Abstract: A waste stream such as from an animal or poultry processing plant is mixed with bentonite or Grafted Bentonite and then with liquid Chitosan as natural flocculents to form a rigid floc which removes fats, oils, greases, and/or proteins from the waste stream. The flocculated solids (sludge) is removed and dried, and either formed into granules or pellets. The recovered material may be used as animal feed, when appropriate. However, it is particularly useful when mixed with coal fines and pelletized to form fuel pellets or used in granule form as a fuel source.

Abstract: A process for the production of a granular fertilizer product from biological or municipal sewage sludge is described. This process involves (1) gently blending the biological sludge with sufficient lime-containing material (preferably lime kiln dust) to raise the pH of the blended material to at least 11 pH units, and preferably at least 12 pH units, in such a manner as to avoid or prevent the formation of a slurry; (2) then conditioning the blended materials at a temperature of 180.degree. F.

Abstract: A process for controlling the throughput rate of aeration air when composting organic waste and/or sewage sludge migrating through a closed reaction vessel from an inlet opening to an outlet opening while aeration air supplied to the reaction vessel flows countercurrently through it, wherein a measured value corresponding to the O.sub.2 content of the waste air evacuated from the reaction vessel is continuously produced and, starting from a minimum value, the throughput rate of the aeration air is increased up to a maximum value until the measured O.sub.2 content of the waste air has dropped to its minimum value, and is decreased again when the O.sub.2 content of the waste air increases, the minimum value of the throughput rate being the value at which the O.sub.2 content of the evacuated waste air just begins to drop as compared to the O.sub.

Abstract: Dewatered municipal sludge is dried and simultaneously pelletized in an indirect dryer. A sweep air is introduced into the dryer to extract a water vapor and air mixture. The water vapor and air mixture is condensed and cleaned in a condensor and a scrubber to obtain a clean non-condensable gas. The non-condensable gas is heated and recycled to the dryer after heating for use as the sweep air. Since air leakage into the system is inevitable, an excess amount of air accumulates that does not need to be recycled to the dryer. The excess amount of air is diverted from the recycled sweep air and thermally treated to destroy any malodorous gaseous constituents contained therein. Preferably, the indirect dryer is a horizontal drum dryer that is heated by the hot flue gases from a combustion furnace.

Abstract: The invention relates to a composting device for toilet and foodstuff waste to be used in connection with a toilet. In the device according to the invention, the upper portion of a rotating compost container 6 provided with a filtering floor 9 is divided into four sections to keep apart compost materials of different degree of compositing. The compost container is positioned partialy within the toilet room so that the toilet seat 5 is positioned immediately or substantially immediately above the cover of the composting device. In this way, the natural aeration will not cause the smell of the compost material to enter the toilet room when the cover of the toilet is opened. In the composite container, the waste is aerated both from above and from below. The circulation of air is arranged to take place naturally so that it flows all the time upwards.

Abstract: Sewage sludge is subjected to a treatment with an acid in order to form stable ammonium compounds before thermal drying of the sludge which would otherwise volatilize ammonia and diminish the nitrogen content of the sludge.

Abstract: This invention is a mixed horticultural medium consisting essentially of natural zeolite particles, which has a unique property of capturing ammonium ions, and has a high nitrogen content as compared with conventionally available horticultural media thereby providing a high germentation percentage and having a nitrogen supply potential to meet requirements of plants with the aid of microorganisms in the soil.

Abstract: To produce organic fertilizer which is effective for sterile agricultural land, a mixture comprising coral reef powder, domestic animal excreta, sewage disposal waste and ground cellulose derived from plant fiber is prepared and it is well mixed in the presence of organic compounds and inorganic salts. Thereafter, it is subjected to cultivating in a multi-bath type cultivating bath for a predetermined period of time while temperature and pH are adjusted properly. Cultivation is achieved with the addition of bacilli including nitrogen fixing bacillus such as Azotobactor vinelandii, Bacillus megaterum, Rhizobium leguminosarm or the like, Trichoderma virde acting as raw fiber decomposing bacillus, candida utilus acting as yeast fungus and green algae, each of which is cultivated under the operating condition of symbiosis cultivation. The pH in the cultivating bath is maintained in the range of 5.5 to 7.5, preferably in the range of 6 to 7.

Abstract: Municipal sludge is dried in an indirect heating dryer to simultaneously dry and pelletize the sludge while preventing the escape of malodorous gases. The product exiting the dryer contains pelletized, undersized and oversized fractions. The dried product is classified to separate the undersized and oversized fractions from the pellets. The pellets are then cooled and stored for subsequent use as a fertilizer or fuel. The oversized fraction is crushed to obtain fines and mixed with the undersized fraction, which contains mostly fines. The fines are added to the liquid sludge before it is input to the dryer. The air that is used to cool the pellets, and that is used as sweep air in the dryer contains malodorous gases. In order to prevent the escape of these malodorous gases, the pellet cooling air and sweep air, which also includes the water vapor generated during the drying of the sludge, is deodorized by thermal treatment, preferably in a high temperature combustion zone.

Abstract: A method for bringing gases into contact with compostible or partially composted material, in which the material placed in the form of a mass on a layer of particulate material and gas, preferably air, is passed through the material, the air being introduced into the mass through gas-distributing means embedded in or covered by the layer of particulate material, and in which the layer comprises a first part-layer of relatively coarse particulate material intended to serve as protection for the gas-distributing means and as a distributing filter for the through-flowing gas, and a second part-layer arranged upon the first part-layer and comprising relatively fine particulate material, the second part-layer being intended to distribute the through-flowing gas before the gas is introduced into the compostible or partially composted material.

Abstract: A method of decontaminating wastewater sludge to a level that meets or exceeds USEPA Process to Further Reduce Pathogens standards, wherein lime or kiln dust and/or other alkaline materials are mixed with wastewater sludge in sufficient quantity to raise the pH of the mixture to 12 and above for a predetermined time and drying the resulting mixture.

Abstract: Method for the treatment of animal excrement material, particularly liquid manure and sewage sludges, in which the material containing a high percentage of liquid is mixed with a dry additive, preferably the re-circulated dry material, and after forming into briquettes which can be heaped is ripened in heaps penetrable by air, in which for the ripening process briquettes are employed having a volume predominantly between 30 and 50 cm.sup.3. The briquettes are conveniently formed in a worm press to have a diameter of between 30 and 40 mm. and a length of between 40 and 80 mm. For a larger diameter briquette, provision is made to form a hole in the briquette. The method is performed by using an extrusion press having a moulding die having at least two sections separated by a slit there being, in each case, hole sections extending outward from the slit and opposite to each other, said sections forming the die channel, the inputs to the slits and to the hole sections having an input angle less than 45.degree.

Abstract: A process for treating smoke, aqueous sewage and solid waste/refuse materials by digesting all three waste material into an odor-free pumpable slurry. The slurry is screened to separate solids from the aqueous solution. The odor-free solids may be used as fertilizers and the odor free solution may be used for irrigational purposes.

Abstract: A composting facility comprising an elongated composting bay, a compost handling machine, and a ventilation system. The composting bay holds organic waste material while that material composts; and the compost handling machine is adapted to agitate the compost in, and to move the compost along, the bay. The ventilation system selectively conducts air into the compost, and this system includes a sensor, recessed in the bay, to actuate the ventilation system when the temperature of the compost rises above a preset value. Preferably, the temperature of the compost varies along the length of the bay, and the ventilation system includes a multitude of sensors to actuate the ventilation system to conduct air selectively into different sections of the bay to maintain a desired compost temperature profile.

Abstract: A method and plant are provided for sterilizing waste sewage sludge with methyl bromide vapor, to produce a natural fertilizing material. The moisture content of the sludge is reduced to a level where the vapor permeability of the sludge is sufficiently high to reduce the contact period of the methyl bromide vapor with the sludge to an economically viable level. The methyl bromide is provided at a dose of at least 50 g/m.sup.3 to the top of a bed of sewage sludge having a moisture content of less than 35% and about 1 meter thick and allowed to permeate the bed over a period of about 48 hours under the force of gravity, the bed of sewage sludge being covered during the entire treatment period with a cover which is impermeable to the methyl bromide vapor. Harmful pathogens and parasites such as Ascaris ova are effectively eliminated.

Abstract: A method of decontaminating wastewater sludge to a level that meets or exceeds USEPA Process to Further Reduce Pathogens standards, wherein lime or kiln dust and/or other alkaline materials are mixed with wastewater sludge in sufficient quantity to raise the pH of the mixture to 12 and above for at least two hours and drying the resulting mixture by an aeration process.

Abstract: Contaminated water is contacted with an agent which contains salts or cations of mono-, di-, or trivalent metals in a maximum amount of 50 masspercent and rock granules containing at least 25 masspercent zeolite, preferably clinoptilolite and/or mordenite. The amount of metal salts respectively cations present in the parent zeolitic rock can be increased according to necessity by ion-exchange, adsorption and/or impregnation, i.e. by combination of these processes following eventual dehydration. The agent obtained is homogenized. The exhausted bed can be regenerated biologically or with aqueous solution of a potassium salt.

Abstract: The invention relates to a novel fertilizer and method wherein a complex humic acid fertilizer is formed a mix of a select organic material, water, and measured amounts of major inorganic elements of nitrogen, phosphate, potash and sulfur. The constituents mixed in a sealed reactor system with a first material, usually an acid, are hydrolyzed by a drastic pH change, raising the mix temperature and pressure, and the mix is subsequently blended with a second material of an opposite pH to the first material, usually a base, reacting with the mix to provide a further temperature and pressure increase, to alter the pH to that of the finished fertilizer, which humic acid fertilizer is then dried and granulated or liquefied to a pumpable slurry.

Abstract: Cultivation of a microorganism in a nutrient medium including disrupted sea kelp or a sea kelp extract produces a bioactivating fermentation product which promotes growth and yields when applied to plants. A composition containing such bioactivating fermentation product and an acidification extraction product of humic acid is readily absorbed by plant foliage when sprayed on plants.

Abstract: The invention relates to a method for producing a product from which compost can be suitably produced and which contains sludge obtained from a sewage purification process, in which method the sludge is mixed in a fluid state with a finely-divided carbon-carrier selected from the group sawdust, peat and bark, and with polyelectrolyte, and is then mechanically dewatered to a dry substance content of at least about 28 percent by weight.

Abstract: The invention is an improved system for separating waste products into several components and then providing for total utilization thereof. The systemitized arrangement integrates numerous automatic operations to produce the separation of the components and then provides for automatically directing the separated components to ultimate destinations for total utilization. The system first processes bulk waste products such as garbage, rubbish, and other discarded material and shreds it into small size particles. The shredded waste products are then mixed with sewage sludge received from another source. The mixture is then processed through a controlled sludge composting means. At this point a first benefit is derived by means of hot exhaust air from the controlled sludge composting means being directed to a hot house structure to aid in the growth of food products.

Abstract: A clay-breaking and fertilizing composition comprises a finely ground mixture of chicken manure, muriate of potash and a rock phosphate having a high limestone content and containing the phosphate in the form of the basic tricalcium diphosphate. When spread on heavy, clay soils or compacted ground and watered, the composition breaks up the soil and fertilizes it such that, after two to three months the soil is friable and immediately ready for crop cultivation. The composition is also usable in a stratified cultivation bed, particularly for desert reclamation, comprising an impermeable tank, a bottom layer of wood or stone chippings which can be supplied with water, a perforated plastics sheet covering the chippings and a top layer of growth medium comprising the above fertilizing composition mixed with sand.

Abstract: A plant consisting of modular elements for reducing organic wastes by degrading them by means of earth worms, comprising a tank for organic wastes, arranged outside the plant assembly, an inclined main screw feeder for lifting the materials onto work stations and discharging them onto horizontal screw-feeders arranged at any work station, the horizontal feeders conveying the materials to horizontal conveyers which discharge them into modular containers arranged on the work stations, whereby, at the end of the transformation, the material is discharged through hoppers onto conveyors arranged at the plant base and conveyed to storage containers.

Abstract: A method of converting sewage sludge solids into dense controlled release, attrition resistant fertilizer agglomerates is disclosed. The method is carried out by forming a fertilizer premix from dry sewage sludge solids and uncondensed liquid ureaform. Acidic material, preferably phosphoric acid, is distributed throughout the premix to bring the pH to between 4 and 6, and the premix is heated for 5 to 60 minutes to 120.degree. C. The heated premix is compressed between solid surfaces at pressures between 500 and 10,000 pounds per square inch to form agglomerates.The method is preferably carried out on a continuous basis using a heated blender and conveyor for blending and heating the fertilizer premix containing the sewage sludge solids, liquid ureaform, and phosphoric acid. Continuous compacting rollers are used to convert the premix to fertilizer agglomerates which may be readily broken up and screened to any desired fertilizer particle size range.

Abstract: A method for the processing of fecal waste by treatment with mineral clay, characterized in that:A. a smectite clay, enriched with aerobic and anaerobic microorganisms, specific for the digestion of fecal waste, and with plant preparations which promote the increase of said microorganisms, and lime, is allowed to digest the fecal waste; andB. an acid phosphate is added to the fecal waste treated in this manner, after addition of the enriched smectite clay and shortly before use of the treated waste as a fertilizer.

Abstract: The invention herein pertains to novel 2,5-bis-(perfluoroalkyl)-3,4-pyrroledicarboxylates and a method for their preparation. The novel pyrroles have been found to have utility as pre- and postemergent herbicides.

Abstract: The instant invention is directed to a process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting(A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with(B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50.degree. C. with complete denaturing of component (A).

Abstract: A method of producing soil conditioners from waste material, and of utilizing the internal energy thereof, while reducing the volume of the waste material at the same time, is disclosed in which initially compacts of a refuse-sludge mixture are subjected to intense rotting whereby the water content thereof is reduced from an initial value of about 50 to 60 percent to about 30 percent, preferably 20 percent, and whereby the compacts become dried and storable. The dried and storable compacts are ground or screened, or both, with the screened out fine fraction being directly usable as a soil conditioner, and then the ground or screened, or both, compacts are thermally treated by one of low temperature carbonization and combustion.

Abstract: The instant invention is directed to a process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting(A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with(B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50.degree. C. with complete denaturing of component (A).

Abstract: A method is described for converting substantially untreated organic sludge into useful substances. The sludge may include primary sludge, a mixture of primary and secondary sludges from municipal wastewater treatment facilities, slurries of agricultural manure, and other organic wastes. The sludge is mechanically comminuted to reduce the size of organic solids, the sludge is then further mechanically disintegrated and thereafter it is subjected to enzyme hydrolysis to produce a biologically stable colloidal slurry with improved biochemical potential reactivity. Typically, the hydrolysis step is followed by a further cell/particle disintegration step and a secondary hydrolysis step. If necessary, heavy metals are removed from the suspension in a chelating step which are recovered as a recyclable concentrate. The suspension can be used as a liquid fertilizer or it can be dewatered. If used as a liquid fertilizer the suspension can be inoculated with microalgae to enrich the fertilizer with nitrogen.

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 method and apparatus for preparing compost material on a storage surface in which a layer of material is produced from strips which are placed with their longitudinal edges adjacent one another and wherein at least one additional layer of compost material is placed on the adjacent strips. In the course of depositing the layers of compost material, hard substances are removed therefrom. The compost material is deposited by a rake-type conveyor member which is capable of being raised and lowered. An aerating device can be provided to loosen the compost material and a pressing device can be provided to produce compact units from the compost material. An aerating system including aerating lances which are movable into and from the compost material can be provided.

Abstract: This disclosure relates to a novel process of composting refuse or refuse/sewage-sludge mixtures by thermal retting by piling refuse to form a first layer of a predetermined height, maintaining an area below the first layer accessible to atmosphere, and retaining the same under atmospheric conditions for a predetermined period of time until the same has solidified and become self-supporting through entanglement of the retted refuse, thereafter forming a second layer atop the first layer, maintaining the second layer under similar conditions for a similar predetermined period of time, and repeating such layering until a stack is formed, and thereafter removing the stack or portions thereof for further utilization only after the uppermost layer has become completely solidified and self-supporting through entanglement of its completely retted refuse.

Abstract: Disclosed is a method for removing inorganic acid-forming constituents from a gas stream contaminated therewith (e.g. high sulfur coal effluent). Such removal is accomplished by passing the gas stream through an active composting biodegradable organic waste held under thermophilic bacteria-phase digestion conditions. Also disclosed is a comprehensive composting treatment site which desirably employs a windrowing composting technique and is suitably adapted to be operated with the gas stream scrubbing process disclosed herein.

Abstract: 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 intervals.The perforated conduits are adapted to be placed under and extend the length of two windrow compost piles. A reversible blower is connected to blow air to and withdraw air from each of the conduits. The blower is timed and controlled to blow air from a first pile through the conduits and into a second pile in spaced time intervals and in alternate time intervals to withdraw air from the second pile through the conduits and into the first pile.

Abstract: A biological toilet and an organic material recycling method in which human liquid and solid waste (i.e., excrement) and cellulosic material and, optionally, kitchen waste (i.e., food and paper scraps and the like kitchen garbage) are deposited into a receptacle and carried by pressure differential into a recycling or composting container wherein, by the application of environmental factors, including moisture, air, warmth and certain bacteria and worms (such as Eisenia Foetida, the red worm) and other wormlike organisms, the organic material is composted or digested and reacted upon to produce a pleasant smelling, uniform, well granulated substantially neutral, active, compost-like plant nutritional material available for easy distribution.

Abstract: A method for composting solid waste material wherein, in initial treatment stages an optimum particle size is developed at a comminution station. Following an initial air classification arrangement, heavy inorganic materials are segregated to the extent that aluminum, glass and paper characterized products are removed for recycling purposes. A characterizing feature of the invention resides in the development of an optimized moisture content or digestible classified size optimized material at a relatively early stage prior to maceration developing a pulpous substance for digestion. A pug-mill arrangement is utilized for adding optimized moisture prior to digestion and maceration and a cage mill is utilized for the maceration stage of the process.

Abstract: In the disclosed method, organic waste material of a water content of at least about 50% and a solid content of at least about 15% is biologically digested into compost. The organic waste material contains a flora of different species of microorganisms having different oxygen consumption requirements and different metabolism. The organic waste material is introduced into an aerating reactor with top inlet and bottom discharge so as to form an air permeable material column in the reactor. Air, which may be enriched with oxygen, is blown through the column in an upward direction without mechanical agitation of the column. Since the flora of microorganism species present in the material has different oxygen consumption requirements and different metabolism, the air flow is controlled in such a way that the microorganisms can settle at distinct levels within the reactor space where the environmental conditions are most favorable.

Abstract: The present invention encompasses a method for reducing offensive odors in poultry houses comprising adding at least 10 pounds of composted cow manure per ton of poultry manure. The method of the present invention substantially reduces offensive odor in poultry houses especially ammonia odor and thereby provides a healthier environment for poultry and poultry workers. Since the ammonia loss to the environment is reduced, the nitrogen is retained in the poultry manure providing a product with higher nitrogen content.

Abstract: A solar chemical process for converting sewer sludge from a gelatinous mass into a manageable product suitable for fertilizer includes the manufacture of a carbonaceous product by treating cellulose waste such as newspaper with sulfuric acid and heating the mixture until the cellulose product becomes substantially black. The black product is mixed with sludge in a ratio to produce a grainy product that can be chlorinated for sterility and spread as fertilizer. In a modified version of the process, coal ash is added to the sludge with the carbonaceous product for its nutrient value, and sand may be added with the coal ash to aid in aeration of the soil.

Abstract: The growth of plants is promoted using a water-soluble cationic polymer obtained by polymerization of a quarternary ammonium compound of the following formula (I) alone or together with other vinyl monomers, ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 and R.sub.3 are each a lower alkyl, R.sub.4 is a lower alkyl, allyl, a hydroxy(lower)-alkyl, benzyl or --CH.sub.2 COO(CH.sub.2).sub.m CH.sub.3 group (in which m is 0 or 1), X is a halogen or methylsulfate and Y is --O(CH.sub.2).sub.n --, --NH--(CH.sub.2).sub.

Abstract: Liquid manure is deodorized and harmful gases removed therefrom by introducing formaldehyde and a peroxy compound into the manure one or more times.

Abstract: 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 provided whereby natural air circulation is obtained into and through the material remains undisturbed during maturation, thereby allowing aerobic bacterial fermentation to progress efficiently and without interruption. Because higher stacks and consequent greater volumetric capacity thereof is attained, greater efficiency of space utilization. The apparatus involves core structures which temporarily support the material and form the tunnels or ventilation passages therein, the core structures being removed when the material becomes self-supporting.

Abstract: A process for drying organic waste, such as sewage sludge, by contacting the organic waste with hot vapors. In the preferred embodiment, adsorption of hydrocarbons vaporized during the drying step is achieved by mixing recycled dried solids into the drying zone effluent stream. The drying zone effluent stream is then separated into vapor and solids streams, with a portion of the solid stream being recycled as the adsorbent. The unrecycled portion of dry solids is preferably extruded in a separate operation to form compacted granules having good flow characteristics and suitable for application by commercial fertilizer spreaders. In another embodiment, a vapor stream derived from the drying zone effluent stream is contacted with the dry solids downstream of the solids-vapor separation zone to effect the adsorption of hydrocarbon vapors.

Abstract: A process for drying organic waste, such as sewage sludge, by contacting the organic waste with hot vapors wherein the dried material is plasticized and extruded to form compacted granules having good flow characteristics and suitable for application by commercial fertilizer spreaders. A plasticizer and an extrusion aid are added to the dried material prior to extrusion.

Abstract: 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 of dried solids followed by extrusion of the mixture. The resultant extrudate is then dried, and the unrecycled portion is extruded in a separate operation to form compacted granules having good flow characteristics and suitable for application by commercial fertilizer spreaders. A plasticizer and an extrusion aid may be added to the dried material prior to extrusion.

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 novel means for the sustained release of agricultural chemicals is provided by a methanol treated activated sludge carrier. The viscous polymeric carrier has application in forming sprayable films, granular pellets, and seed coatings which are resistant to natural mechanisms of chemical loss.

Abstract: A process for recycling raw sewage and unsorted solid waste by adding the solids removed from sewage to ground unsorted waste forming a sludge, treating the sludge first anaerobically, sterilizing the anaerobically treated sludge, forming the sludge into a slurry, separating the biodegradable from the non-biodegradable material in the slurry by aerobic fermentation, composting the biodegradable material in batches, curing the compost under control conditions to stabilize its fertilizing properties and classifying the biodegradable and non-biodegradable material to provide useable products. The colloidal raw sewage liquor remaining after separation of the sewage solids is converted into pure water.

Abstract: A completely integrated and automated apparatus by which liquid sewage sludge from any sewage or waste treatment plant may be processed into a completely dry, pelletized and sterilized product of an organic nature containing nutrients valuable for the support of plant life. The apparatus involves one completely integrated and automated unit together with a control center by means of which electric circuits program each component of the apparatus to automatically regulate the operation of each component, so that no labor or other manpower is required in the operation, except for observation, lubrication, maintenance and repair of the various motors and machineries involved.