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7553420 |
Systems and methods for wastewater odor control
A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound,...
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7544292 |
Apparatus for denitrifying wastewater
Disclosed is a method of denitrifying a solution including introducing into the solution an amount of a carbon source within a duration and at a frequency so that indigenous heterotrophic bacteria...
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7520991 |
Biological method for removing phosphorus and nitrogen from water using granulated methane-oxidizing bacteria
A biological removal method of phosphorus and nitrogen includes supplying a mixture gas into a gas holder. Inflow water and return water are supplied into the gas holder to make the mixture gas...
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7520960 |
Method for reducing slime production and mixture making the same
A method for reducing a production of a build-up slime in a papermaking process is provided. The method includes steps of adding a dispersing agent into the papermaking material to obtain a first...
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7473363 |
Organic waste treatment
A method of treatment of sewage comprising adding at least one cell signalling chemical (CSC) to a sewage substrate, wherein the at least one CSC regulates activity of a microbial population in the...
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7462480 |
Stimulation of microbial dechlorination of polychorinated biphenyls with halogenated ethenes
Disclosed is a method for the anaerobic microbial dechlorination of polychlorinated biphenyls (PCBs). Polyhalogenated ethenes are used to stimulate the growth and dechlorinating activity of PCB...
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7445714 |
Biological processing of animal waste
There is a biological composition and method of use. Included is a microorganism quantity, and a nutrient quantity which may have a supplement, a short-term nutrient and a long term nutrient. The...
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7439054 |
Bioreactor system for biological degradation of oily sludge
A 10,000 gallon sequencing batch reactor tank for the on-site bio-degradation of oily sludge. Bacteria already present in and adapted to oily sludge degrade the hydrocarbons found in oily sludge...
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7431839 |
Low oxygen biologically mediated nutrient removal
The present invention is directed to a substantially odorless biologically mediated treatment process for solid and liquid organic wastes. The present invention also provides for a novel nutrient...
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7422687 |
Biotreatment of As-containing hydroxide sludge
The invention discloses a biotechnological process for the treatment of hydroxide sludge containing As produced in potable water production processes which use FeCI 3 as a coagulant. The process...
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7413890 |
Methods for anaerobic bioremediation using solid-chemical compositions containing Mn(IV) and Fe(III)
Liquid chemical compositions are disclosed for anaerobic biodegradation, detoxification, and transformation of toxic organic and inorganic compounds in a contaminated geologic media under reducing...
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7407581 |
Biodegradation of oxyanions such as perchlorate on ion exchange resins
Improved systems and methods for removing the load of perchlorate and other oxyanions off of ion exchange resins through bioregeneration are disclosed. The improved systems and methods rely upon...
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7384556 |
Methods of enhancing biodegradation of groundwater contaminants
Systems and methods for co-enhancing contaminant degradation such as LNAPL and DNAPL degradation. Embodiments of the inventive technology may relate to assuring adequate amounts (e.g.,...
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7341664 |
Method for forming an in situ groundwater filter
A method and system for forming an in situ subsurface filter in a contaminated aquifer and for removing contaminants from groundwater drawn from a contaminated aquifer. The filter is produced in...
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7332082 |
System and method for biological purification of water
The invention relates to a method and a water treatment system ( 2 ) for treating and/or keeping clean water ( 1 ), in particular from swimming facilities ( 4 ), whereby the water ( 1 ) is...
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7329349 |
Water treatment
In accordance with the principles of the present invention, methods and apparatuses are provided for practically complete removal of one or more electron acceptors (excluding oxygen) from waters of...
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7306732 |
Treatment of water
A process ( 10 ) for treating sulphate-containing water ( 28 ) includes feeding the water into a biological sulphate reduction stage ( 12 ) containing a complex carbon source ( 18 ). The water is...
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7300583 |
Apparatus and method for remediation of a waste stream
The present invention provides a dispensing apparatus and method for the delivery of remediation agents into waste systems wherein the apparatus is capable of generating and maintaining a...
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7294272 |
Method for the treatment of waste
A waste treatment system suitable for domestic use and capable of producing water suitable for recycling within the household. The system includes a bioreactor ( 30 ) and a decomposition chamber (...
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7285217 |
Removing odoriferous sulfides from wastewater
A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound,...
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7285216 |
Treatment of water
A process for treating sulphide-containing water includes maintaining a steep redox potential gradient in an interface zone of the sulphide-containing water. The water is exposed to an...
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7247239 |
Method for biological treatment of water by adding macromolecular carbohydrates
The invention relates to a method for biological treatment of water, wherein macromolecular carbohydrates are added to the water to be treated, optionally together with vitamins and other...
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7175763 |
Membrane supported biofilm process for autotrophic reduction
A hollow gas transfer fibre is arranged in tows and potted into a module. The module may be used to treat wastewater by supplying hydrogen containing gas via the interior of the fibers to a biofilm...
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7166457 |
Method for treating bacterial effluents containing at least a Gordonia terrae CIP I-2194 ether
A process for the treatment of aqueous effluents containing at least one of the following ethers is described: ethyl tert-butyl ether (ETBE) and/or methyl tert-butyl ether (MTBE) and/or tert-amyl...
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7160712 |
Odor control
Disclosed herein is a method for treating odors in wastewater treatment bodies. The pH of the body is preferably established above about 6 and most preferably above about 7, usually by adding a...
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7147779 |
Passive treatment of wastewater and contaminated groundwater
A bioremediation system using inorganic oxide-reducing microbial consortia for the treatment of, inter alia coal mine and coal yard runoff uses a containment vessel for contaminated water and a...
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7138060 |
In situ remediation of contaminated groundwater
In situ treatment of contaminated groundwater includes identifying a site contaminated with a pollutant susceptible to degradation by in situ, sulfate-reducing microorganisms. An amount of sulfate...
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7138059 |
Environmental bioremediation using shell as an electron donor
A method for in situ bioremediation of contaminants in the environment is described. The method includes adding an electron donor to ground water in an amount sufficient for a microbe in the ground...
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7045339 |
Electron donors for chlorinated solvent source area bioremediation
Methods for enhancing bioremediation of ground water contaminated with nonaqueous halogenated solvents are disclosed. An illustrative method includes adding a composition to the ground water...
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7011756 |
In situ immobilization of metals within density variant bodies of water
A method for treating (in situ) large bodies of water contaminated with heavy metals and having varying density stratas to immobilize the contaminant metals is disclosed. The method, or process for...
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6984324 |
Wastewater treatment
A method for the treatment of sewage sludge which comprises the step of applying to the sludge a biologically effective amount of a composition which contains a lignosulfonate and sludge digesting...
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6923914 |
Remediation of metal contaminants with hydrocarbon-utilizing bacteria
Methods and apparatus are disclosed for remediating metal contaminants using hydrocarbons which stimulate the growth of hydrocarbon-utilizing bacteria. The metal contaminants may include heavy...
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6905863 |
Aerobic method of removing total dissolved solids (TDS) from tannery wastewaters
The present invention relates to a bacterial strain of accession No MTCC 5097 useful for reducing the Total dissolved solids (TDS) levels from both raw as well as electrofloated tannery effluents,...
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6875356 |
Method and apparatus for recovery of metals with hydrocarbon-utilizing bacteria
Methods and apparatus are disclosed for recovering metals from metal-containing support materials such as mineral ores. In one embodiment, the metal may be separated from crushed support material...
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6846483 |
Microbial composition and a process useful for the neutralization of alkaline waste-waters
The invention relates to a microbial composition for the neutralization of alkaline waste waters by biological means and a method of neutralization of alkaline waste waters using a synergistic...
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6837998 |
Method and conditioning agent for treating waste water and air pollutants
What is disclosed is a conditioning agent for the treatment of effluent and a process for preparing such a conditioning agent which includes a proportion of flocculating or precipitating agent...
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6805797 |
Method of treating incineration ashes with sulfate reducing bacteria
A method of treating incineration ash and wastewater sludge, wherein a mutual relation in using nutrients exists between the incineration ash containing heavy metal and organic wastes containing...
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6797171 |
In situ anaerobic bioremediation of earth and sold waste contaminants using organic/water emulsions
A process for in situ anaerobic bioremediation of contaminated earth media and solid waste media, including mining and chemical plant wastes, is shown. The process includes creating an emulsion of...
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6793822 |
Aerobic biomass granules for waste water treatment
The method of producing aerobic biogranules for the treatment of waste water comprising the steps of: a) introducing waste water into a reactor; b) seeding the reactor with a active biomass...
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6787034 |
Compositions for removing hydrocarbons and halogenated hydrocarbons from contaminated environments
The present invention provides a supported catalyst for in situ remediation of soil and/or groundwater contaminated with a halogenated hydrocarbon comprising an adsorbent impregnated with zero...
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6773598 |
Method and apparatus for biodegradation of oxygenates
The present invention provides a method of treating groundwater or other water stream(s) contaminated with an oxygenate to degrade said oxygenate which comprises: a) inoculating a biodegrader...
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6770470 |
Strain for decomposing TMAH, and method of wastewater treatment using the same
The present invention describes a wastewater treatment method by a microorganism decomposing Tetramethyl Ammonium Hydroxide (TMAH) which, utilized in etching the surface of silicone chip in...
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6762047 |
Bacterial parts washer, composition and method of use
A composition useful for cleaning and bioremediation applications is provided which comprises a Pseudomonas species, an alkali metal nitrate, an ethoxylate nonionic surfactant, and optionally...
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6699707 |
Microbial enzyme-enhanced organic-inorganic solid-chemical composition and methods for anaerobic bioremediation
The present invention discloses the formulation and use of an advanced solid-media chemical composition which includes both plant-derived and inorganic components which is designed and intended to...
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6653120 |
Process for reducing volatile organic compound content of refinery liquid waste streams using aqueous solutions containing microbes
A process and apparatus are provided for reducing volatile organic compound content, e.g., benzene content, of a hydrocarbon-containing gas stream, e.g., a refinery waste vapor stream by contacting...
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6630071 |
Process for the treatment of waste water containing heavy metals
A process for the treatment of waste water containing heavy metals in which sulphur components and/or metals are biologically reduced to precipitate the metals as water-insoluble metal species,...
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6627428 |
Degradation of organic contaminants by a microbially-driven fenton reaction
The present invention is directed to a microbially-driven Fenton reaction for the transformation of organic contaminants. The microbially-driven Fenton reaction combines abiotic and biotic...
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6571810 |
Parts washing system
Provided is a “parts washer” that includes a fluid that performs a cleaning function and maintains the viability of microorganisms in the fluid which biodegrade organic material in contact with...
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6488850 |
Method and apparatus for anaerobically degrading pollutants with alkanes
A method and apparatus are disclosed in which alkanes such as butane are used to degrade pollutants such as tetrachloroethylene (PCE) and carbon tetrachloride (CT) at contaminated sites. In a...
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6458276 |
Method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcohol
Disclosed is a method for treating groundwater, or other water streams contaminated with oxygenate(s), particularly MTBE and TBA, characterized by improved biodegradation of MTBE, the...
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