Methods, systems and/or apparatus related to the manufacture and use of biodigesters are disclosed. Moreover, techniques for the manufacture of reactors whose final shape increases the lifespan of the biodigester, as well as modular techniques for the manufacture of the reactors, are included.

A composting device includes a stirring device, a conveyor belt and a decomposing device. The stirring device, the conveyor belt and the decomposing device are connected successively. A composting method is further provided. An efficient device that can mix livestock and poultry manure, straws and additives fully and uniformly is researched and developed, a conventional method is broken, new innovation is achieved, and the efficiency is improved.

A plant (10) for treating poultry manure comprises:—an apparatus for the first treatment (11) of the poultry manure, configured to carry out dilution, homogenization and hot, damp alkaline hydrolysis of the diluted poultry manure and to supply at exit a stream of inert materials (18) and a stream of hydrolyzed poultry manure (19); —a second treatment unit (20) configured to carry out a flocculation of the stream of hydrolyzed poultry manure (19) and to supply a hydrolyzed and flocculated stream of poultry manure (22);—a solid-liquid separation unit (24) configured to separate the stream of hydrolyzed and flocculated poultry manure (22) into a solid fraction (26) suitable for anaerobic digestion and a liquid fraction (28);—a liquid post-treatment unit (30) of the liquid fraction (28) supplied by the solid-liquid separation unit (24) configured to recover water (32, 60), ammonium sulfate (31, 56) and salts (34, 54, 54a) from the liquid fraction (28).

This disclosure relates to systems and methods for producing a fuel product from a source of organic matter which includes manure and may include other byproducts. The organic matter is processed by a teeter water feed hindered-bed separator device for substantially separating the animal manure from the other byproducts. The separated animal manure is then subjected to anaerobic digesting to produce the fuel product.

A method is described of forming a bitstream by an encoder apparatus comprising: a processor of the encoder apparatus receiving a projected video frame including one or more pixel regions, the one or more pixel regions representing pixels of spherical video data projected onto one or more 2D projection surfaces of a projection model, the projection model being adapted to project spherical video data onto a rectangular 2D surface of a video frame; the processor generating a plurality of different candidate video frames on the basis of the received projected video frame, each candidate video frame being formed by applying at least one operation to one or more groups of pixels in one or more pixel regions of the projected video frame, wherein said at least operation includes a shift, mirror and/or rotation operation; and, wherein said operation is different for each of said plurality of different candidate video frames; the processor applying a rate distortion analysis to each of the candidate video frames to determine a rate distortion cost for each of the candidate video frames; and, the processor selecting a candidate video frame from said plurality of candidate video frames on the basis of the rate distortion cost; and, generating an output bitstream on the basis of the selected candidate video frame.

This invention refers to a method for preparing a chemical digester characterized by using organic and inorganic elements used for multiple purposes such as an accelerator in the decomposition of organic matter, as a water flocculant, as an organic soil fertilizer and as a means to eliminate the concentration of flies and other inserts in organic matter to decompose. The method comprises heating water in a reactor at a temperature of 38° C., adding a polysaccharide, an anti-thickener and an antifoam. The method then comprises the addition of two organic acids, one of them previously mixed in a second reactor and, finally, an inorganic acid until the mixture is homogenized. Optionally the method comprises the packaging of the mixture and the treatment of organic matter.

A new method of disposing of waste for the hog industry is disclosed which avoids use of lagoons. Manure is semi-continuously degritted, anaerobically digested and digested with biomass to produce bio-organic fertilizer and biogas.

A new method of disposing of waste for the hog industry is disclosed which avoids use of lagoons. Manure is semi-continuously degritted, anaerobically digested and digested with biomass to produce bio-organic fertilizer and biogas.

To produce fertilizer, a system and method concentrates manure slurry in a mechanical vapor recompression evaporator (MVR) having a heat exchanger. The MVR receives the manure slurry within a first side to evaporate ammonia laden-water vapor from the slurry, leaving a nutrient concentrate. A compressor raises the evaporated ammonia-laden water vapor to a higher energy state. Within a second side of the heat exchanger, the compressed water vapor conveys heat to the slurry. Ammonia-laden water condenses in the second side at a process temperature to be conveyed to an ammonia stripping tower where the ammonia-laden water is dispersed into ammonia-laden water droplets. In the tower, a flow of air is directed across a surface of the ammonia-laden water droplets, the process temperature having been selected to promote the escape of ammonia gas from the ammonia-laden water droplets, the flow of air provided to entrain ammonia gas in the flow.

A method and system to significantly reduce odor emissions caused by ammonia and other noxious gasses and reduce nitrogen levels in animal husbandry wastewater effectively and efficiently by the use of flush water that has been biochemically conditioned to lower the pH thus reducing the level of un-ionized compounds including NH.sub.3 which can volatilize into the atmosphere and which method and system can also be used to remove ammonia and nitrogen from the wastewater system. The present disclosure includes the use of flush water that has been biochemically conditioned to lower its pH thus sequestering non-ionized ammonia from being released from a liquid as ammonia gas. This disclosure relates to the new use of nitrification for biochemical conditioning of wastewater for use as flush water to reduce atmospheric ammonia emissions.