Class / Patent application number | Description | Number of patent applications / Date published |
071012000 | From sewage or night soil | 53 |
20080209968 | Processes for Treatment of Wastewater, Separation, Deodorisation and Re-Use of Biosolids - 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. | 09-04-2008 |
20080257001 | Treatment of Sewage Sludges - 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. | 10-23-2008 |
20090013742 | COMPOSITIONS AND METHODS FOR WASTEWATER TREATMENT - 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 | 01-15-2009 |
20090090152 | SYSTEMS AND METHODS FOR PROVIDING CONTROL AND DISPOSAL OF WASTE MATERIALS - 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. | 04-09-2009 |
20090293568 | SOLID FUEL FROM BROWN GREASE AND METHODS AND SYSTEMS FOR BROWN GREASE AND SEWAGE SLUDGE RECYCLING - 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. | 12-03-2009 |
20090314046 | PRODUCTION OF A HIGH PHOSPHORUS FERTILIZER PRODUCT - 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. | 12-24-2009 |
20100000277 | GRANULATED PLANT NUTRIENT - 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. | 01-07-2010 |
20100011823 | Organic recycling with a pipe-cross or tubular reactor - The invention is directed to a 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 or tubular 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 in a 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). The process further includes drawing off the fumes from the granulator, passing them through a dryer with the granulated particles, and subsequently oxidizing the fumes to eliminate volatile organic compounds and/or gaseous hydrocarbon pollutants be converting such into carbon dioxide and water vapor. | 01-21-2010 |
20100132421 | METHOD OF PRODUCING FERTILIZER OUT OF SLUDGE - A method of producing fertilizer out of sludge, in which method sludge is heated with superheated steam for achieving hygienization to destroy pathogenic microorganisms. In the method, the sludge is heated to a temperature of 60 to 100° C. with superheated steam having a temperature of 200 to 600° C. to activate increasing of the amount of soluble carbon in the sludge and to restart biodegradation of the sludge by using non-pathogenic microorganisms still remaining in the sludge after the heating. | 06-03-2010 |
20100139346 | BENEFICIATED, HEAT-DRIED BIOSOLID PELLETS - This invention is directed to systems, devices and methods for modifying the process of producing dried biosolids pellets or granules into beneficiated inorganically-augmented bioorganic fertilizer. The present invention describes a method to beneficiate heat-dried biosolids or sludge pellets or granules as presently manufactured by municipalities or companies from a) dewatered municipal wastewater biosolids or sludges within the municipal wastewater treatment plant heat-dried biosolids production facility or from b) finished dry heat dried biosolids pellets or granules in a separate manufacturing facility from the municipal wastewater treatment plant to produce a fertilizer containing sufficient organic and inorganic plant nutrients to be valuable and saleable into the commercial agricultural industry. The present invention describes beneficiation methods to increase the plant nutrient content to a level which permits the finished beneficiated dried biosolids pellet or granule product to compete in the commercial agricultural fertilizer marketplace and also to reduce the odors associated with traditionally-produced heat dried biosolids. | 06-10-2010 |
20100186469 | METHOD AND DEVICE FOR TREATMENT OF LIQUID MATERIALS BASED ON ORGANIC WASTE PRODUCTS - The present invention relates to a method and arrangement for the treatment of liquid material based on organic waste products, in particular sludge from sewage disposal plants and the like, wherein the sludge material is added and mixed with chemicals, in particular sulphuric acid, nitric acid, and/or ammonia, during the vaporization and degasification of liquid from the material to increase the solids content thereof. The present invention is characterized, inter alia, in that the material is continuously introduced at the upper part of a vertical mixing vessel ( | 07-29-2010 |
20100218573 | SYSTEM AND METHOD FOR PRODUCING AN ORGANIC BASED FERTILIZER AND USABLE WATER FROM ANIMAL WASTE - A method of producing an organic based fertilizer and usable water from animal waste includes the step of separating the animal waste into liquid waste and solid waste. The liquid waste is clarified to produce a supernatant and a sludge which is pressed into a filter cake. Ammonia is extracted from the supernatant to produce ammonium sulfate and an aqueous solution. The aqueous solution is filtered to produce a concentrate and water filtrate. The water filtrate may be used as drinking and washing water. The filter cake, ammonium sulfate, and concentrate may be used to supplement to the solid waste which is pelletized into the organic based fertilizer. In alternative embodiments a portion of the supernatant and aqueous solution may be used as a liquid fertilizer. | 09-02-2010 |
20100218574 | METHOD FOR TREATING BIO-ORGANIC AND WASTEWATER SLUDGES - An improved process of treating sludge to provide a stable product for use as a beneficial soil or fertilizer for agricultural lands which includes the steps (a) mixing the sludge with at least a first alkaline material and a second alkaline material in an amount sufficient to (i) raise the solids content of the mixed material to at least 50% W/W; (ii) raise the pH to at least 12; and (iii) raise the temperature to at least 70° C. by exothermic reaction of the alkaline materials with the water in the sludge; and (b) pasteurizing the mixed material at (i) at least 70° C. for at least 30 mins. and at least pH12 for at least 2 hrs.; and (ii) at least pH 11.5 for an additional 22 hrs., to provide the stable pasteurized product. The process and apparatus is readily adapted for mobility on suitable transportation. | 09-02-2010 |
20100223969 | LOWERING VISCOSITY OF BIOSOLIDS - Sewage sludge is dewatered to a cake-like state. The viscosity of the sludge is lowered by admixing a quantity of urea, urea-ammonium-nitrate, or other nitrogen-containing material, in with the dewatered sludge. The treatment also removes pathogens, and renders the product suitable for use as a fertilizer. | 09-09-2010 |
20100288003 | Organic Recycling With Metal Addition - The invention is directed to methods for producing a granular nitrogen fertilizer from an organic material comprising adding a metallic salt to said organic material to form a slurry. Preferably the organic material comprises dewatered biosolids and contains water from a scrubber. Metallic salts that can be used comprise a salt of iron, zinc, or a mixture thereof. Preferred iron salts comprises ferric sulfate or ferric oxide, and preferred zinc salts comprises zinc sulfate or zinc oxide. Preferably, the metallic salt is mixed with an acid such as sulfuric acid to form an acidified metal salt. Slurry pH ranges from approximately 2-2.5. The acidified metal salt is added to the organic material in sufficient quantity to lower viscosity of the slurry such that the resulting fluid does not hinder fluid flow during operation. When the metallic salt comprises acidified ferric sulfate or ferrous sulfate, sufficient iron can be present to produce a fertilizer product with 0.1 weight percent to 10 weight percent iron sulfate calculated on a dry weight basis. The invention is also directed to fertilizer products made by the methods of the invention. Preferred products are granules and the metallic salt increases product hardness. Fertilizer granules preferably contain metal that is bioavailable to a plant when used as a fertilizer. Solubility of the metal of the product in water is enhanced, and the product is low staining. | 11-18-2010 |
20110005284 | WASTEWATER TREATMENT SYSTEM AND PROCESS INCLUDING IRRADIATION OF PRIMARY SOLIDS - The present invention provides a system and method for treating wastewater in which the majority of solids and biological oxygen demand compounds are separated from the wastewater feed using a primary separation process, to produce a solids phase and a water phase. The solids phase is irradiated to reduce the level of pathogens such that it is safe to use as a soil substitute and/or additive so that the solids can thus be disposed of in an environmentally-friendly manner. In additional embodiments, the solids that have been disinfected by radiation are mixed with a suitable inert filler material to produce a soil substitute, fertilizer, compost, or other soil additive. The liquid phase is treated in a substantially smaller system than would be required for treating the full-strength wastewater that can include a suspended media biological regeneration reactor system. The liquid treatment system can include a high flux adsorbent material treatment system integrated with a low flux adsorbent material biological regeneration reactor. | 01-13-2011 |
20110030431 | Soil Mediums and Alternative Fuel Mediums, Apparatus and Methods of Their Production and Uses Thereof - An apparatus is disclosed for converting sludges, wastes or a combination thereof to biosolids, including a) at least one heated air system, b) at least one trough arrangement, c) at least one auger system, wherein the at least one auger system is situated in the at least one trough arrangement to form a conveyor system, and d) at least one heat box enclosing at least part of the conveyor system. These apparatus can a) efficiently convert organic wastes and sludges into soil mediums or alternative fuel mediums; b) ensure that the soil mediums and alternative fuel mediums are non-odoriferous, non-pathogenic and/or virus-free; c) mass reduce large quantities of organic sludges and wastes; d) mass reduce organic wastes and sludges by a 5 to 1 ratio; e) produce soil mediums or alternative fuel mediums that are or approach Class A or “exceptional quality” rating making them safe to recycle, f) convert both solids and liquids to soil mediums or alternative fuel mediums, where the treated solids can be safely recycled to agriculture markets and liquids can be recycled as wash-down water, beneficially recycled for reuse in the manufacturing of the original product or recycled for irrigation, and/or g) reduce or significantly reduce the “footprint” of other conventional waste recycling apparatus by reducing the space/area these devices occupy. | 02-10-2011 |
20110067466 | SYSTEM FOR TREATING FAECES - An apparatus for the treatment of faeces, includes a tank ( | 03-24-2011 |
20110179841 | HIGH-RATE COMPOSTING PROCESS AND EQUIPMENT - The present invention addresses methods and equipments for a high-rate production and improvement of the quality of composts from organic wastes, by processes including Screening, Mechanical Pretreatment, Physical-Chemical Pretreatment, High-Rate Stabilization Process, High-Rate Activation Process, and Product Refining Processes, and adding seven types of chemical agents including: Wetting Agents, Debonding Agents, Organic Stabilization Agents, Inorganic Stabilization Agents, Fluffing Agents, Activation Agents, and Nutrient Agents in order to enhance six major properties which activated characteristics of composts: (a) moisture absorption and holding capability, (b) nutrients adsorption and holding capability, (c) soil particles holding and conserving capability, (d) soil air ventilation capability, (e) soil water transmission capability, and (f) soil thermal insulation capability, as well as other minor quality improvements such as complete sterilization of pathogens and parasites, detoxification of many hazardous chemical species, and removal of excess heavy metal contents, if any, from the activated composting products. | 07-28-2011 |
20110203338 | METHOD FOR SOLIDIFYING HIGH MOISTURE SLUDGE, SOLIDIFIED SLUDGE THEREFROM - A method for treating a high water content sludge is disclosed, where the method includes mixing into the high water content sludge, an effective amount of an ash composition. The effective amount of the ash composition is sufficient to convert a portion of the sludge and the ash composition into a treated sludge including an amount of a solidifying matrix to impart properties to a depth of the sludge sufficient to support commercial construction equipment. A treated sludge and sludge pits are also disclosed as is the ash composition used to form the treated sludge. | 08-25-2011 |
20110265533 | Organic Containing Sludge to Fertilizer Alkaline Conversion Process - This invention is directed to systems, devices and methods for treating organic-containing sludges and converting such sludges to high value fertilizers containing both inorganic and organic fertilizer components, which creates an inorganically-augmented bioorganic fertilizer. The invention describes methods to create a thixotrophic or paste-like material via the application of mixing energy to the organic sludge followed by an alkaline treatment and a subsequent ammoniation. The invention further describes a method to increase the plant nutrient content in the organic containing product to a level which permits the finished granular fertilizer product to compete in the commercial agricultural fertilizer marketplace. Further, the invention reduces odors associated with said organic-containing sludges. | 11-03-2011 |
20120131970 | Method for Making Fertilizer from Swine Feces/Urine by using Musca Domestica - A method for making fertilizer from swine feces/urine by using | 05-31-2012 |
20120240647 | PROCESS FOR THE DISPOSAL OF WASTES, PARTICULARLY OF SLUDGES DERIVING FROM WASTE WATER DEPURATION - Process for the disposal of wastes, comprising: performing an acid oxidizing hydrolysis of the incoming waste (charge); performing an alkaline oxidizing hydrolysis of the outgoing mass from the stage of acid oxidizing hydrolysis; chemically conditioning the outgoing mass from the stage of alkaline oxidizing hydrolysis by the addition of an acid reagent; separating any undissolved residue. This process, by comparison with other methods and technologies already known and in use, features the following advantages: superior effectiveness in reducing the weight of the waste; superior economy; total absence of ecological, environmental, hygiene and sanitary problems; total safety of personnel employed at the plants; enhancement for agricultural use of any exhausted residue which may be present at the end of the treatment. | 09-27-2012 |
20120247165 | Method of Integration of Concentration-Dehydration and Aerobic Air-drying of Sewage Sludge - A method of integration of concentration-dehydration and aerobic air-drying of sewage sludge comprises the following steps: (a) conditioning by an organic agent ( | 10-04-2012 |
20120272700 | NUTRIENT YIELDING BIO-RENEWABLE CONTROLLED RELEASE FERTILIZER COATINGS - Animal waste is processed to form a biomaterial that is employed as a coating layer for typical fertilizer particles. The biomaterial coating layer can be used neat or with additives and serves to do one or more or any combination of the following: (a) impart a slow or controlled release property to the fertilizer, (b) prevent or reduce the tendency of the fertilizer particles to cake together, or (c) prevent or reduce the tendency of the fertilizer particles to create dust. The biomaterial coating layer can also release nutrients when used as part of a fertilizer composition. | 11-01-2012 |
20120285211 | FERTILIZER COMPOSITION INCORPORATING FIBROUS MATERIAL FOR ENHANCED PARTICLE INTEGRITY - Fertilizer granules and methods of producing fertilizer granules. The fertilizer granules are formed from a fertilizer composition, such as a phosphate fertilizer, includes a fibrous material for the purpose of increasing the granule strength preventing or reducing attrition or dusting formation during storage, transport, and/or handling of the fertilizer. Dust formation can be reduced fifty percent or more. The base fertilizer composition can include a phosphate fertilizer, such as monoammonium phosphate (MAP) or diammonium phosphate (DAP), and optionally one or more micronutrients or secondary nutrients, such as elemental sulfur. The fibrous material is pulp or paper sludge, for example. | 11-15-2012 |
20130067973 | SHEARING FIBROUS BIO-SLUDGE - Paunch-sludge from an abattoir is mixed with the fatty DAF-float from an abattoir, and placed in a shearing vessel. The mixture of the two material thickens the medium in which the matted strands are contained, enabling shearing to be more effective; so much so that paunch-sludge can now be sheared to a homogeneous liquid. The technique can be used with other sludges and other fatty waste materials. | 03-21-2013 |
20130091913 | METHOD OF MAKING AN ACID-ABSORBING BIOSOLID COMPOSITION - The method of making an acid-absorbing biosolid composition provides a method for the use of recycled materials to produce an acid-absorbing composition that may then be recycled as a fertilizer after absorbing the acid. The method includes the steps of: collecting sewage sludge; drying the sewage sludge to remove water therefrom to form dried sludge; adding hydrochloric acid to the dried sludge to form a liquid intermediary product; heating the liquid intermediary product to produce a dried porous biomass; and mixing inorganic waste material with the dried porous biomass to produce the acid-absorbing biosolid composition. Thereafter, the acid-absorbing biosolid composition may be placed in a gas flow to absorb an acidic component therefrom; and then recycled for use as fertilizer following absorption of the acidic component from the gas flow. | 04-18-2013 |
20130091914 | METHOD OF MAKING AN ACID-ABSORBING BIOSOLID COMPOSITION - The method of making an acid-absorbing biosolid composition provides a method for the use of recycled materials to produce an acid-absorbing composition that may then be recycled as a fertilizer after absorbing the acid. The method includes the steps of: collecting sewage sludge; drying the sewage sludge to remove water therefrom to form dried sludge; adding hydrochloric acid to the dried sludge to form a liquid intermediary product; heating the liquid intermediary product to produce a dried porous biomass; and mixing inorganic waste material with the dried porous biomass to produce the acid-absorbing biosolid composition. Thereafter, the acid-absorbing biosolid composition may be placed in a gas flow to absorb an acidic component therefrom; and then recycled for use as fertilizer following absorption of the acidic component from the gas flow. | 04-18-2013 |
20130213101 | BIOCHAR - The invention provides for methods, devices, and systems for pyrolyzing biomass. A pyrolysis unit can be used for the pyrolysis of biomass to form gas, liquid, and solid products. The biomass materials can be selected such that an enhanced biochar is formed after pyrolysis. The biomass can be pyrolyzed under specified conditions such that a selected biochar core is formed. The pyrolysis process can form a stable biochar core that is inert and/or resistant to degradation. The biochar or biochar core can be functionalized to form a functionalized biochar or functionalized biochar core. Functionalization can include post-pyrolysis treatments such as supplementation with microbes or physical transformations including annealing and/or activation. | 08-22-2013 |
20130227997 | METHOD FOR SEPARATING LIQUID FROM SUSPENDED MATTER IN A SLUDGE AND DEVICE FOR SAME - The invention relates to a method for separating the liquid part from the suspended matter in a sludge supplied in a continuous flow at a flow rate of Q | 09-05-2013 |
20140137615 | CONTAMINANT-FREE FERTILIZER FROM LIQUIDIZED SEWAGE SLUDGE - Hydrophobic contaminants are removed from sludge that has been liquidized by violent shearing, by stirring a hydrophobic sorbent substance material into the sludge. After a period of time in which the contaminants are sorbed into the sorbent, the sorbent substance is separated from the sludge by gravity-settling, centrifuging, etc, where the sorbent is a liquid, or by filtration etc where the sorbent is a solid. Some sorbents have a melting point such that the sorbent can be liquid for good dispersal in heated sludge, and then can be solid when the sludge has cooled, whereby the sorbent can be removed e.g by filtration. Liquefaction by violent shearing causes the biosolids in the sludge to go into solution, which leaves the hydrophobic contaminants more available to be sorbed. | 05-22-2014 |
20140202222 | WASTEWATER SLUDGE TREATMENT DEVICE - A tank or bed has a plurality of sidewalls that create a bed cavity and a Fresnel panel frame that includes at least one Fresnel panel. The Fresnel panel frame may be adjacent to the bed cavity and may cover at least a portion of the bed cavity. An amount of sludge may be contained within the bed cavity. When placed in sunlight, the heat enhanced by the Fresnel panels may heat the sludge sufficiently for the sludge to be used as fertilizer. | 07-24-2014 |
20140216117 | Method for Reclaiming Usable Products from Biosolids - The method of reclaiming usable products from sludge is disclosed. A predetermined level of solvent within an extractor is heated, below boiling point, and dried sludge is immersed within the headed solvent. The solvent is a non-polar or polar aprotic solvents, such as ethyl acetate. The non-solid products, an oil/solvent mixture, within the sludge are separated and transferred to at least one evaporator with a concentration of between 5-25% oil in the solvent. The oil and solvent are is separated in one or more evaporators to remove approximately 80%-90%, and preferably 70%-95%, of the solvent. The solids are moved to a desolventizer for removal of the residual solvent and are then dried to a moisture content of below 25%, and preferably between 10 to 15%. | 08-07-2014 |
20140250962 | System and Method for Drying Biosolids and Enhancing the Value of Dried Biosolids - A system and process for drying biosolids and wherein nutrients and/or minerals are blended into partially dried biosolids. Further, the system and method compresses the mixture of biosolids and nutrients into a selected form and this is followed by completion of the drying process. In the end, a more uniform and higher value dried biosolids product is produced. | 09-11-2014 |
20140352378 | BIOCHAR - The invention provides for methods, devices, and systems for pyrolyzing biomass. A pyrolysis unit can be used for the pyrolysis of biomass to form gas, liquid, and solid products. The biomass materials can be selected such that an enhanced biochar is formed after pyrolysis. The biomass can be pyrolyzed under specified conditions such that a selected biochar core is formed. The pyrolysis process can form a stable biochar core that is inert and/or resistant to degradation. The biochar or biochar core can be functionalized to form a functionalized biochar or functionalized biochar core. Functionalization can include post-pyrolysis treatments such as supplementation with microbes or physical transformations including annealing and/or activation. | 12-04-2014 |
20150027180 | Systems and Methods for Converting and Processing Organic Sludges for Multi-Nutrient Single Accreted Granule Enhanced Efficiency Fertilizer Production - Convening dewatered heterogeneous sludge containing organic waste materials into a homogenous extract of carbon and amino acids for fertilizer production by adding sulfuric acid to the sludge; pumping the mixture through a blending mixer to mix the sludge with the sulfuric acid; adding conditioning chemicals to the mixture: pumping the mixture through a shearing mixer to mix the conditioning chemicals into the mixture; and mechanically agitating the mixture to create the homogenous extract. Optionally, the extract is pumped into a pipe reactor for reaction with an acid and a base to form a melt, which is rolled onto fertilizer particles to form accreted granules. The accreted granules are dried to form a granular fertilizer. Also described is an organically-enhanced granular nitrogen-phosphorous-sulfur fertilizer having at least about 0.5% by weight total carbon and amino acids, and accreted granule size greater than or equal to about 1.7 mm. The fertilizer is noncombustible. | 01-29-2015 |
20150096343 | METHODS AND SYSTEMS FOR BIODEGRADABLE WASTE FLOW TREATMENT USING A TRANSPORT FLUID NOZZLE - The present invention is directed to methods and systems for pre-treating sewage sludge in a sewage treatment works (STW) to facilitate anaerobic digestion. These methods include (a) passing sewage sludge through one or more pre-treatment devices, wherein each pre-treatment device comprises (i) a passage of substantially constant diameter having an inlet in fluid communication with the STW and an outlet; and (ii) a transport fluid nozzle communicating with the passage and adapted to inject high velocity transport fluid into the passage; (b) passing the sewage sludge treated in step (a) to an anaerobic digester; and (c) collecting methane produced in step (b). Other methods are also provided for pre-treating a bio-degradable waste flow. Such methods include (a) passing bio-degradable waste flow through one or more pre-treatment devices, wherein each pre-treatment device comprises (i) a passage of substantially constant diameter having an inlet in fluid communication with the bio-degradable waste flow and an outlet; and (ii) a transport fluid nozzle communicating with the passage and adapted to inject high velocity transport fluid into the passage; (b) dewatering the bio-degradable waste flow from step (a); and (c) optionally compacting the material resulting from step (b). | 04-09-2015 |
20150299060 | SOIL IMPROVING MATERIAL AND CULTURE SOIL CONTAINING SAME - To solve problems of perlite, zeolite and vermiculite which have been conventionally used as soil improving materials, and to provide a soil improving material which has excellent water retaining properties and is well-drained to retain air in a soil to thus make a soil suitable for plant growth, and a culture soil containing the soil improving material. The soil improving material of the invention includes porous ceramic particles having a moisture content of 5 vol % or greater at a pF value of not more than 2.7. The particles preferably have a water retaining ratio of 15% or greater. The particles preferably have a saturated hydraulic conductivity of 0.1 cm/s or greater. | 10-22-2015 |
20150353435 | Systems, Methods, and Apparatus for Converting Biosolids to Class A Fertilizer - A system and methods comprising a greenhouse for predrying a biosolids to reduce volume and weight; a conveyer belt operably connected to the greenhouse for conveying the biosolids from the greenhouse to a pasteurization system; the pasteurization system comprising a burner-fan to introduce hot air to the biosolids; the pasteurization system comprising a heat up belt to accept the biosolids from the greenhouse and a burner-fan for raising the biosolids temperature from ambient to at least 70° C.; the pasteurization system further comprising a pasteurization belt to hold the biosolids at 70° C. for at least thirty minutes; a biofilter system operably connected with the greenhouse and the pasteurization system for reducing odors; and bagging area to collect a final product. | 12-10-2015 |
20160199762 | WASTE PROCESSING SYSTEM | 07-14-2016 |
071013000 | With other organic material | 12 |
20100107712 | METHOD FOR TREATING DOMESTIC WASTE - The invention relates to a new method for treating domestic waste and the like by the combination of two compositions, one containing lime and the other containing urea, to the combinations, to the products obtained by the method and to uses thereof. | 05-06-2010 |
20100313619 | Lime-Based Compositions, Method for Making Them and Their Use in Treating Water and Sludge - A composition based on lime comprising at least one mineral agent consisting of slaked lime in the solid phase and of an organic polymer incorporated into said solid phase, a method for its making and the use for its application in the treatment of water and sludge, in particular for conditioning sludge before dewatering. | 12-16-2010 |
20120096911 | METHOD FOR PRODUCING AN ORGANIC MINERAL FERTILIZER MIXTURE - The present invention relates to agriculture and, in particular, to the methods used for producing mineral organic fertilizer mixtures based on wastewater sludges. | 04-26-2012 |
20120186315 | WATER-DISPERSIBLE PELLETS - A water-dispersible particle for delivery of fertilizer to a plant is disclosed. After delivery wetting of the particles causes particle dispersion so as to prevent secondary pick up to the particles. Methods for making and using the water-dispersible particle are described. | 07-26-2012 |
20120234063 | Process to Beneficiate Heat-Dried Biosolid Pellets - This invention is directed to systems, devices and methods to beneficiate heat-dried biosolids or sludge pellets or granules as presently manufactured by municipalities or companies from a) dewatered municipal wastewater biosolids or sludges within the municipal wastewater treatment plant heat-dried biosolids production facility or from b) finished dry heat dried biosolids pellets or granules in a separate manufacturing facility from the municipal wastewater treatment plant to produce a fertilizer containing sufficient organic and inorganic plant nutrients to be valuable and saleable into the commercial agricultural industry. The present invention describes beneficiation methods to increase the plant nutrient content of the fertilizer and also to reduce the odors associated with traditionally-produced heat dried biosolids. | 09-20-2012 |
20130055777 | Lime-Based Compositions, Method for Making Them and Their Use in Treating Water and Sludge - A composition based on lime comprising at least one mineral agent consisting of slaked lime in the solid phase and of an organic polymer incorporated into said solid phase, a method for its making and the use for its application in the treatment of water and sludge, in particular for conditioning sludge before dewatering. | 03-07-2013 |
20130180299 | MANUFACTURING OF BIOORGANIC-AUGMENTED HIGH NITROGEN-CONTAINING INORGANIC FERTILIZER - The invention describes a new method for the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method creates a thixotropic paste-like material from the biosolids or organic sludge that is blended with hot or molten ammonium salts, especially a mixture of ammonium phosphate and ammonium sulfate. The invention can be an add-on to commercial production of ammonium salts or it can stand alone by manufacturing ammonium salts prior to their introduction to the conditioned biosolids. The invention is oriented to be tailored to production facilities for individual municipal waste treatment plants in order to keep manufacturing plants small with a minimization of logistics and liability. | 07-18-2013 |
20130213102 | WATER-DISPERSIBLE PELLETS - A water-dispersible particle for delivery of fertilizer to a plant is disclosed. After delivery wetting of the particles causes particle dispersion so as to prevent secondary pick up to the particles. Methods for making and using the water-dispersible particle are described. | 08-22-2013 |
20130239634 | VEGETATION BASE SOIL AND A METHOD FOR GROWING VEGETATION ON A SLOPED SURFACE - Slope surfaces of land can be eroded by rain and wind. It is necessary to vegetate a bared slope surface of land for the purpose of erosion control and environmental conservation. The present invention provides a vegetation base soil composition and a method of growing vegetation on a sloped surface for erosion control and vegetating on cut rock slope surface, such as weathered rock surface and barren soil surface. The vegetation base soil includes peat, bio-solids formed by the treatment of urban sewage, for example water treatment plant sediment, woodchip, bark, animal waste compost and clay or loam. The vegetation base soil with a microbes active material, a root activation fertilizer, an adhesive material and seeds are applied over a mesh that is secured over the sloped surface. Plants are grown in the layer of vegetation base soil. | 09-19-2013 |
20130247629 | PROCESSING METHOD FOR BIOLOGICAL MATERIAL TO PRODUCE A WATER-RETAINING POLYMER COMPLEX - Provided herewith are a method of processing biological material into a water-retaining polymer complex, a water-retaining polymer complex obtained from said method, and the use of said water-retaining polymer complex to improve the water retention and/or nutrient content of soil. The method comprises providing said biological material, an alkaline solution and a monomer, then adding a polymerisation agent to form a water-retaining polymer complex. | 09-26-2013 |
20150020560 | ORGANIC CONTAINING SLUDGE TO FERTILIZER ALKALINE CONVERSION PROCESS - This invention is directed to systems, devices and methods for treating organic-containing sludges and converting such sludges to high value fertilizers containing both inorganic and organic fertilizer components, which creates an inorganically-augmented bioorganic fertilizer. The invention describes methods to create a thixotropic or paste-like material via the application of mixing energy to the organic sludge followed by an alkaline treatment and a subsequent ammoniation. The invention further describes a method to increase the plant nutrient content in the organic containing product to a level which permits the finished granular fertilizer product to compete in the commercial agricultural fertilizer marketplace. Further, the invention reduces odors associated with said organic-containing sludges. | 01-22-2015 |
20160137560 | Organic Containing Sludge to Fertilizer Alkaline Conversion Process - This invention is directed to systems, devices and methods for treating organic-containing sludges and converting such sludges to high value fertilizers containing both inorganic and organic fertilizer components, which creates an inorganically-augmented bioorganic fertilizer. The invention describes methods to create a thixotropic or paste-like material via the application of mixing energy to the organic sludge followed by an alkaline treatment and a subsequent ammoniation. The invention further describes a method to increase the plant nutrient content in the organic containing product to a level which permits the finished granular fertilizer product to compete in the commercial agricultural fertilizer marketplace. Further, the invention reduces odors associated with said organic-containing sludges. | 05-19-2016 |