A system for digesting biodigestible feed that preferably includes the steps of comminuting the feed, introducing feed, an oxygen-containing gas, an accelerant, and bacteria into a digestion zone, the bacteria being suitable for digesting the feed under aerobic, anaerobic, and anoxic conditions. The contents of the digestion zone can be changed from aerobic operation to either anoxic or anaerobic operation, or vice versa, without changing the bacteria in the digestion zone.

Methods, apparatus, and system for a compost system to reduce operator time, reduce power utilization, increase intensity of land use by the compost system, increase efficiency of biological activity in bulk material composted by the compost system, reduce odor production by the compost system, and to reuse water applied to and which may leach out of bulk material. The compost system may comprise an aerated pad, a pivot arm attached to a center of the aerated pad, and a control module. The aerated pad may receive a bulk material to be composted into a compost product. The aerated pad may comprise an air nozzle and a drain to direct water from the bulk material to a water collection system. The pivot arm may deposit the bulk material on the aerated pad. The control module may manage a temperature inside the bulk material using the air nozzle.

Apparatus and processes to grow a biomaterial made of aerial mycelium by sensing and controlling airborne mist concentration, regardless of relative humidity. A growth matrix comprising a growth medium and a fungus, is grown under controlled environmental conditions to produce a mycelium product. To control growth conditions precisely and efficiently, airborne mist is electronically detected using one or more sensors, configured to measure airborne mist concentration visually, optically, chemically, electromagnetically, or by laser, ultrasonically, with radar, or other means. Electronic detection of airborne mist using one or more sensors generates a signal that is transmitted to a processor that can either maintain, increase, or decrease airborne mist concentration in a growth environment. The present invention provides processes of growing mycelium that are repeatable and resource efficient, while providing high quality and quantity mycelium-based products.

The present disclosure provides methods for treating one or more grains in an ethanol plant or alcohol brewery, methods of drying, cooling, disease control of dried distillers grains with soluble (DDG), barley, or brewer's spent grain (BSG), and a system for treating one or more grains in an ethanol plant or alcohol brewery by these disclosed methods.

A system for comprehensive treatment of cultivation pollution in a scalable pig farm includes a source separation pigsty, a pigsty flushing water treatment system, a solid-liquid separation system, a solid high-temperature aerobic fermentation system, a liquid high-temperature aerobic fermentation system, an odor and flue gas treatment system, a boiler system and a test and control system. The source separation pigsty is designed into a pigsty that separates feces and urine from rainwater, pigsty flushing water and residual drinking water. The sludge pump pumps the feces and urine to the solid-liquid separation device. Solids separated by the solid-liquid separation device are conveyed to the solid high-temperature aerobic fermentation system, and liquid separated by the solid-liquid separation device is conveyed to the liquid high-temperature aerobic fermentation system. The boiler system includes a boiler, a circulating pump, a hot water pipeline and a water return pipeline.

The present invention relates to a method for manufacturing a protein-rich biomass comprising at least one fermented substrate and at least one strain of an edible filamentous fungus, the method comprising the steps of: a) providing at least one substrate to be fermented, the substrate having total solid loading of from 51% to 85%; b) inoculating the at least one substrate with at least one strain of an edible filamentous fungus thus obtaining at least one inoculated substrate; c) setting a set of conditions, wherein said set of conditions comprises at least one of humidity level 20-100%), flow rate of a second gaseous fluid of from 0.25 to 4 vvm, temperature of from 30? C. to 45? C., light intensity of from 4.10.sup.14 Hz to 5.Math.10.sup.14 Hz and pH of from 3 to 7; d) fermenting the at least one inoculated substrate at the set of conditions while continuously monitoring at least one parameter, thus obtaining a protein-rich biomass comprising at least one fermented substrate and at least one strain of an edible filamentous fungus; wherein the set of conditions is amended as a function of the at least one parameter.

A device for continuous dry methanation in a fermenter having a closed tank having at least one compartment to ferment the slurry comprising at least 17% dry matter. An injector to inject pressurized gas close to the bottom of the compartment via at least one chimney that descends through the compartment. The injected gas rising through the slurry creates a convective movement in the slurry around the chimney to stir the matter at the bottom of the compartment. The tank can include a first compartment into which the slurry is introduced and a second compartment into which the hydrolyzed slurry flows after hydrolysis and acidogenesis in the first compartment. Methanogenesis takes place in the second compartment.

A process for optimizing the operation of a plug-flow fermenter for the anaerobic fermentation of organic wastes, wherein the plug-flow fermenter comprises a horizontally oriented fermenter tank and a stirrer, which stirrer comprises a stirrer shaft which traverses the interior of the fermenter tank in an axial manner and multiple paddles which are arranged on the stirrer shaft and protrude radially and also a drive, and the fermentation material is moved in the fermenter tank by means of the stirrer.

A power-generation system having a combined heat and power plant and a fermentation plant has an electrolysis plant, which is connected by lines to both the combined heat and power plant and to the fermentation plant. This arrangement enables a method in which heat from a combined heat and power plant can be used for a fermentation plant and additionally heat from an electrolysis plant can be used for the fermentation plant, whilst the oxygen from the electrolysis plant is used for the combined heat and power plant.

The present disclosure provides methods for treating one or more grains in an ethanol plant or alcohol brewery, methods of drying, cooling, disease control of dried distillers grains with soluble (DDG), barley, or brewer's spent grain (BSG), and a system for treating one or more grains in an ethanol plant or alcohol brewery by these disclosed methods.