Organic wastewater coupling type integrated treatment device

Abstract

The invention discloses an organic wastewater coupling type integrated treatment device. The treatment device comprises a tank body which is provided with hollow annular walls, wherein the annular walls include an inner wall and an outer wall; anoxic zones are arranged in spaces in the annular walls; the inner wall surrounds the middle of the tank body to form an aerobic zone; the aerobic zone and the aerobic zone are communicated through water through holes; and an aeration reflux device is located at the bottoms of the anoxic zones and the aerobic zone, and a solid-liquid separation device is arranged in the center of the upper part of the aerobic zone. According to the organic wastewater coupling type integrated treatment device, aerobic-anoxic and hydraulic clarification processes are coupled, and the aeration of the aerobic zone, the reflux of mixed liquid from the aerobic zone to the anoxic zones and the stirring of the anoxic zones are simultaneously finished by virtue of the aeration reflux device; the solid-liquid separation device for the mixed liquid in the aerobic zone and activated sludge is lifted by virtue of gas stripping and negative pressure; and meanwhile, the activated sludge is naturally refluxed to the aerobic zone by virtue of a specific gravity difference of the sludge and water, so as to form the circulating of activated sludge residues. The organic wastewater coupling type integrated treatment device is high in integration degree, low in energy consumption, efficient and reliable, and occupies a small area.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an integrated sewage treatment equipment. Background technique [0002] With the advancement of industrialization and urbanization in our country, the increasingly serious water pollution not only reduces the use function of water bodies, but further aggravates the contradiction of water shortage, which has a serious impact on China's ongoing sustainable development strategy, and also seriously It threatens the drinking water safety of urban residents and people's health. In areas where the sewage pipe network is difficult to reach, most of the generated sewage is directly discharged into nearby water bodies, making water pollution more and more serious. [0003] Sewage biological treatment mainly uses the decomposition of microorganisms to convert organic matter in sewage into simple inorganic matter, so that sewage can be purified. It is one of the most widely used methods in m...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a coupling type integrated treatment device for organic wastewater to solve the shortcomings of the existing A / O sewage treatment process and hydraulic clarification method

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