1672results about "Waste water treatment from food industry" patented technology

A method for hydrogen production from biodegradable feedstocks in which a feedstock having at least one biodegradable solid is introduced into a first stage anaerobic bioreactor operating at thermophilic conditions to form a liquid effluent which includes fatty acids. The liquid effluent is transferred through a plurality of hollow semipermeable fibers disposed in a second stage anaerobic bioreactor having a light transmitting wall, which hollow semipermeable fibers have an outer surface coated with a biofilm of photosynthetic bacteria, which photosynthetic bacteria, using the nutrients in the hollow fibers and the incoming light, generates hydrogen.

The invention is directed to a wastewater treatment system having an anoxic biological treatment zone, an aerobic biological treatment zone and a separator. The concentration of oxygen in streams within the system is strategically managed for improved removal of nutrient from the wastewater. A source of biodegradable carbon may be introduced to reduce the concentration of oxygen within the system. An effective treatment time under anoxic or aerobic conditions may further be varied.

A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and flocculated solids; and separating the water from the flocculated solids using a dewatering device.

The present invention provides an integrated system for treatment of biodegradable waste, including sewage sludge, forestry waste, food waste, agricultural waste, municipal waste, and the like. The integrated system comprises an anaerobic reactor, at least one aerobic reactor, a filtration device, and a desalinization device.

The invention discloses a water disposal facility and method. The water disposal facility comprises a membrane desalination unit, a first channel, a second channel, an electric separation unit, a third channel, a fourth channel, a sediment unit, a fifth channel, a sixth channel, a seventh channel, and an additive unit, wherein the first channel is used for inputting a first input flow into the membrane desalination unit; the second channel is used for outputting a first product flow with the salt content lower than that of the first input flow from the membrane desalination unit; the third channel is used for outputting a first discharge flow with the salt content higher than that of the first input flow from the membrane desalination unit into the electric separation unit; the fourth channel is used for outputting a second product flow with the salt content lower than that of the first discharge flow from the electric separation unit; the fifth channel is used for outputting a second discharge flow with the salt content higher than that of the first discharge flow from the electric separation unit into the sediment unit; the sixth channel is used for outputting a second input flow with the salt content lower than that of the second discharge flow from the sediment unit into the electric separation unit; the seventh channel is connected with the sediment unit and is used for discharging the discharge flows; and the additive unit is communicated with at least one of the electric separation unit and the sediment unit.