Rice winery wastewater treatment system

Abstract

The invention relates to a rice winery wastewater treatment system. The rice winery wastewater treatment system comprises a wastewater regulating tank, a reinforced air flotation tank, a filler type anoxic / anaerobic reaction tank, a biochemical reaction circulating ditch and a clean water tank, wherein the reinforced air flotation tank comprises a mixing area and a separation area from bottom to top; the filler type anoxic / anaerobic reaction tank comprises an anaerobic-aerobic section, an anoxic section and an anaerobic section divided by baffles; the biochemical reaction circulating ditch comprises an anaerobic area, an anoxic area, an anaerobic-aerobic area, an aeration area, a settlement area and a sand filtration area divided by an elliptic outer enclosing wall, an arc-shaped flow partition wall and a circular inner enclosing wall, wherein the anaerobic area is located at the innermost portion of the biochemical reaction circulating ditch and on the inner side of the circular inner enclosing wall; the anoxic area is located between the circular inner enclosing wall and the arc-shaped flow partition wall; the anaerobic-aerobic area is located between the circular inner enclosing wall and the elliptic outer enclosing wall; the aeration area is located between the arc-shaped flow partition wall and the elliptic outer enclosing wall; the settlement area is located on the outer side of the elliptic outer enclosing wall and at the tail end of the aeration area, and the sand filtration area is located on the outer side of the elliptic outer enclosing wall.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment system of a rice wine factory. Background technique [0002] The rice winery wastewater using rice and soybeans as the raw materials for brewing is composed of rice washing wastewater, soybean cooking wastewater and wine distillation residue (dregs). It mainly contains carbohydrates, followed by protein, fat and fermentation products ethanol and by-products acetone, butanol and so on. [0003] Since the traditional activated sludge process can no longer meet the treatment requirements of this high-carbon and high-nitrogen wastewater, the research on the combined design process provides a new process for the treatment of this high-carbon and high-nitrogen wastewater in rice winery wastewater. new ideas. SUMMARY OF THE INVENTION [0004] The technical problem to be solved by the present invention is: in order to solve the problems in the abov...

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Problems solved by technology

[0003] Since the traditional activated sludge process can no longer meet the treatment requirements for this high-carbon and high-nitrogen wastewater, a new process is provided for the treatment of this high-carbon and high-nitrogen wastewater from rice wine factory wastewater through the research on the combined design process. new ideas

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