparatus are described for improving the aerobic and nutrient quality of a body of water in a reservoir which contains undesirable dissolved salts and harmful microorganisms, by...
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5225083 |
Method for bioremediation of grease traps
A method for bioremediation of grease traps, which includes the steps of mechanically removing solid materials such as plastic items, food particles and the like from entrances to all drain lines...
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5213681 |
Method for biologically removing nitrogen from wastewater
The present invention relates to a system and method for biologically removing nitrogen from wastewater. Both the system and method entails forming a mixed liquor and transferring the mixed liquor...
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5213967 |
Automated sterility testing system with concurrent sample dissolving, diluting and mixing
There is disclosed an automated system for testing the sterility of products intended for human health administration or for human consumption. The system permits a plurality of samples of a...
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5211847 |
Denitrification methods
An improved multi-stage treatment system for biological denitrification of and suspended solids removal from water includes a biological reactor containing rigid media supporting denitrifying...
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5209851 |
Remediation methods for toxic materials
Remediation of toxic waste materials in solid, liquid or a mixture of solid and liquid form provides rapid reduction of the toxic conditions to innocuous levels. The process utilizes indigenous...
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5207912 |
Process for treating oily sludge
A method for aerobically treating a low solids water-containing oily sludge which comprises combining said sludge with a biologically inert, non-friable bulking agent characterized by having a...
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5206168 |
Method for small system wastewater denitrification
Dentrifying backing in a tablet form is periodically introduced into a home or commercial sewage treatment system, and specifically into an underground denitrification chamber. The system uses...
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5205935 |
High performance fixed film bioreactor
A method and apparatus for the continuous degradation of hazardous paint and organic solvent wastes. The apparatus includes a high performance fixed film bioreactor system into which is fed waters...
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5198114 |
Dolomitic activated carbon filter
A water filter provides good tasting, potable water without chemical biocides. A water filter utilizing activated carbon to rid the water of undesirable chemicals and the like has dolomite added to...
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5196121 |
Decomposition of halogenated aliphatic hydrocarbons in a bioreactor
Methanotropics are grown in a bioreactor containing a solid support. They decompose halogenated aliphatic hydrocarbons found in ground water. The growth of the bacteria and the methane...
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5190655 |
Water purification process 2
The present invention relates to a process at the purification of water, in particular sewage water, comprising a nitrification process and a denitrification process during simultaneous...
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5185079 |
Anaerobic sequencing batch reactor
An anaerobic sequence batch process carried out in a single vessel. The biological reactions occur under anaerobic conditions and the vessel is operated on a fill-and-draw basis in a sequential...
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5178491 |
Vapor-phase nutrient delivery system for in situ bioremediation of soil
The specification discloses a system for in situ bioremediation of soil wherein nutrients are delivered in the vapor phase to the affected area of the soil for utilization by microorganisms to...
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5171687 |
Apparatus for culturing and delivery of microbe for waste treatment in a flow system
A apparatus for injecting a solid microbial matter suspended in a liquid into a flow system utilizing a container having first and second chambers. The contents of the first chamber flows through...
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5160488 |
Bioremediation yeast and surfactant composition
A chemical product and method for accelerated biodegradation of petroleum on water. The chemical product includes a fermentation product portion and a surfactant containing emulsifier portion which...
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5155042 |
Bioremediation of chromium (VI) contaminated solid residues
Chromium in solid waste residues may be immobilized by reduction of essentially all of the Cr(VI) to insoluble Cr(III). The Cr(VI) is separated from the solids by contacting with an acid to produce...
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