From Sewage Or Night Soil Patents (Class 71/12)
-
Publication number: 20100000277Abstract: The present invention relates to apparatus, systems and methods for making municipal sludge based plant nutrient. In particular, the plant nutrient of the present invention is substantially free of noxious odor and retains valuable nutrients, while solving the problem of disposal of municipal sludge and the high cost of energy associated with treating and the transportation and land-filling the ever growing volume of municipal bio-solids.Type: ApplicationFiled: July 2, 2008Publication date: January 7, 2010Inventors: William W. Keller, Lyn Kelley
-
Publication number: 20090324799Abstract: Continuously produced algae is seeded into the waste streams by the use of 4 or more photo bio-reactors. The algae so produced manufacture oils and fats inside their cells from nutrients in the waste and the process of photosynthesis. Their growth is enhanced by the use of screens, both fixed and movable. These algae adhere to the screens or to the long chain algae attached there to. Algae removed from the raceway bio-reactor are killed by repeated application of heavy rollers over leveled out extracted algae cells. The dead algae are covered with recycled process waste water which goes to one of more oil/water separators and then to storage tanks that contain bio-diesel oil fraction, to waste water tanks and to storage bins for solid waste dead cell material removed.Type: ApplicationFiled: May 14, 2009Publication date: December 31, 2009Inventors: Robert Michael Hartman, Henry Brockenton Thomas, Dale Anthony Casamatta, Walter Pendley Bussells, Leo Hartman
-
Publication number: 20090314046Abstract: This invention is related to methods for the production of high phosphorus fertilizer products from waste products. In particular, the method describes the production of liquid and dry fertilizer products produced from the incineration of wastewater treatment sludges utilizing biological phosphorus removal (Bio-P). The fertilizers produced can be used interchangeably for commercial purposes either directly as a fertilizer product, or mixed with other conventional products to produce custom blended fertilizers for particular purposes.Type: ApplicationFiled: June 18, 2009Publication date: December 24, 2009Inventors: Michael Rieth, Claude Anderson
-
Publication number: 20090293568Abstract: A method and system for making solid fuel from brown grease includes providing brown grease, dewatering the brown grease, and combining the dewatered brown grease with a combustible material under conditions effective to make a solid fuel. A method and system for making a fertilizer material from sewage sludge includes providing sewage sludge, providing steam generated by combusting a fuel comprising brown grease, and contacting the sewage sludge with the steam under conditions effective to dewater the sewage sludge and render a fertilizer material.Type: ApplicationFiled: August 7, 2009Publication date: December 3, 2009Applicant: DESTEGO BOATS, INC.Inventor: Steven J. Macchio
-
Patent number: 7591952Abstract: A product and apparatus for cleaning water or industrial and sewage waste water includes a mixture of diatomite that is heated and stirred to impart an enhanced negative electrical charge to the diatomite. A mixture of approximately 50% aluminium chloride (AlCl3) by volume is blended to provide a powder mixture for use as a flocculant in the system. According to a modification, the charged diatomite is instead blended with a mixture of approximately 50% ferric chloride (FeCl3) by volume and is stored in liquid form for later use as a flocculent in the system. From one to five percent, by volume, of polyacrylamide is preferably added to the mixture for use in sewage waste water treatment applications. An efficient system for reacting either the mixture or separately adding the diatomite and the metallic chloride to the water is described.Type: GrantFiled: July 9, 2007Date of Patent: September 22, 2009Inventor: Wing Yip Young
-
Publication number: 20090223266Abstract: The present invention relates to an environmentally friendly method for deodorizing and rendering innocuous biologically contaminated sludge or slurry—primarily municipal wastewater sludge or liquid manure—containing up to 10% of solid matter with aerobic stabilization. The method comprises adding adsorbent carbonaceous mineral material having a particle size of less than or equal to 5 mm to the sludge or slurry and processing the obtained mixture by wet grinding to form a stable suspension in such a way that the solid content of the mixture is ground to particles having a particle size of less than 200 ?m and the living organisms are lysed.Type: ApplicationFiled: October 11, 2005Publication date: September 10, 2009Applicant: COMPAT-LINCENCIA KFTInventors: Janos Stadler, Peter Szabo, Ferenc Puskas
-
Publication number: 20090090152Abstract: Systems and methods for managing and disinfecting excrement material. A device includes a biopolymer decomposition container. The method includes treating an excrement sample with a bioactive agent, providing oxygen to the bioactive agent, and disinfecting microorganisms present within the system. The system and method further provides a byproduct that may be used to enrich soil.Type: ApplicationFiled: April 3, 2008Publication date: April 9, 2009Inventors: Charles W. Kallmann, Edward T. Woodruff, Kenneth S. Marsh
-
Patent number: 7513927Abstract: Disclosed herein are methods of inhibiting chemical self-heating in organic-containing materials by the addition of phosphate and or other buffering agents which control the pH of the organic-containing material and alter the organic nature of the material such that self-heating reaction is inhibited, and fertilizer produced by these methods. Also disclosed are methods for producing an improved, i.e., self-heating resistant, organically-enhanced inorganic fertilizer and methods for improving the management of soil pH and the interaction of fertilizers with the soil and associated agricultural crops.Type: GrantFiled: December 19, 2003Date of Patent: April 7, 2009Assignee: VitAG, LLCInventors: Ervin L. Faulmann, Jeffrey C. Burnham
-
Patent number: 7507577Abstract: The invention discloses a treatment apparatus for the excrement and a bio-toilet using the treatment apparatus. The treatment apparatus includes a tank, a reactor basin in the tank for containing the raw material and the excrement and having at least two parallel, concave parts having curved profile in the bottom part of the tank, a temperature control means for maintaining the temperature of the basin at a predetermined range; and at least two mixing devices which match with the at least two concave parts, each of them can rotate around a rotation shaft, the helical blade stirrer secured to the rotation shaft by a plurality of spokes. The bio-toilet is waterless, and thus a large quantity of water can be saved and the pollution of the environment due to the drainage of sewage can be avoided. Furthermore, treated by the treatment apparatus of the present invention, the microorganisms and the organic materials are combined and converted into stable loosen soil and the organic components.Type: GrantFiled: January 13, 2004Date of Patent: March 24, 2009Inventor: Andy Ming Fen Tung
-
Patent number: 7504035Abstract: A method of treating putrescible cakes to reduce the E. Coli and odor present in the cake and prevent further odor generation comprising the step of maintaining the cake under substantially anoxic condition in the presence of ammonium and/or nitrate moieties at pH 7.5 to pH 10.5 for a period of more than 1 day, the cake having a solids content of between 20% to 75% by weight.Type: GrantFiled: September 28, 2006Date of Patent: March 17, 2009Assignee: United Utilities PLCInventors: Son Le, Duc Do
-
Publication number: 20090013742Abstract: Particular aspects provide a method for recovering phosphate, comprising: obtaining an effluent or wastewater, etc. having calcium-sequestered phosphate; adding to the effluent or wastewater a calcium chelating or sequestration agent suitable to chelate or sequester Ca++ ions from the calcium-sequestered phosphate to facilitate release of phosphate from the calcium-sequestered phosphate; transferring, facilitated by said Ca++ ion capture and in the presence of sufficient concentrations of NH4+ and Mg2 ions, of the phosphate into struvite (magnesium ammonium phosphate hexahydrate or MgNH4PO4.6H2O), or hydrated magnesium ammonium complex of phosphate; and recovering the struvite, or the formed hydrated magnesium ammonium complex. Preferably, the method further comprises acidification of the effluent or wastewater to facilitate release of Ca++ ions from the calcium-sequestered phosphate and chelation of sequestration of the Ca++ ions by the calcium chelating or sequestration agent.Type: ApplicationFiled: July 14, 2008Publication date: January 15, 2009Applicants: Washington State University Research Foundation, Multiform Harvest, Inc.Inventors: Tianxi Zhang, Keith E. Bowers, Joseph H. Harrison, Shulin Chen
-
Patent number: 7442224Abstract: Fertilizer compositions for plant production are described, comprised of decontaminated manure and Bacillus spores, preferably a humic acid derived from lignite and, optionally, one or more of N compounds, P compounds, K compounds, and combinations of two or more of these compounds. Preferred compositions are those wherein the ingredients are blended into an admixture resulting in a granular product. Other preferred compositions are those blended into an admixture resulting in a powdered product. Preferably, the ingredients are formed into hardened prills or pellets. Processes for production and use are also presented.Type: GrantFiled: February 22, 2005Date of Patent: October 28, 2008Assignee: Microbes, Inc.Inventor: Randolph S. Porubcan
-
Publication number: 20080257001Abstract: The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.Type: ApplicationFiled: December 16, 2005Publication date: October 23, 2008Applicant: Rhodia LimitedInventors: Stephanie Edmunds, Paul Douglas Gilbert, Robert Eric Talbot
-
Patent number: 7425271Abstract: Sludge can be treated by placing it in a carrier sized for bulk shipment of sludge by road or by rail. An antipathogenic substance such as lime is mixed into the sludge located in the carrier in order to treat pathogens in the sludge. At least one mixer adapted for mixing sludge throughout the carrier is employed. A dispenser such as a conduit or a loader bucket can dispense the antipathogenic substance so that the mixer can mix the substance with the sludge. The sludge is transported in the carrier either before or after the mixing with the antipathogenic substance. The mixture of sludge and antipathogenic substance is allowed to remain in the carrier long enough to treat pathogens with the substance before unloading the sludge from the carrier at a destination established for utilization, storage, transfer or disposal of the sludge.Type: GrantFiled: November 3, 2005Date of Patent: September 16, 2008Inventor: Robert Longo
-
Publication number: 20080209968Abstract: The present invention relates to a process for treating wastewater containing suspended solids comprising adding to the wastewater a treating substance in an amount sufficient to enhance at least one of (a) the settling rate of the solids, (b) the bulk density of the solids and (c) the filterability of the solids, said treating substance being selected from the group consisting of (i) bauxite refinery residue known as red mud, and (ii) red mud that has been at least partially reacted with calcium and/or magnesium ions so as to have a reaction pH, when mixed with five times its weight of water, of less than 10.5. In addition, the invention relates to processes for reducing the concentration of dissolved phosphorus-containing species in wastewater, for decreasing the odour of a material having an odour due to the presence of one or more sulphur-containing substances and for decreasing the propensity to develop odours and a composting process.Type: ApplicationFiled: August 27, 2003Publication date: September 4, 2008Applicant: NAUVEAU TECHNOLOGY INVESTMENTS LTD.Inventors: Daniel Maxwell Drew, Alfred Norman Ducksbury, Darryl K. Josey
-
Patent number: 7361283Abstract: Contaminated waste streams or soil or sludge is subjected to a first treatment stage with an acid liquor at a pH below 2 and at a solids content from 5 to 30%; then the liquid and solid phases from the first treatment stage are separated; the solids from the first treatment stage are mixed with a fresh acid liquor at a pH below 2 and a solids content from 5 to 30%; the liquid and solid phases from the second treatment stage are separated; the liquor separated from the first treatment stage is reacted with a base to precipitate the metals; the precipitated metals are separated and the liquor is recycled for reuse in the process; the solids separated from the second treatment stage are neutralized to adjust the pH to a level acceptable for a soil conditioner or fertilizer or other customized products; and the liquor from the second stage is used as the acidic liquor in the first treatment stage.Type: GrantFiled: January 19, 2004Date of Patent: April 22, 2008Assignee: Australian Organic Resources Pty. Ltd.Inventors: Bodo Heller, Christopher Michael Starks
-
Patent number: 7169204Abstract: An improved process for enhancing the plant nutrient value of relatively low analysis organic waste material (e.g., sewage sludge) involves treating the waste material with an acid and base in a pipe-cross reactor. The process more particularly involves mixing the waste material with water to form a slurry (or initially taking the waste material as a slurry); pumping the slurry to a pipe-cross reactor for reaction with a base, acid, and water to form a melt; spraying the melt onto a recycling bed of fines in a granulator, and flashing off the water contained in the melt as steam; rolling the melt onto recycled fine particles in a granulator to form granulated particles; and drying these granulated particles to form an enhanced plant nutrient value composition (e.g., a fertilizer or soil conditioner having a greater “NPK” value than the original relatively low analysis organic waste material).Type: GrantFiled: July 6, 2004Date of Patent: January 30, 2007Assignee: Environmental Technologies Capital Partners LLCInventors: Gary D. Greer, Gary L. Dahms
-
Patent number: 7135116Abstract: The present invention relates to a process for treating a wastewater comprising an ammonium ion species and a phosphorus ion species. The process comprises the steps of: (i) treating the effluent in a first stage of the process to convert the phosphorus to a phosphorus-containing salt; (ii) treating the wastewater in a second stage of the process to convert the ammonium ion species to gaseous ammonia; (iii) removing the struvite and/or other phosphorous containing salts from the effluent; and (iv) removing the gaseous ammonia from the wastewater.Type: GrantFiled: April 22, 2003Date of Patent: November 14, 2006Inventor: Kenneth Haggerty
-
Patent number: 7044994Abstract: Fertilizer compositions for plant production are described, comprised of decontaminated manure and Bacillus spores, preferably a humic acid derived from lignite and, optionally, one or more of N compounds, P compounds, K compounds, and combinations of two or more of these compounds. Preferred compositions are those wherein the ingredients are blended into an admixture resulting in a granular product. Other preferred compositions are those blended into an admixture resulting in a powdered product. Preferably, the ingredients are formed into hardened prills or pellets. Processes for production and use are also presented.Type: GrantFiled: February 22, 2005Date of Patent: May 16, 2006Assignee: Microbes, Inc.Inventor: Randolph S. Porubcan
-
Patent number: 6966941Abstract: An apparatus and method for treating organic waste sludge such as sewage sludge is disclosed wherein the sludge is first dewatered, moved to a day hopper for storage, and then successively passed through first and second reactors. As the sludge is passed through the first reactor, in a continuous fashion, the sludge and acid are thoroughly mixed and has the pH thereof substantially lowered due to the addition of acid in the first reactor. The sludge is then moved through the second reactor where the sludge is subjected to a base material to substantially raise the pH thereof. The treated sludge is then pumped from the second reactor to a pugmill and then to a dryer which dries the material. The dried material is then suitable for use as a fertilizer.Type: GrantFiled: November 11, 2002Date of Patent: November 22, 2005Assignee: BER Systems, Inc.Inventors: Marius Grobler, John A. Bewsey, Oliver O. Hart
-
Patent number: 6922941Abstract: A method for making a plant-cultivating web or sheet from excretive sludge of domestic animals includes collecting sludge; concentrating the sludge; stabilizing the sludge; dehydrating the sludge; mixing the sludge with polyvinyl acetate (PVAC), wherein the mixing ratio between the sludge and PVAC is 4:1; drying a mixture of the sludge and PVAC; grinding the dried mixture into powders; mixing the powders with polyethylene, wherein the mixing ratio between the powders and polyethylene is 10%-80%: 90%-10%; adding high molecular weight starch into a mixture of the powders and polyethylene; and rolling the starch/mixture of the powders and polyethylene into a plate-cultivating web. An environment-protective and waste-reusing product is provided accordingly.Type: GrantFiled: April 24, 2003Date of Patent: August 2, 2005Assignee: Taiwan Livestock Research Institute, Council of AgricultureInventor: Meeng-Ter Koh
-
Patent number: 6878179Abstract: Fertilizer compositions for plant production are described, comprised of decontaminated manure and Bacillus spores, preferably a humic acid derived from lignite and, optionally, one or more of N compounds, P compounds, K compounds, and combinations of two or more of these compounds. Preferred compositions are those wherein the ingredients are blended into an admixture resulting in a granular product. Other preferred compositions are those blended into an admixture resulting in a powdered product. Preferably, the ingredients are formed into hardened prills or pellets. Processes for production and use are also presented.Type: GrantFiled: December 31, 2001Date of Patent: April 12, 2005Assignee: Microbes, Inc.Inventor: Randolph S. Porubcan
-
Patent number: 6863826Abstract: Animal waste such as fecal material from swine, chicken, turkey, and cattle is converted into useful forms such as fertilizer, other types of soil builders, and even nutrient feed additives. Devices, systems, and methods are provided that allow economical conversion and in many instances, alleviate the production and release of undesirable gases such as sulfide and ammonia. In one embodiment, undesirable anaerobic and facultative anaerobic bacteria are killed at a greater rate than desirable soil compatible aerobic bacteria. The use of low temperature killing diminishes off gassing commonly associated with other techniques, and the use of gas trapping additives such as zeolites provides enhanced soil building qualities such as slow release of nitrogen and slow release of moisture to soil. The methods allow convenient adjustment of composition, allowing conversion of waste into tailored designer fertilizer suited for particular soils.Type: GrantFiled: November 25, 2003Date of Patent: March 8, 2005Inventor: Richard G. Sheets
-
Patent number: 6800109Abstract: An organic waste treatment process, for treating pathogen containing organic sludge and producing pathogen free liquid acidic fertilizer. Concentrated sulfuric acid is added to the organic sludge on a one-to-one basis with solids contained within the sludge. The concentrated sulfuric acid reacts with the organic sludge to neutralize pathogens by carbonizing the sludge, pasteurizing the sludge through heat of hydration, and chemically disinfecting the sludge through the production of sulfur dioxide. An efficient acidic liquid fertilizer is created by neutralizing the pathogens, by reacting with phospholipids and proteins to create phosphoric acid and nitric acid, and by a reduction in mass and volume through the production of waste gases that are allowed to escape.Type: GrantFiled: May 3, 2002Date of Patent: October 5, 2004Inventors: Adelbert Carlen, Manuel Diaz
-
Patent number: 6777469Abstract: Aqueous or solid nitrogen containing compound compounds are produced by heating urea with wet solid sewer sludge thereby producing a urea-urea condensate-sewer sludge composition in a process to dry out the sewer sludge. The urea reacts with itself and with the compounds in the sewer sludge. The urea and/or urea condensate reacts with the sulfur containing compounds thereby reducing the odor from heating the sewer sludge. The urea-urea condensate-sewer sludge composition is useful as a bio-fertilizer, may be utilized to fight grass, forest, building fires, flame retard other flammable organic material by applying it on or incorporating it in these flammable organic materials and may be reacted with aldehydes to produce resins. Carbonization auxiliaries, such as phosphorus containing compounds, metal containing compounds that will accelerate carbonization, heat reflector, surfactant and fillers may be added to or reacted with the aqueous or solid urea-urea condensate-sewer sludge composition.Type: GrantFiled: October 9, 2001Date of Patent: August 17, 2004Inventor: David H. Blount
-
Patent number: 6767381Abstract: Method of producing compost tea by passing an aqueous solution over and through a basket containing compost. This flow leaches and washes microorganisms and nutrients from compost and other organisms and nutrient-rich materials from the basket into the culture tank. The culture tank collects and cultures microorganisms and nutrients, creating compost tea. Compressed air is used to provide circulation instead of mechanical pumps, which can injure the organisms as they pass through.Type: GrantFiled: December 27, 2001Date of Patent: July 27, 2004Inventor: Theodore C. Huhn
-
Patent number: 6758879Abstract: An improved process for enhancing the plant nutrient value of relatively low analysis organic waste material (e.g., sewage sludge) involves treating the waste material with an acid and base in a pipe-cross reactor. The process more particularly involves mixing the waste material with water to form a slurry (or initially taking the waste material as a slurry); pumping the slurry to a pipe-cross reactor for reaction with a base, acid, and water to form a melt; spraying the melt onto a recycling bed of fines in a granulator, and flashing off the water contained in the melt as steam; rolling the melt onto recycled fine particles in a granulator to form granulated particles; and drying these granulated particles to form an enhanced plant nutrient value composition (e.g., a fertilizer or soil conditioner having a greater “NPK” value than the original relatively low analysis organic waste material).Type: GrantFiled: December 12, 2000Date of Patent: July 6, 2004Assignee: Unity, Inc.Inventors: Gary D. Greer, Gary L. Dahms
-
Patent number: 6752849Abstract: Disclosed is a method of disinfecting and stabilizing organic wastes wherein organic waste is intimately mixed with one or more mineral by-products to produce a mixture having a pH of less than about 9. The mixture is heated and dried to produce a stable, granular bio-mineral product that may be used for example, as a fertilizer, soil amendment or as a soil substitute. In some embodiments, at least a portion of the heat for heating and/or drying the mixture is provided by residual heat in at least one of the one or more mineral by-products. Also provided are stable, granular bio-mineral products formed by the methods of the present invention and fertilizers, soil amendments, and soil substitutes that include these stable, granular bio-mineral products. Further provided are systems for disinfecting and stabilizing organic waste, and systems for making a stable, granular bio-mineral product.Type: GrantFiled: November 19, 2002Date of Patent: June 22, 2004Assignee: N-Viro International CorporationInventors: Terry J. Logan, Ervin L. Faulmann
-
Patent number: 6752848Abstract: A method of disinfecting and stabilizing organic wastes where organic waste is intimately mixed with one or more mineral by-products to produce a mixture having a pH of less than about 9. The mixture is heated and dried to produce a stable, granular bio-mineral product that may be used for example, as a fertilizer, soil amendment or as a soil substitute. Also provided are stable, granular bio-mineral products formed by the methods of the present invention and fertilizers, soil amendments, and soil substitutes that include these stable, granular bio-mineral products. Further provided are systems for disinfecting and stabilizing organic waste, and systems for making a stable, granular bio-mineral product.Type: GrantFiled: August 8, 2001Date of Patent: June 22, 2004Assignee: N-Viro International CorporationInventors: Terry J. Logan, Ervin L. Faulmann
-
Patent number: 6733558Abstract: A beneficiated sludge solids composition comprising digested municipal sewage sludge, ammonium sulfate, and superphosphoric acid. Alternatively, a beneficiated sludge solids composition comprising digested municipal sewage sludge, ammonium sulfate, mineral acid and phosphate salt. The constituents of the beneficiated sludge solids composition of the invention act synergistically to increase economic value through increased fertilization values of nitrogen and phosphorous, decreased flammability and autocombustibility, decreased ammonia evolution on drying and decreased corrosibility. The beneficiated sludge solids composition is capable of being produced in present sewage treatment facilities.Type: GrantFiled: May 15, 2001Date of Patent: May 11, 2004Assignee: Honeywell International Inc.Inventor: Ronald Earl Highsmith
-
Patent number: 6682578Abstract: Integrated waste treatment and fertilizer and feed supplement production methods to be implemented at organic waste source sites, at remote treatment sites, or partially at the organic waste source site and at a remote location, whether in small or large scale operations. The methods are suitable for retrofitting existing organic waste sources and for treating the organic waste generated by a single source or by a plurality of sources.Type: GrantFiled: September 6, 2002Date of Patent: January 27, 2004Assignee: Crystal Peak Technologies, LLCInventor: Larry P. Sower
-
Patent number: 6569342Abstract: A method is providing for treating waters, such as standing and flowing waters and waste waters, soils, sediments and/or silts. At least one alkaline earth metal peroxide is brought into contact with such waters or the like, especially to effect immobilization of phosphates and heavy metals except manganese and iron therein.Type: GrantFiled: November 14, 2000Date of Patent: May 27, 2003Inventors: Thomas Willuweit, Stefan Nowicki, Kai-Uwe Ulrich, Gerald Jakobson
-
Patent number: 6565744Abstract: The present invention provides treatment of wastewater containing oil, organic and inorganic industrial compounds, urea, and e.t.c. The resulting products will be purified water, dry fertilizer, pure carbomide, uncontaminated gas and liquid fuel, and other products that can be separated from the concentrate after ultrafiltration. In order to accomplish those and other objectives the present invention improves the system for cleaning wastewater by subjecting the wastewater to a magnetic field and heating it before the initial settling process. In addition, before ultrafiltration, the liquid is treated in an electroflotation device. The wastewater cleaning system can also be comprised of a urea separator for separating urea from other products.Type: GrantFiled: September 7, 2001Date of Patent: May 20, 2003Inventors: Mikhail Levitin, Boris Khaytin
-
Patent number: 6503287Abstract: A soil distribution system, and particularly a method of blowing topsoil, using an improved topsoil blend and specialized equipment, onto selected surfaces, including sloped surfaces. The topsoil blend may be placed either via traditional or selected placement means including placement by blowing the mixture into place. The topsoil blend may be blown through a manipulatable distribution line onto the surface, including areas which may be substantially inaccessible. A selected aerobic compost tea may be combined with the soil distribution operations such that the tea is distributed and intermixed with the soil as the soil is blown into place. Greensand may be distributed over the surface prior to blowing the soil in place and the soil is then distributed over the layer of greensand.Type: GrantFiled: April 7, 2000Date of Patent: January 7, 2003Inventor: Hendrikus Schraven
-
Patent number: 6497741Abstract: Integrated waste treatment and fertilizer and feed supplement production methods to be implemented at organic waste source sites, at remote treatment sites, or partially at the organic waste source site and at a remote location, whether in small or large scale operations. The methods are suitable for retrofitting existing organic waste sources and for treating the organic waste generated by a single source or by a plurality of sources.Type: GrantFiled: May 7, 2002Date of Patent: December 24, 2002Assignee: Crystal Peak FarmsInventor: Larry P. Sower
-
Patent number: 6409788Abstract: Integrated waste treatment and fertilizer and feed supplement production methods to be implemented at organic waste source sites, at remote treatment sites, or partially at the organic waste source site and at a remote location, whether in small or large scale operations. The methods are suitable for retrofitting existing organic waste sources and for treating the organic waste generated by a single source or by a plurality of sources.Type: GrantFiled: January 22, 1999Date of Patent: June 25, 2002Assignee: Crystal Peak FarmsInventor: Larry P. Sower
-
Patent number: 6407038Abstract: A method for controlling Tylenchid plant-parasitic nematodes through application of an effective amount of an alkaline-stabilized sludge is described. In accordance with particular embodiments, the alkaline-stabilized sludge may be applied to the plant, seed or locus thereof.Type: GrantFiled: June 16, 2000Date of Patent: June 18, 2002Assignee: Her Majesty the Queen in right of Canada, as represented by c/o Minister of Agriculture and Agri-Food CanadaInventors: Thomas William Welacky, Edward Topp
-
Patent number: 6406510Abstract: This invention relates to methods for treating wastewater sludge cake with acid and calcium carbonate under acidic, low heat conditions to produce a stable, soil-like or granular, finished product containing calcium carbonate, useful as a nitrogen fertilizer, synthetic soil component or soil conditioner for pH control.Type: GrantFiled: November 17, 2000Date of Patent: June 18, 2002Assignee: Unified Environmental Services Group, LLCInventor: Jeffrey C. Burnham
-
Patent number: 6402801Abstract: A method is described for treating animal manures and other organic wastes to destroy pathogens, reduce noxious odors, and immobilize water-soluble pollutants, thereby producing a pasteurized, granular product useful as a soil amendment. In a described implementation, the solids content of the organic waste is raised to a predetermined level to create air-filled pore space, and the pH is raised sufficiently to liberate endogenous gaseous ammonia in the air-filled pores for a predetermined time. The level of gaseous ammonia is sufficient to significantly destroy pathogens in the manure. In addition, alkaline material and/or iron salts are added to the organic waste to render certain water-soluble pollutants insoluble.Type: GrantFiled: August 4, 2000Date of Patent: June 11, 2002Assignee: N-Viro International Corp.Inventors: Ervin Louis Faulmann, Terry J. Logan
-
Patent number: 6398840Abstract: A process for treating sludge comprising the addition of sulphuric acid and anhydrous ammonium to the sludge inside a granulator in order to produce an exothermic reaction which generates sufficient heat to evaporate the water contained in the sludge, thus eliminating all the pathogen and non pathogen microorganism, and producing a dry product having a low pH, free of polluting agents and a high commercial value.Type: GrantFiled: June 8, 2000Date of Patent: June 4, 2002Inventors: Pedro Orta-Castro, José Cabello-Fuentes
-
Publication number: 20020059818Abstract: A process for treating an organohalogen compound-containing soil or ash of the present invention, comprises:Type: ApplicationFiled: September 17, 2001Publication date: May 23, 2002Inventors: Tomoyuki Imai, Satoshi Hatakeyama, Toshiki Matsui, Yasuhiko Fujii, Tomoko Okita, Toshiyuki Hakata
-
Patent number: 6298576Abstract: A cage type compactor and dryer apparatus have a cylindrical body (10) formed by conduits (11) arranged according to the its generatrix lines and run through by a heat transfer fluid intended to heat the waste material contained therein (textile or foodstuff wastes, municipal solid wastes). The individual conduits (11) are spaced apart so as to form vapour outflow paths for the water vapour, having longitudinal dimension corresponding to the whole heating length of the cylindrical body (10). Pressure plates (14) form the mobile bases of the cylindrical body (10) in order to generate the needed axial pressure. Suitable hoops (12) arranged in spaced apart relation constrain said conduits (11) in order to withstand the radial components of the longitudinal forces. The ground connections of the cylindrical body (10), when it is horizontally mounted, are realised by running trolleys (15) aimed at minimising the stresses generated by the temperature variations.Type: GrantFiled: September 15, 2000Date of Patent: October 9, 2001Inventor: Antonio La Gioia
-
Patent number: 6248148Abstract: A method is described for disinfecting and deodorizing animal manures and other organic wastes to produce a pasteurized, granular product for use as a soil amendment. The solids content of the animal manure is raised to a predetermined level to create air-filled pore space, and the pH is raised sufficient to liberate endogenous gaseous ammonia in the air-filled pores for a predetermined time. The level of gaseous ammonia is sufficient to significantly destroy pathogens in the manure.Type: GrantFiled: May 1, 1998Date of Patent: June 19, 2001Assignee: N-Viro International CorporationInventors: Ervin Louis Faulmann, Terry J. Logan
-
Patent number: 6197081Abstract: A method for treating infectious organic waste material such as dewatered sewage sludge, mixed organic wastes and animal waste. The method includes mixing the infectious organic waste material with a comminuted organic fibrous material to provide a reaction mixture. An oxidizing agent is an optional additive. The reaction mixture is heated in a hyperbaric reactor vessel at an elevated pressure and temperature for a time sufficient to create saturated steam and to produce a substantially denatured product containing inactivated pathogenic agents. The denatured product is dehydrated to produce a free-flowing solid product that may be used in various agricultural, industrial or commercial applications. Odor is controlled so that malodorous compounds are not released to the atmosphere.Type: GrantFiled: March 18, 1999Date of Patent: March 6, 2001Inventor: Erick Schmidt
-
Patent number: 6174472Abstract: The instant process forms a pellet comprised of at least sixty percent composted sewer sludge, up to forty percent cellulosic plant material and up to fifteen percent nutrient materials and chemicals for soil enhancement and plant nutrition that provides a combination of both long and short term beneficiation of soil and herbage and has no pathogenic microbes above regulatory ranges. The composted sewer sludge comprises primary sewer sludge admixed with cellulosic plant material that is thermally treated at temperatures between 140 and 180 degrees F. during composting to destroy mesophyllic pathogenic microbes and the viability of reproducible botanicals including seeds, but leave most thermophilic soil enhancing microbes in a viable state. Additional fibrous cellulosic material and chemicals are admixed with the composted sewer sludge and the mixture pelletized in a thermal process that raises pellet temperature to between 140 to 180 degrees F.Type: GrantFiled: September 3, 1998Date of Patent: January 16, 2001Inventors: Ernest W. Johnson, Derek D. Nelson
-
Patent number: 6159263Abstract: An improved process for enhancing the plant nutrient value of relatively low analysis organic waste material (e.g., sewage sludge) involves treating the waste material with an acid and base in a pipe-cross reactor. The process more particularly involves mixing the waste material with water to form a slurry (or initially taking the waste material as a slurry); pumping the slurry to a pipe-cross reactor for reaction with a base, acid, and water to form a melt; spraying the melt onto a recycling bed of fines in a granulator, and flashing off the water contained in the melt as steam; rolling the melt onto recycled fine particles in a granulator to form granulated particles; and drying these granulated particles to form an enhanced plant nutrient value composition (e.g., a fertilizer or soil conditioner having a greater "NPK" value than the original relatively low analysis organic waste material).Type: GrantFiled: October 12, 1999Date of Patent: December 12, 2000Assignee: Unity, Inc.Inventors: Gary D. Greer, Gary L. Dahms
-
Patent number: 6123747Abstract: An apparatus and method for manufacturing barnyard manure using sewage and night-soil sludge for use in farmlands and flower gardens so as to prevent secondary contamination of the environment quickly, at a low cost, and with high efficiency.Type: GrantFiled: October 13, 1998Date of Patent: September 26, 2000Assignee: Hyundai Engineering Co., Ltd.Inventors: Dong Wook Kim, Jae Kyung Jo, No Hyuk Kwak, Jae Gun Bae, Chung Hwan Oh, Youn Gun Chin, Yong Sik Lee
-
Patent number: 6117203Abstract: A pathogen reduction system for a sludge treatment process that employees multiple reactors operating in a batch mode to reduce pathogen levels in the sludge while providing a continuous flow of pathogen reduced sludge to a digester. In addition, the present invention entails an efficient heat exchanger for heating and cooling the sludge being treated in the above process. In particular, the heat exchanger is of the counterflow type and includes a helical coil confined in an annular chamber for transmitting one media and wherein the helical coil is spaced so as to form another helical flow channel that is defined by the annular chamber and the helical coil itself. Consequentially, one media is directed through the helical coil while another media is directed through the flow channel that is defined in part by the helical coil.Type: GrantFiled: November 10, 1997Date of Patent: September 12, 2000Assignee: Kruger, Inc.Inventors: Karsten Buchhave, Edvin Andersen
-
Patent number: 6074451Abstract: A microorganism fertilizer which causes in the soil a phenomenal multiplication of fluorescent Pseudomonas that have a superior effect in preventing the common scab of potato. The microorganism fertilizer is obtained such that medium-temperature and high-temperature Actinomycetes are used as seed bacteria and cultured while being spread/agitated in an organic substance such as livestock manure, etc. in an isolated propagation bed. The thus obtained microorganism fertilizer can be used as a countermeasure against environmental pollution.Type: GrantFiled: April 8, 1993Date of Patent: June 13, 2000Assignee: Towakagaku Kabushiki KaishaInventor: Yasuhiro Goda
-
Patent number: 6056800Abstract: A method for composting organic waste materials utilizing aerobic and anaerobic decomposition processes simultaneously is disclosed. The method of the present invention is carried out by forming a compost pile of organic waste material which will decompose aerobically by microbes indigenous to the waste material. A cavity of predetermined size is formed within the compost heap and filled with alternating layers of organic waste material which will decompose anaerobically followed by a layer of waste material which will decompose aerobically until the cavity is filled. The parameters of the decomposition processes including temperature, water content, aeration, and moisture percolation are monitored to ensure that adequate conditions are met for both decomposition processes to proceed simultaneously. After a predetermined time interval has passed, the organic waste materials deposited within the central cavity of the compost heap are harvested to obtain a nutrient rich, soil additive.Type: GrantFiled: February 19, 1999Date of Patent: May 2, 2000Inventor: William J. Carter, IV