Multi-stage AO biological membrane sewage treatment device

A sewage treatment device and biofilm technology, which are applied in biological water/sewage treatment, water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of low treatment efficiency and difficulty in reaching the reuse standard of effluent quality.

Pending Publication Date: 2021-05-28
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing sewage treatment equipment has low treatment efficiency and the effluent water quality is difficult to meet the reuse standard, and proposes a multi-stage AO biofilm sewage treatment device

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0018] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0019] refer to Figure ...

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Abstract

The invention discloses a multi-stage AO biological membrane sewage treatment device, and belongs to the field of sewage treatment. The multi-stage AO biological membrane sewage treatment device comprises an anaerobic sedimentation tank, the anaerobic sedimentation tank is communicated with an anaerobic digestion water storage tank, the anaerobic digestion water storage tank is communicated with a first aerobic biological reaction tank, the first aerobic biological reaction tank is communicated with an organic matter anaerobic digestion tank, the organic matter anaerobic digester is communicated with a second aerobic biological reaction tank, the second aerobic biological reaction tank is communicated with a sedimentation tank, the sedimentation tank is communicated with a backflow water storage tank, the backflow water storage tank is communicated with a decoloration and disinfection water storage tank, and the decoloration and disinfection water storage tank is communicated with an effluent water storage tank. According to the sewage treatment system disclosed by the invention, the multi-stage AO activated sludge reaction tanks are arranged, and the AO water treatment process, the membrane bioreactor and UV-O3 combined treatment are combined, so efficient nitrogen and phosphorus removal and deep disinfection of sewage are realized, and the purpose of sewage recycling is achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment and sewage reuse, in particular to a multi-stage AO biofilm sewage treatment device. Background technique [0002] In recent years, the country has paid more and more attention to the problem of agricultural water pollution and the human settlements in rural areas, and the construction of rural sewage treatment facilities and the coverage of pipe networks have increased significantly. Compared with aquaculture wastewater and farmland drainage, domestic sewage has a lower degree of pollution, higher treatment efficiency, and is easier to reuse; however, due to scattered living in rural areas, complex terrain, and lack of water resources in western regions, domestic sewage collection costs are high and centralized treatment The construction investment is high and the construction is difficult. Therefore, the miniaturization of rural domestic sewage treatment equipment has gradually become ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/28C02F1/32C02F1/78C02F3/30
CPCC02F1/283C02F1/32C02F1/78C02F3/302C02F9/00C02F2303/04
Inventor 李红娜姜凯阳朱昌雄
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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