Integrated sewage treatment system and sewage treatment method

By designing an integrated reaction tank area and internal sedimentation tank in the sewage treatment system, the problems of large land occupation, inconvenient maintenance and high operating costs in the existing sewage treatment technology are solved, and a more efficient and economical sewage treatment effect is achieved.

CN113184988BActive Publication Date: 2025-03-28SCIMEE TECH & SCI CO LTD
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Patent Information

Application Number
CN202010036938.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-01-14
Publication Date
2025-03-28
Estimated Expiration
2040-01-14

AI Technical Summary

Technical Problem

In the existing sewage treatment technology, physical isolation of the reaction zone leads to increased pipeline erection, large area, inconvenient maintenance and high operating costs, and the installation of sedimentation tanks and reflow devices is complex, which increases the complexity and cost of the system.

Method used

An integrated sewage treatment system is designed. The reaction tank is divided into hypoxic zone, micro-oxygen zone and aerobic zone according to the dissolved oxygen concentration gradient. Each zone is physically connected in sequence. The precipitation tank is set at the end of the aerobic zone. The isolation body is used to realize the self-gravity reflux of the sludge, reduce pipeline connections, and realize self-push flow reaction.

Benefits of technology

It reduces construction and investment costs, reduces floor area, simplifies the system structure, reduces operating costs, improves water effluent stability and compliance rate, and is convenient for system maintenance.

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Abstract

The present invention belongs to the technical field of sewage treatment, and specifically relates to an integrated sewage treatment system and a sewage treatment method. The integrated sewage treatment system includes a reaction tank, and the interior of the reaction tank is divided into three functional zones according to the range of dissolved oxygen concentration gradient, namely, anoxic zone, microaerobic zone, and aerobic zone, and the anoxic zone, microaerobic zone, and aerobic zone are physically connected in sequence. Different from the conventional technology that separates the functional zones into different pools and sets up pipes between the relevant pools, the present invention divides the different functional zones according to the range of dissolved oxygen concentration gradient, without physical separation, which can not only avoid setting up many connecting pipes to reduce investment costs, but also avoid head loss and realize self-propelled flow reaction. The sedimentation tank is arranged inside the reaction zone, with a high degree of integration, so that the overall structure of the system is simple, remote monitoring and adjustment can be achieved, operation and maintenance are convenient, and the floor space can be reduced, and operating costs can be controlled. It has great promotion value and broad application prospects.
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