Abstract: A method for treating wastewater sludge so that a stability based upon achieving a significant microbial population, conductivity level and percent solids, is developed rapidly, is provided for indefinitely and is independent of climatic conditions. A dewatered sludge that has not been treated (i.e., raw) or a sludge that has been treated to a PSRP level or a sludge that has been treated to a PFRP level, i.e., pasteurized or sterilized sludge when still in a wet condition, i.e., between 12%-30% solids, or when in a dry condition, i.e., between 30%-60% solids, is mixed with alkaline adsorptive materials to reduce odor, to increase the percent solids and to facilitate granulation, is adjusted to a mildly alkaline pH, and is adjusted to an ionic conductivity which will allow the sludge to mature rapidly when seeded with a beneficiating microbial flora. This process will reduce the pH of a high alkaline treated sludge, e.g., often above pH 12, to a physiological pH of between 7 and 9.

Abstract: The invention relates to a method for preparing a granular fertilizer from manure, comprising the steps of:i) acidifying the manure;ii) dehydrating the acidified manure and evaporating the carrier liquid; andiii) forming granules from the fertilizer obtained. Preferably the manure is acidified using a mixture of nitric acid and sulphuric acid, wherein in the mixture the nitric acid to sulphuric acid ratio is 30-50:70-50. The granulate comprises:______________________________________ NH.sub.4 --N 1-3% by weight NO.sub.3 --N 1,5-3,5% by weight N-total 5-9% by weight P.sub.2 O.sub.3 -total 2-5% by weight K.sub.

Abstract: A process for converting municipal garbage into organic compost material is described.In the first step of this process, a mixture of cellulosic refuse material and earthworms is provided.In the second step of the process, the mixture of refuse material and earthworms is maintained at a moisture content of from about 45 to about 92 weight percent and a temperature of from about 0 to about 54 degrees centigrade for from about 3 to about 8 months.

Abstract: A process for converting municipal garbage into organic compost material is described.In the first step of this process, a mixture of shredded cellulosic refuse material and earthworms is provided. A substantial portion of the shredded cellulosic refuse material is derived from paper and/or cardboard refuse.In the second step of the process, the mixture of refuse material and earthworms is maintained at a moisture content of from about 45 to about 92 weight percent and a temperature of from about 0 to about 54 degrees centigrade for from about 4 to about 8 months.

Abstract: The present invention is a method of preparing artificial fertile soil from pulverized material such as sawdust or wood chips by the utilization of biological mass production techniques. In the steps for converting the pulverized woody material into fertile soil, four-footed livestock such as cattle are raised thereon, followed by the addition thereto of crushed animal carcass residues, the breeding of earthworms therein and, finally, the raising of domestic fowl such as chickens thereon.

Abstract: In a method of continuously composting material capable of being composted by the action of aerobic microorganisms in a reactor, the material is caused to pass through the reactor as a single mass from the top thereof to the bottom thereof from an upper level in said reactor, and in which oxygen-containing gas required for the aerobic decomposition of the compostable material is passed through said single mass in contact therewith. The waste gas from the composting process is removed from the reactor by suction through pipes which extend down into the mass to be composted from the upper level thereof, with the openings of said pipes lying on a level located beneath said upper level in said reactor.

Abstract: A method and apparatus for treating sewage and converting the sewage into organic fertilizer which utilizes equipment for converting the solid material of the sewage into patties and a mixing apparatus for mixing the patties with bulking agents. The mixture of patties and bulking agents is stored in a pile and subjected to a supply of air to enhance the self-combustion or oxidation of the organic material in the patties. The bulking agents provide the patty-bulking agent mixture with air passages and pockets and minimize compaction of the patties. The self-combustion of the patties continues until the organic material is burned out, leaving a residual ash. A shaker separator having an elongated longitudinal perforated member is reciprocated to separate the ash from the bulking agents. The ash is collected and utilized as organic fertilizer. The bulking agents are recycled back to the mixing apparatus.

Abstract: A slow-release nitrogen fertilizer is disclosed employing proteinaceous animal food materials which are stabilized against decomposition and decay for extended periods of time when stored at ambient temperatures. The treated animal food materials are useful as fertilizer compositions, as food supplements or as bait for fish and crustaceans, such as crab. The animal food material is comminuted together to a finely divided state of the consistency of a thick soup with at least 4% by weight, based on the weight of the animal food material, of a polyol having from 2 to 8 carbon atoms and 2 to 6 hydroxyl groups. Edible polyols are used when the end product is to be used as a bait or food supplement. Anti-oxidants and/or mold inhibitors are also preferably added to the animal food material/polyol mixture.

Abstract: An organic fertilizer is obtained from the treatment of organic material being material of animal origin. The organic material is digested, for example by potassium hydroxide and the product is neutralized. A preservative is included in the final mixture and other additives such as phosphates, sulphates and potassium sources, as well as molasses and gum may also be included.

Abstract: A process and apparatus for producing compost having a high nutrient value from a mixture of animal manure and sawdust. The composter has two parallel shafts with radially projecting fingers which, when the shafts are rotated, slowly and gently churn and agitate the mixture in the composting chamber while air is directed therethrough at a predetermined low rate. When the composting action is completed the compost is promptly dried and packaged in moisture impervious containers.

Abstract: A composting method which produces complete aerobic digestion and pasteurization of animal and other solid organic waste materials is effected in an open top, elongate, composting vessel, for producing an odor free, pasteurized, organic fertilizer, mulch or animal feed supplement.

Abstract: System and apparatus for treating organic waste material, suited, for example, for the aerobic-thermophilic treatment of cattle manure. The waste material initially is commingled with an expanded, size limited dry cellulosic material in a mixing stage, preferably, a pug mill device, to achieve a bulk density and moisture content optimized for thermophilic digestion. A digestion arrangement is provided assuming a reliability for complete aerobic treatment of all material removed therefrom.

Abstract: A process for the chemical treatment of organic waste materials contaminated with a pathogenic microorganism, such as raw sewage, sewage sludge and other organic waste products, and to the treated organic waste material so obtained, which process comprises: prereacting the organic waste material with a water-soluble methylol compound subject to condensation, such as a methylolurea compound, under alkaline pH conditions; and, thereafter, condensing the methylol compound by establishing an acid pH condition to form a solid waste product comprising a condensation polymer containing methylene bridges and a sterile solid waste material.

Abstract: 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, water from animal washing and preparation for milking, and with other water if needed, to form a homogeneous slurry which is run through tandem perforate drum and roller squeezers that heavily compress the short pieces to express liquid from them while continuously draining off a filtrate of liquid and fine solids which is ultimately put into a pond for use as liquid fertilizer. This leaves a filter mass which is preponderantly the short pieces. The filter mass is mixed with clean water to form a suspension which is run through tandem perforate cylinder roller pressers that compress the short pieces under several times heavier pressure to produce a cleansed filter mass and a filtrate which is combined with the original slurry.

Abstract: A process for the chemical treatment of organic waste materials contaminated with a pathogenic microorganism, such as raw sewage, sewage sludge and other organic waste products, and to the treated organic waste material so obtained, which process comprises: prereacting the organic waste material with a water-soluble methylol compound subject to condensation, such as a methylolurea compound, under alkaline pH conditions; and, thereafter, condensing the methylol compound by establishing an acid pH condition to form a solid waste product comprising a condensation polymer containing methylene bridges and a sterile solid waste material.