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6010900 |
Method of increasing biodegradation of sparingly soluble vapors
A method for increasing biodegradation of sparingly soluble volatile organic compounds (VOCs) in a bioreactor is disclosed. The method comprises dissolving in the aqueous phase of the bioreactor a...
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6001252 |
In situ anaerobic dehalogenation
A method for in situ anaerobic dehalogenation of a halogenated organic compound in a groundwater plume reduces or prevents indigenous aerobic microorganisms from competing for a supplied electron...
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5994120 |
Method of bioremediating an organic hazardous substance
A method of bioremediating an organic hazardous substance present in an aqueous environment having contained therein a microorganism is provided which comprises introducing into the aqueous...
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5989892 |
Microorganisms, demulsifiers and processes for breaking an emulsion
The present invention discloses a process for breaking an emulsion comprising water and oil, comprising the steps of mixing an emulsion consisting of water and oil with a culture, bacterial cells...
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5985149 |
Bioremediation system
A bioremediation process employing an improved bioreactor comprises pumping contaminated ground water from a recovery well in a contamination site, passing the water through a fully pressurized...
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5976374 |
Self-cleansing filter
A self cleaning filter for aqueous media such as sewage effluent which comprises a ventilated bed of discrete filtration material such as particulates, finely ground or shredded non-oil plastic...
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5976375 |
Process for reducing production of biomass during activated sludge treatment of pulp and paper mill effluents
A process for reducing the production of biomass during activated sludge treatment of pulp and paper mill effluents, involving a conditioning of the recycled activated sludge (RAS) prior to its...
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5968359 |
Biotechnological purification of soil and water containing heavy metals
In a method of cleaning up heavy metal-laden waters and soils, conditions are established in the soils and waters to be treated so that the microorganism present there will form hydrogen sulfide,...
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5965431 |
Aerobic biodegradation of aromatic compounds having low water solubility using Bacillus thermoleovorans strain DSM 10561
A process for the aerobic biological break-down of substances having low water solubility in an aqueous medium, and a microorganism, Bacillus thermoleovorans strain DSM 10561 and an enzyme obtained...
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5958240 |
System for recycling waste water
An apparatus and method for treating waste water to generate clarified water for reuse in industrial processes which includes the steps of adding agents to the waste stream to generate floccules,...
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5954963 |
Process for biologically treating water
A process and apparatus for biologically treating water. The inventive process preferably comprises the steps of: (a) adding a sulfur-containing oxygen scavenger to the water in an amount effective...
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5942118 |
Method and arrangement for decomposing organic waste water pollutants
Highly concentrated waste water is subjected to a partially aerobic method in the reaction chamber of a vertical reactor (1). Aeration of the waste water is performed by regulating the redox...
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5922204 |
Method and apparatus for bioremediation of mixed hazardous wastes
A method and apparatus for bioremediation of mixed hazardous waste is discussed. The method and apparatus can be used for treatment of a liquid or slurry hazardous waste stream (e.g., industrial...
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5908555 |
Anoxic biotreatment cell
A biotreatment cell for removing nitrate from water is provided comprising a closed tank having an inlet port and an outlet port, and containing therein particulate matter which forms a fixed...
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5893975 |
Enhanced subsurface flow constructed wetland
A subsurface flow constructed wetland treats a variety of flowing wastewater effluents, provides pre-treatment clog-reducing wastewater sludge disintegration, and adds pre-treatment nutrients to...
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5888022 |
Method and system for treating bio-degradable waste material through aerobic degradation
A system and method are provided for treating biodegradable waste material in a landfill by aerobic degradation. Waste material is deposited in the landfill and covered. The moisture content in the...
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5885950 |
Composition for cleaning grease-traps and septic tanks control
A composition and methods for cleaning grease-traps, septic tank control, discharge water from industrial meat and poultry processing and packing plants, lift stations and municipal systems. The...
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5885459 |
Process for purifying and reusing surfactant-containing waste waters
Waste water from a laundry (1) is collected in a storage container (3), fluffs and textile sheddings are separated through filtering sieves (2). The volume of the container is set so that it may...
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5874001 |
Ground water remediation method
A method and apparatus for in situ removal of biodegradable contaminants from ground water or soil , or both by injecting oxygen gas into ground water containing a biodegradable contaminant in a...
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5866003 |
Apparatus for degrading pollutant, process for purifying contaminated medium and process for degrading pollutant
An apparatus for degrading a pollutant to purify a medium containing a pollutant using a microorganism, which comprises a container in which a region containing a microorganism capable of degrading...
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5849193 |
Surface active metal chelated nutrients for bioremediation of hydrocarbon contaminated soils and water
The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a composition comprising of a metal chelated macrocyclic amido...
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5849192 |
Procedure to recover from nitrification upsets
A method to recover from nitrification upsets comprising modifying bioreactor pH by addition of an acid source and addition of an inorganic carbon (IC) source.
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5846425 |
Methods for treatment of waste streams
A method for treating wastewater is useful in treatment of biomass (sludge) resulting from wastewater treatment, particularly for biological sludges of aerobic, facultative and/or anaerobic origin....
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5840182 |
Apparatus and method for biological purification of waste
An apparatus is disclosed for containing a microorganism culture in an active exponential growth and delivering a supply of microorganisms to an environment containing wastes for bio-augmenting the...
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5840193 |
Fluid extraction using carbon dioxide and organophosphorus chelating agents
Methods for extracting metalloid and metal species from a solid or liquid material by exposing the material to a fluid solvent, particularly supercritical CO 2 , and a chelating agent are...
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5833857 |
Mobile Bioreactor and Biogenerator
A mobile bioreactor/generator is disclosed comprising a vehicle for transporting the bioreactor/generators in pairs which may be connected in series or parallel. The bioreactor/generators is...
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5824221 |
Water purification process
A process for purifying water, which comprises passing water contaminated with organic compounds in countercurrent through a moving bed adsorber packed with an adsorbent medium that is colonized,...
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5820760 |
Process for reducing nitrous oxide emission from waste water treatment
An activated sludge process for reducing the amount of N 2 O released to the atmosphere during biological oxidation of NH 3 , includes the following steps: mixing wastewater influent containing NH...
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5821113 |
Method of reducing contamination and composition for use in the method
Contamination by organic materials is treated by applying an aqueous composition comprising organisms which are useful in degradation of the contaminant, a nutrient for the organisms and a polymer...
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5811010 |
Microbial degradation of tertiary butyl alcohol
A process for the aerobic degradation of t-butyl alcohol using a mixed bacterial culture prepared from an enrichment process using an ether containing a t-butyl moiety and an activated sludge...
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5807485 |
Shipboard fixed-bed bioreactor system
Disclosed is an apparatus and method for the continuous biological treatment of ship bilge water contaminated with petroleum and biodegradable materials. The apparatus includes a pumping system...
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5788841 |
Method for improving wastewater treatment
A method of treating wastewater prior to being processed within a wastewater treatment facility is provided, wherein the wastewater is delivered to the wastewater treatment facility by a collection...
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5789190 |
Methods and kit for the detection of cryptosporidium oocysts and giardia cysts
Disclosed are methods and kits for the detection of Cryptosporidium oocysts and Giardia cysts. Such methods include the concentration of a water sample to form a retentate followed by resolution...
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5783081 |
Performance of anaerobic digesters
Methods of improving anaerobic digestion by enhancing the microorganism population through the creation of a nutrient environment more favorable for microbial growth and through the addition of...
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5759402 |
Methods for the remediation of polluted soils
Method for the remediation of polluted soils by using microorganisms under anaerobic conditions wherein the degradation action of pollutants such as tetrachloroethylene, nitrate or nitrite by...
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5755058 |
Farming method using waste material
A method of farming comprises collecting waste material such as manure from animal farming, or effluent from food processing plants or the like in a closed container, stirring and aerating the...
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5750006 |
Process for making paper and cardboard
Process for making paper and cardboard, wherein at least one nitrate or basic nitrate of a trivalent metal is used as sizing agent, so that the process wastewater, after a biological...
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5738789 |
Method of purification of polluted underground water
A method of purifying underground water in a pollution zone comprises determining the rock components of the pollution zone and the flow velocity of the underground water; taking samples of the...
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5739031 |
Soil and water remediation and enhancement process and apparatus therefor
A simplified method is disclosed for handling growth and dispersion of microorganisms in solution and which is adaptable to many different end-use applications, including treatment of turf,...
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5730550 |
Method for placement of a permeable remediation zone in situ
A method for placement of remediation zones for treatment of contaminated groundwater in situ (10, 10A, 50, 60, 70, 80, 124) is described. The zones can be infiltrated or can be excavated and...
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5725885 |
Composition for enhanced bioremediation of oil
A particulate material, as well as a method of manufacturing and using the material, for promoting growth of petroleum degrading bacteria to aid in bioremediation of oil spills on water and in...
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5725771 |
Process for enzyme pretreatment of drill cuttings
Process for the treatment of drilling muds recovered at the surface of the ground, especially synthetic muds, characterized in that it comprises at least one stage of hydrolysis of said mud by...
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5704989 |
Closed loop surface cleaning system
A method for removing contaminants from a surface such as pavement using a portable closed-loop system which is transported to the location to be cleaned by a vehicle. The method includes storing a...
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5700685 |
System to reduce sediment toxicity
A method and apparatus for the treatment of sediment. The apparatus provides a plurality of injection sites for injecting a biochemical oxidant into the sediment. The oxidant is useful for...
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5698441 |
Surfactant formulations containing menthadiene and menthadiene alcohol mixtures for enhanced soil bioremediation
The present invention provides an improved surfactant formulation for enhancing the extent of a bioremediation of hydrocarbon contaminated soil, especially hydrocarbon contaminated soil that has...
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5695641 |
Method and apparatus for enhancing methane production
A method and apparatus for increasing the anaerobic activity in a landfill in order to boost methane production by injecting ammonia to thereby reduce residual oxygen levels, provide a rich source...
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5683487 |
Hydrophobic bioremediants
In one embodiment, the present invention provides a microbial nutrient composition comprises a stable, bi-continuous first and second phase. The first phase comprises an aqueous solution of...
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5681470 |
Method of extracting light volatile solvents from a gaseous effluent by wet-scrubbing a gaseous effluent and biomethanation of the solvent-rich liquid
An improved method and apparatus for treating a gaseous medium polluted with volatile organic solvents to produce a purified gaseous medium and a separate methane-rich and combustible gas. The...
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5653675 |
Bioremediation process for polluted soil water system
An eliminator for eliminating microorganisms which catch and eat pollutant-degrading microorganisms from a region to be decontaminated in a soil is applied to the region to protect the...
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5637220 |
Process for purifying sulphide-containing waste water
A process for purifying waste water containing sulphide, comprises oxidizing the sulphide to elemental sulphur in a reactor with sulphide-oxidizing bacteria in the presence of oxygen, and...
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