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4288241 |
Method and apparatus for composting sludge
Sludge is composted by arranging the sludge in a pile over a conduit and air is forced into the pile in spaced time intervals and air is drawn from the pile into the conduit in alternate time...
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4236910 |
Method of biologically decomposing organic material, and apparatus for carrying out the method
The invention is concerned with a method of biologically decomposing organic material by the action of microorganisms thereon in the presence of an oxygen-gas containing medium, in which method the...
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4229202 |
Wastewater treatment with ultraviolet disinfection and increased capacity
A method and an apparatus for treating wastewater such as sewage are disclosed. Designed principally for complete on-site wastewater treatment and disposal, the system separates wastewater into...
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4226712 |
Method and apparatus for treating water containing wastes
A method and apparatus for treating a water containing waste such as industrial sludges and animal excrements. The method comprises a first step of mixing the waste with an alkaline earth metal...
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4214985 |
Method for sewage treatment with bacteria
A process for the treatment of sewage wherein the sludge is innoculated with a bacteria, L. plantarum, and a carbohydrate such as lactose is admixed therewith. The addition of the bacteria and the...
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4198211 |
Microbiological processes to produce fuel gas
A process of treating an animal manure slurry susceptible to aerobic composting and anaerobic microbiological degradation with the production of a fuel gas, comprises: separating the slurry into a...
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4193206 |
Processes for drying sewage sludge and filtering water
A process for drying and granulating sewage sludge. Wet sewage sludge is dried in either a thermal drying zone or a mechanical dewatering zone comprising a cylindrical chamber having a porous wall...
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4185680 |
Process for producing useful concentrated slurries from waste material
Domestic refuse containing inorganic and organic material is treated to separate off the inorganic material, after which the organic material, with sewage sludge, is assimilated in a digestor by a...
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4180459 |
Process of making agricultural product from organic sewage sludge
An acidic organic agricultural product is made by conditioning organic sewage sludge with amounts of FeCl 3 and sugar factory waste lime to provide an acidic conditioned sludge, of pH greater than...
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4174371 |
Integrated solar heated resource transformation system
A system providing for the temperature and humidity controlled aerobic composting of organic materials is described. The system includes at least one composting chamber, at least one thermal mass,...
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4161825 |
Plasticized organic waste
A composition of matter comprising a plasticized organic waste, preferably dried sewage sludge. Fibrous reinforcing media may also be present. Plasticization of the dried organic waste is performed...
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4162153 |
High nitrogen and phosphorous content biomass produced by treatment of a BOD-containing material
An organic product material having a high nitrogen and phosphorous content is produced as the product of a biological system for the treatment of a BOD-containing influent which also contains...
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4146382 |
Method of and apparatus for the treatment and purification of refuse, or refuse/sewage sludge mixtures by means of composting
Method and apparatus is disclosed for composting material such as refuse and preferably a mixture of refuse and sewage sludge. The material is piled in such a way that transverse tunnels are...
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4137158 |
Process for tertiary treatment of waste waters from anaerobic digestion treatment process
A process for the tertiary treatment of biochemical waste waters comprising the following 4 main steps; (1) adding milk of lime to waste water from the anaerobic digestion treatment process to...
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4128946 |
Organic waste drying process
A process for drying organic waste, such as sewage sludge, by contacting the organic waste with hot vapors wherein the dried material is extruded to form compacted granules having good flow...
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4098006 |
Organic waste dewatering and drying process
A process for drying organic waste, such as sewage sludge, by contacting the organic waste with hot vapors. Partial dewatering of the organic waste is achieved by admixture with a recycled portion...
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4078094 |
Process for producing an animal feed and fertilizer ingredient from animal manure
A process for producing an animal feed and a fertilizer ingredient from animal manure which comprises acid solution and either wet or dry manure. The essentially basic minerals contained in the...
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4076515 |
Method for treatment of digester supernatant and other streams in wastewater treatment facilities
Digester supernatants and/or liquors from sludge dewatering are reacted with an excess of an alkaline reagent having a stronger cation than the ammonium ion and the reaction product is separated...
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4070175 |
Method of processing cattle excrement
A method of separating from ruminant animal feces the undigested fibrous material that is preponderantly short pieces which consist of bundles of capillary tubes. The feces are mixed with urine,...
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4056380 |
Method of producing an organic soil additive and the product thereof
The present disclosure is directed to a method of producing an organic soil additive from shreaded water hyacinths and a mixture of secondary sewage combined in spaced apart heaps for aeriation and...
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4046689 |
Method and apparatus for transporting sludge while rendering it for conversion into fertilizer
The present disclosure is directed to a method and apparatus for rendering sludge and effluent into state usable for conversion into fertilizer while transporting the sludge and effluent from the...
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4038181 |
Process for dewatering sewage sludge
A process for dewatering sewage sludge having a water content on the order of 75% to 95% and previously untreated for the release of such water. The sludge is mixed with a chemical selected from...
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4012219 |
Method for reclaiming variegated wastes
A method for reclaiming variegated wastes such as garbage, sewage, and saline dredging spoils includes the primary step of desalinization of the dredging spoils by draining off the salty water. The...
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4010098 |
Resource recovery from disposal of solid waste and sewage sludge
The treatment of solid waste and sewage sludge with the recovery of natural resources comprising subjecting all or at least a portion of the sewage sludge to wet oxidation reaction to reduce the...
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3963470 |
Process for treating decomposable organic waste materials
A process for treating wastes containing organic solids by composting wherein previously composted and/or otherwise partially dried organic material of the same or similar type is periodically...
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3950562 |
Process and apparatus for removing ash and inorganic compounds from cattle manure
In reclaiming nutrients from manure, steps are taken to remove both insoluble and soluble ash components, thereby preventing their buildup to possibly dangerous levels when the reclaimed nutrients...
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3942970 |
Process for treating sewage sludge and fertilizer products thereof
An apparatus for and a process of treating sludge filter cake and the granular product thereof which comprises reducing the particle size and moisture content of the sludge cake, sterilizing the...
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3778233 |
APPARATUS FOR LIQUID COMPOSTING
The apparatus generally comprises an elongated hollow shaft having a propeller secured to its lower end and driven at its upper end by a motor mounted on a swingable frame. Air may enter the upper...
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3612143 |
APPARATUS FOR LIQUID WASTE DISPOSAL
Heated gases, such as exhaust gases from an engine, and liquid waste materials are mixed in a container with the hot gases vaporizing the liquid. Cyclonic movement of the gases separates...
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3607212 |
A BROWN COAL FERTILIZER PRODUCT AND PROCESS FOR PREPARING SAME
Agents for improving the fertility of soil consisting of a mixture of brown coal and a material which is capable of being decomposed by bacteria such as α-cellulose-containing waste residues,...
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3546812 |
PROCESS FOR TREATING EXCREMENT BY MICROORGANISMS AND PRODUCTS OBTAINED THEREBY
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3523012 |
APPARATUS FOR COMPOSTING WASTE MATERIAL
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3476683 |
METHODS OF SEPARATING INORGANIC IMPURITIES FROM SEWAGE AND OF MAKING A SOIL IMPROVING COMPOSITION FROM THE IMPURITIES SEPARATED
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3451800 |
PRODUCTION OF GRANULAR SEWAGE SLUDGE
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3451781 |
MANURE DRYER UNIT
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3442637 |
GRANULATION OF SEWAGE SLUDGE
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3410233 |
Method for the drying and burning of sewage sludge and plant for carrying out this method
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3365395 |
Process for treating sewage with a halogenated hydrocarbon solvent
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3359200 |
Partial wet air oxidation of sewage sludge
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3357812 |
Method and apparatus for the aerobic composting of organic waste material
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3345152 |
Method and means for converting odors in manure and human excreta
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3343587 |
Drum drying of liqueform substances
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3323575 |
Apparatus and process for dehydrating waste solids concentrates
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3300407 |
Process for dewatering an aqueous suspension of organic waste solids
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3298821 |
Aerobic composting with comminution and forced aeration
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3285732 |
Continuous single-zone thermophilic phase composting process
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3272740 |
Sewage sludge treatment process
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3251398 |
Process for dehydrating waste solids concentrates
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3236766 |
Sewage treatment process
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3235369 |
Fermented fertilizer having a granular structure and the method for producing the same
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