Abstract: 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 pre-cleaned in a first step in at least one mechanical cleaning device (5, 8) and in a second step is put through a biological cleaning process in at least one biological cleaning device (12, 13). The water (1) is transported between the cleaning steps by force of gravity and the cleaned water (1) is optionally returned to the swimming facility (4).

Abstract: 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 various origins, while ensuring that an added excess of external carbon is also practically completely removed using biological treatment. A method applies to waters that contain the target electron acceptor and a deficiency of carbon. One application of this method is the practically complete removal of nitrate from domestic wastewater (septic wastewater) while practically completely removing the added excess of external carbon, thus practically eliminating any increase of the biological oxygen demand of the water. Another method applies to waters that contain constituents that are potentially convertible to the target electron acceptor and may contain original carbon.

Abstract: 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 subjected to biological sulphate reduction in the presence of an electron donor source, thereby to reduce sulphates in the water to sulphides and to produce alkalinity. The complex carbon source is contacted with water containing higher sulphide and alkalinity concentrations or levels than the sulphate-containing feed water, thereby converting complex carbon molecules to electron donors. The, or another, electron donor source is regularly added to the biological sulphate reduction stage (12).

Abstract: 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 controlled release of concentrated a remediation composition throughout the delivery cycle. The invention also provides a dispensing apparatus and methods wherein the remediation agent is a remediation agent that includes living organisms. Finally, the invention provides a dispensing apparatus and methods wherein compositions of remediation agents are conveniently formulated for specific applications providing a range of retention, activation and release profiles that optimize the remediation effectiveness.

Abstract: Raw water containing ammonium-nitrogen is introduced into a nitrification tank and nitrification of nitrite-nitrogen by nitrite oxidizing bacteria is inhibited according to inhibition of the ammonium-nitrogen, thereby conducting stable nitrification of nitrous acid type at a high load by the action of ammonium oxidizing bacteria. Carbonate and/or bicarbonate are added into the nitrification tank 1. The inorganic carbon concentration in the nitrification tank 1 is maintained at 35 mg-C/L or more. The nitrified liquid thus obtained is introduced into a denitrification tank and denitrification reaction is conducted by the action of denitrifying bacteria with the remaining ammonium-nitrogen as an electron donor and the nitrite-nitrogen as an electron acceptor.

Abstract: 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 (16). The bioreactor (30) is adapted to digest liquid-base waste material using bacteria and is operable under anaerobic, anoxic and/or aerobic conditions. The decomposition chamber (16) decomposes substantially solid waste generated in the bioreactor. The bioreactor and decomposition chamber are in fluid communication such that substantially solid waste material generated in the bioreactor can be transferred to the decomposition chamber for further treatment. Resulting solids may optionally be forwarded to a vegetation cell (24) and the liquid (34) leaving the bioreactor may be optionally passed to a membrane treatment unit (40) and a disinfection unit (50).

Abstract: 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 oxygen-containing environment, and the interface zone is located immediately below the surface of the water. Sulphide in the water is biologically oxidized, in the interface zone, to sulphur. The sulphur may be removed by settling, thereby achieving a final removal of sulphur compounds.

Abstract: 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, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating compound, which both decreases the amount of gaseous H2S and puts the aqueous phase into a pH range where naturally occurring bacteria can more easily metabolize the sulfide. The composition also includes one or more nitrate salts which will accomplish longer term prevention of odors. Specific bacteria are incorporated into the formulation to insure that the nitrate has the right type and amount of bacteria present to prevent formation of and/or consume sulfide.

Abstract: In some embodiments, a system may reduce contaminants in water. A system may include a biofilm in a container. The biofilm may be formed from one or more bacteria coupled to one or more substrates. The bacteria may be selected to maximize the reduction of contaminants in water. The system may include one or more bacteria generators to provide bacteria to the biofilm and/or one or more air sources to provide an air bubble stream to the container and/or the bacteria generator. In some embodiments, bacteria may be preserved in a starvation phase. Bacteria may be incubated until they reach a starvation phase. The bacteria may then be preserved as beads or immobilized on a substrate. The preserved bacteria may be used in a system for the reduction of contaminants in water.

Abstract: 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 additives, whereby a great reduction in residues is already achieved after adding small amounts of macromolecular carbohydrates, for example 0.4 to 600 mg/kg BSB5,zw or 0.014 to 14 mg/kg dry activated sludge daily.

Abstract: 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 present on an exterior surface of the fibers.

Abstract: 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 methyl ether (TAME) in order to reduce the concentration of these ethers. A bacterium Gordonia terrae CIP I-2194 is innoculated under aerobic conditions. In particular, a bacterium Burkholderia cepacia CIP I-2052 or a bacterium Alcaligenes sp. CIP I-2561 or a bacterium Mycobacterium sp. CIP I-2562 is added in the presence of a growth substrate and, optionally, of a cobalt salt, and the ether contained in the effluents is degraded by the bacteria thus innoculated until its mineralization. The process is useable in the ether-contaminated water treatment industry.

Abstract: 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 base to the body. The oxidation reduction potential of the body is established at about ?300 mV or higher and more preferably about ?200 mV or higher, usually by adding an oxidizing agent such as oxygen or nitrates. After these conditions are established, sulfur oxidizing bacteria are added to the body. These preferably include Paracoccus denitrificans (formerly called Thiosphaera pantotropha) ATTC number 35,512. The sulfur oxidizing bacterial population should be established at levels of at least about 1×104 cfu/mL and more preferably at levels of 1×105 to 1×106 cfu/mL or higher. The increased ORP and pH levels make sulfate reduction thermodynamically unfavorable. Additionally, the presence of an alternative electron acceptor such as oxygen or nitrate allows the sulfur oxidizing bacteria to oxidize organic acids.

Abstract: 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 second, floating phase for nutrients. Biodegradable oils are preferred nutrients.

Abstract: 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 water to use the electron donor for reducing the contaminant into an innocuous derivative thereof. Illustratively, the electron donor contains about 0.1 to 75% by weight of chitin, such as crustacean shell, partially deproteinized crustacean shell, ground mushrooms, or a fungal fermentation broth. The chitinous electron donor can be added to the ground water as a particulate solid or aqueous slurry.

Abstract: 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 needed to support metabolization of the contaminants is estimated. The estimated amount of sulfate is applied to the site. In various alternatives of embodiments of the invention, the sulfate may be applied is a dry state or as a solution with water. The sulfate concentration in solution is in excess of 1000 ppm and may be as high as a near-saturation concentration.

Abstract: 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 wherein the composition is an electron donor for microbe-mediated reductive dehalogenation of the halogenated solvents and enhances mass transfer of the halogenated solvents from residual source areas into the aqueous phase of the ground water. Illustrative compositions effective in these methods include surfactants such as C2–C4 carboxylic acids and hydroxy acids, salts thereof, esters of C2–C4 carboxylic acids and hydroxy acids, and mixtures thereof. Other illustrative compositions according to the present invention include oleyl lactylic acid and, optionally, oleic acid and lactic acid or salts thereof. Especially illustrative compositions for use in these methods include lactic acid, salts of lactic acid, such as sodium lactate, lactate esters, and mixtures thereof.

Abstract: 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 (in situ) immobilization of metals is focused on treating large bodies of water having metals therein that are also adjacent a border of soil or earthen materials in an attempt to immobilize the metals from penetrating through the soil. The method is also able to treat the soil water boundary within the pit lake to provide additional immobilization. The pit lakes can include open pit lakes, subterranean mine lakes, flowing streams and the like. The method is also able to treat an abandoned mine prior to the filling of the mine with water. Initially, the density mean of the body of water is determined, which is densest typical at regions at or approaching 4 degrees C.

Abstract: 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 microbes, preferably from the genus bacillus. The method may be practiced in sewage treatment plants and also may be used for treatment and odor suppression in holding tanks and the like.

Abstract: 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 metals such as arsenic, antimony, beryllium, cadmium, chromium, copper, lead, mercury, iron, manganese, magnesium, radium, nickel, selenium, silver, thallium and zinc. The hydrocarbon may include alkanes, alkenes, Aalkynes, poly(alkene)s, poly(alkyne)s, aromatic hydrocarbons, aromatic hydrocarbon polymers and aliphatic hydrocarbons. Butane is a particularly suitable hydrocarbon which stimulates the growth of butane-utilizing bacteria. Remediation may occur in-situ or ex-situ, and may occur under aerobic, anaerobic or dual aerobic/anaerobic conditions. Examples of applications include the remediation of heavy metals, the remediation of arsenic impacted surface water, groundwater and/or soil, the remediation of acid mine drainage, and the treatment of spent metal plating solutions.

Abstract: 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, a process of preparing innoculum of the strain for reducing the Total dissolved solids (TDS) levels from both raw as well as electrofloated tannery effluents and an aerobic method of reducing Total Dissolved Solids (TDS) from Tannery effluents using the said strain.

Abstract: 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 or ore in a bioleaching lagoon by the action of hydrocarbon-utilizing bacteria under anaerobic conditions. The bioleached material is then pumped into a precipitation lagoon where hydrocarbon-utilizing bacteria oxidize the metals under aerobic conditions. In another embodiment, metals may be directly biooxidized from a heap of the metal-containing support material having a hydrocarbon/oxygen injection system embedded therein. A water sprinkler system may be used to wet the heap while the hydrocarbon/oxygen injection system stimulates the growth of hydrocarbon-utilizing bacteria. The resulting effluent solution may be pumped or gravity fed to an aerobic precipitation lagoon where aerobic hydrocarbon-utilizing bacteria are used to precipitate or otherwise deposit the metals onto a deposition material.

Abstract: 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 mixture of the bacterial strains of Bacillus alkalophilus and Bacillus sp.

Abstract: 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 containing polymers as well as a proportion of micro-organisms.

Abstract: 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 the wastewater sludge and sulfate-reducing bacteria, including the steps of burying the incineration ash together with the organic wastes under the ground, whereby the bacteria reduces the sulfates existing in the incineration ash to form sulfides, binding the formed sulfides with the heavy metal to form insoluble metal sulfides, thereby preventing the heavy metal from exuding out of the incineration ash as and eluate.

Abstract: 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 organic liquid dispersed in water, followed by infiltrating the emulsion into the media. Water, as the continuous emulsion phase, provides low viscosity and media wetting, favorable to infiltration. The emulsion disengages inside the media leaving dispersed organic nutrient attached to the media where it is accessible for microbial redox reactions, causing anaerobic conditions. Bioremediation includes sulfate reduction and precipitation of metal sulfides, and many other contaminant altering reactions achievable under anaerobic conditions. Components of the organic liquid are selected to enhance microbial activity and media adhesion. Contaminated groundwater and surface water, such as acid mine drainage, can be treated as they flow through a saturated media bed after the emulsion has been introduced into the media.

Abstract: 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 material; c) supplying the oxygen-containing gas to the reactor to provide a mixing action to the suspension of biomass material in said waste water, the supply of oxygen-containing gas providing a superficial upflow gas velocity greater than 0.25 cm/s; d) initiating a period of nutrient starvation of the biomass material while continuing to supply oxygen-containing gas; e) allowing formed aerobic granules to settle in a settling zone in said reactor; f) discharging at least a portion of the waste water; g) repeating steps (a) to (f) until at least a portion of the biogranules in said settling zone are within a predetermined properties; and h) recovering said biomass granules within those predetermined properties.

Abstract: 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 valent iron, wherein the adsorbent is capable of adsorbing the halogenated hydrocarbon. This invention further provides a bioremediation composition for in situ bioremediation of soil and/or groundwater contaminated with hydrocarbons, comprising an adsorbent capable of adsorbing said hydrocarbons, a mixture of facultative anaerobes capable of metabolizing said hydrocarbons under sulfate-reduction conditions, a sulfate-containing compound that releases sulfate over a period of time, and a nutrient system for promoting growth of said anaerobes, wherein said nutrient system includes a sulfide scavenging agent.

Abstract: 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 capable of degrading said oxygenate on a packed activated carbon bed through a rigid tubular instrument having a plurality of holes in the part of the rigid tubular instrument used for inoculation of the carbon bed; and b) flowing said groundwater, or other water stream contaminated with said oxygenate through a structure having a top, bottom and sides and a predetermined volume containing said bed of activated carbon having said biodegrader inoculated thereon. and an apparatus for the same. The method is particularly effective for treating water contaminated with methyl t-butyl ether (MTBE) and/or t-butyl alcohol (TBA).

Abstract: 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 semiconductor manufacturing process, is toxic and hard to decompose. The present invention provides novel microorganisms capable of decomposing TMAH. Also, the present invention provides a treatment method for wastewater containing TMAH, using the microorganisms. The present invention is useful in industrial field as an environmental friendly wastewater treatment method by decomposing over 90% of TMAH, one of environmental contamination materials in the wastewater of semiconductor factory.

Abstract: 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 monoammonium phosphate as a buffer in an aqueous solution. The Pseudomonas sp. is stable during storage of the composition.

Abstract: Methods and apparatus are provided for treating agricultural waste with an alkane substrate to stimulate bacterial digestion. The alkane treatment may also reduce odor of the agricultural waste material. The agricultural waste may include animal waste, vegetable material, leaf material, plant material, composting material or waste paper products. The alkane preferably includes butane, propane, methane and/or ethane, with butane being particularly preferred. Methods and apparatus are also provided for recovering plant growth-enhancing material from the treated agricultural waste and for treating soil with alkane-utilizing bacteria and/or an alkane substrate in combination with a carrier material to increase seed, bulb, plant and crop growth.

Abstract: 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 enhance the removal of a broad range of recalcitrant organic and inorganic contaminants in the environment by providing an improved means of promoting the anaerobic, biologically mediated degradation, transformation, and/or detoxification of the contaminants which may be present in solid and liquid wastes, soils, sediments, and water bodies. The invention provides for improved means of (i) promoting the solid-phase extraction, absorption, and adsorbtion of recalcitrant contaminants from contaminated media, (ii) creating, enhancing, and maintaining anaerobic and highly reducing conditions (i.e.

Abstract: The present invention relates to a bacterial strain of accession number MTCC 5098 useful for reducing the Total dissolved solids (TDS) levels from pulp and paper waste water effluents, and a process for the preparation of innoculum of the strain and also, a method of reducing Total dissolved solids (TDS) from pulp and paper waste water effluents using the said strain.

Abstract: 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 the stream, preferably in a single pass, with an aqueous liquid medium containing volatile organic compound-metabolizing microbes, e.g., Bacillus subtilis, under volatile organic compound-metabolizing conditions. A treated stream results which contains volatile organic compound metabolization products of volatile organic compounds, e.g., water and carbon dioxide, and substantially reduced volatile organic compound content.

Abstract: A method and apparatus are disclosed for remediating odorous media using an alkane substrate. The alkane substrate, such as butane, is introduced to the odorous medium in order to reduce or eliminate odors. The alkanes may remediate water, wastewater, soil, gas, solid waste, fish waste, algae and algal material.

Abstract: 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, which are separated from the waste water. The biological reduction and the precipitation of the metal species are carried out in a moving sand bed, in which sand particles partly immobilize the bacteria and retain the precipitated metal species, treated waste water is separated from the precipitated metal species and the precipitated metal species are subsequently separated from the sand particles. Metals like selenium and uranium can be precipitated without sulphur components, whereas metals like antimony, cadmium, copper, zinc and the like are precipitated as sulphides.

Abstract: 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 reactions in one system by utilizing the H2O2— and Fe(II)-producing microorganism Shewanella putrefaciens to generate Fenton reagents as metabolic by-products of alternating aerobic and anaerobic respiration. Accordingly, the present invention is directed to a process for oxidatively degrading organic contaminants comprising reacting Fe(III) citrate with S. putrefaciens under alternating anaerobic and aerobic conditions to generate Fenton reagents Fe(II) and H2O2, further reacting the Fenton reagents under neutral pH conditions with the organic contaminant to produce degraded transformation products of the contaminant.

Abstract: 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 a biological component, the parts. “Parts” include objects befouled with organic material and/or particulate matter. The cleaning fluid includes a surfactant that functions to separate organic waste from the parts being washed. A multi-tiered basin houses the cleaning fluid and the biological component living within the fluid that breaks down organic wastes produced by the cleaning fluid. The multi-tiered basin which forms the mechanical component of the washer, includes a sink member with a false bottom, and a support grid and filter to support microorganisms interposed between the false bottom and a bottom panel of the sink member.

Abstract: 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 metals such as arsenic, antimony, beryllium, cadmium, chromium, copper, lead, mercury, iron, manganese, magnesium, radium, nickel, selenium, silver, thallium and zinc. The hydrocarbon may include alkanes, alkenes, alkynes, poly(alkene)s, poly(alkyne)s, aromatic hydrocarbons, aromatic hydrocarbon polymers and aliphatic hydrocarbons. Butane is a particularly suitable hydrocarbon which stimulates the growth of butane-utilizing bacteria. Remediation may occur in-situ or ex-situ, and may occur under aerobic, anaerobic or dual aerobic/anaerobic conditions. Examples of applications include the remediation of heavy metals, the remediation of arsenic impacted surface water, groundwater and/or soil, the remediation of acid mine drainage, and the treatment of spent metal plating solutions.

Abstract: 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 or ore in a bioleaching lagoon by the action of hydrocarbon-utilizing bacteria under anaerobic conditions. The bioleached material is then pumped into a precipitation lagoon where hydrocarbon-utilizing bacteria oxidize the metals under aerobic conditions. In another embodiment, metals may be directly biooxidized from a heap of the metal-containing support material having a hydrocarbon/oxygen injection system embedded therein. A water sprinkler system may be used to wet the heap while the hydrocarbon/oxygen injection system stimulates the growth of hydrocarbon-utilizing bacteria. The resulting effluent solution may be pumped or gravity fed to an aerobic precipitation lagoon where aerobic hydrocarbon-utilizing bacteria are used to precipitate or otherwise deposit the metals onto a deposition material.

Abstract: An improved bio-filter system is presented for purifying potable water comprising locating at least one bio-filter structure upstream of a disinfecting unit in a potable water purifying plant and colonizing fermentation-raised bacteria on or within the at least one bio-filter structure and including the at least one bio-filter structure having the fermentation-raised bacteria. Improved potable water treatment processes are presented comprising the elimination of oxidation/disinfection prior to coagulation. Improved potable water treatment processes are presented utilizing oxidation/disinfection with ozone in the purifying process upstream of bio-filtration. Biofiltration is then followed by final filtration and final disinfection. By utilizing a new coagulation technology, separation of solids (including TOC and Dissolved organic carbon) from potable water is improved.

Abstract: The present invention provides a method of treating groundwater or other water stream(s) contaminated with an oxygenate to degrade said oxygenate which comprises:

Abstract: 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 preferred embodiment, pollutant concentrations are reduced by injecting a butane substrate into a contaminated area to stimulate the growth of anaerobic butane-utilizing bacteria which degrade the pollutants. In addition to the anaerobic treatment, the area may optionally be treated aerobically by switching from anaerobic to aerobic conditions.

Abstract: 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 biodegradation of TBA, and reduced frequency of the need to change the carbon bed, which comprises inoculating a biodegrader capable of degrading said oxygenate on an activated carbon bed through a rigid tubular instrument having a plurality of holes around the circumference of the end used for inoculation of the carbon bed by a method that optimizes dispersion and colonization; and flowing said groundwater, or other water stream contaminated with said oxygenate through a structure having a top, bottom and sides and a predetermined volume containing said bed of activated carbon having said biodegrader inoculated thereon. The invention is also an apparatus for biodegradation of oxygenate(s).

Abstract: Bioremediation of waste water traveling through a sewer system is accomplished by suspending in selected manholes a self-powered feeder device for delivering a desired amount of a solid microbial wastewater treatment preparation. The feeder device is preferably a) sealed to prevent moisture from causing caking or clumping of the solid microbial treatment preparation, b) controlled by a programable microprocessor and c) powered by a self-contained battery pack that allows the device to function for a desired period of time without maintenance or manual handling.

Abstract: 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 enhance the removal of a broad range of recalcitrant organic and inorganic contaminants in the environment by provided an improved means of promoting the anaerobic, biologically mediated degradation, transformation, and/or detoxification of the contaminants which may be present in solid and liquid wastes, soils, sediments, and water bodies. The invention provides for improved means of (i) promoting the solid-phase extraction, absorption and adsorbtion of recalcitrant contaminants from contaminated media, (ii) creating, enhancing, and maintaining anaerobic and highly reducing conditions (i.e.

Abstract: Methods and compositions for removing perchlorate and/or nitrate from contaminated material utilizing a DM-17 bacteria. DM-17 is a gram-negative, motile, polymorphic, facultative anaerobe which is deposited with the American Type Culture Collection under ATCC No. PTA-2685. DM-17 may be used as a substitute for anaerobic bacteria which are presently being used in biological systems for removing perchlorate and/or nitrate from water and other contaminated materials, such as soil. Enhancement of nitrate reduction results from the presence of a level of perchlorate. Enhancement of perchlorate results from the presence of a level of nitrate. Particular carbon contributors further enhance remediation.

Abstract: A process and composition for treating an animal waste in a waste holding facility to reduce sulfides and enhance efficient degradation of large amounts of organic matter with reduced odor. The process includes administering a probiotic material capable of promoting organic digestion to an animal and maintaining a sulfide gas concentration of less than 10 ppm from a waste produced by the animal. Maintaining a low sulfide gas concentration can be done by adding an innoculum of sulfide-utilizing bacteria to the waste produced by the animal.

Abstract: A process for treating hydrocarbon-containing effluents that comprise isoalkanes to reduce the hydrocarbon concentration at least partly is described, characterized in that in the presence of a suitable substrate, a Corynebacterium urealyticum CIP-I-2126 bacterium is grown, and the hydrocarbons that are contained in the effluents are degraded by the biomass of said bacteria that is thus produced. Application for pollution control of water and soil contaminated by hydrocarbons and optionally by ethers that come from a gasoline, kerosene and/or gas oil fraction.