A rural sewage treatment device and method

The rural sewage treatment device, designed with a biological rotating disc, porous nylon rope, and modular filter media box, solves the problems of water volume fluctuations and the utilization of treated sewage, achieving stable treatment and increased farmland irrigation.

CN117326747BActive Publication Date: 2025-11-07RIZHAO URBAN CONSTRUCTION ENVIRONMENTAL PROTECTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202311430950.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-31
Publication Date
2025-11-07
Estimated Expiration
2043-10-31

AI Technical Summary

Technical Problem

Existing rural sewage treatment equipment cannot effectively cope with water volume fluctuations and cannot utilize the treated sewage for irrigation, thus lacking the effect of increasing crop yields.

Method used

The device employs a combination of biological rotating discs, primary filtration tanks, sedimentation buffer tanks, and secondary filtration tanks. It utilizes porous nylon ropes to provide attachment sites for microorganisms, and the modular filter media box design enables offline backwashing. Combined with farmland irrigation pipes, the supernatant is used for irrigation.

Benefits of technology

It enables stable treatment of rural sewage under fluctuating water volume, reduces energy consumption, saves space, improves microbial attachment efficiency, and utilizes the supernatant for farmland irrigation to increase yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the technical field of rural sewage treatment, and particularly relates to a rural sewage treatment device and method, wherein the treatment device comprises, from front to back, a biological rotating disc, a first-stage filter tank, a sedimentation buffer tank and a second-stage filter tank; the sedimentation buffer tank comprises a supernatant layer at the upper part and a sludge sedimentation layer at the lower part, the supernatant layer is provided with a pipe for farmland irrigation, the sludge sedimentation layer is provided with a sludge discharge pipe, and the sludge discharge pipe is connected with a sludge treatment device; the present application has the following advantages and positive effects: (1) the supernatant layer is used for irrigation in the present application, and the supernatant of the sedimentation buffer tank plays a role in increasing the yield of grain crops, economic crops and vegetables; (2) the porous nylon rope is used to improve the microorganism adhesion efficiency and reduce the space requirement, thereby further saving space; meanwhile, the porous nylon rope has a lower mass than the disc, and can greatly reduce energy consumption; (3) the design of the module filter material box enables the second-stage filter tank to operate continuously.
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Citation Information

Patent Citations

  • Modular bioretention pond

    CN114956473A

  • Small integrated sewage treatment system

    CN209383628U

  • Single household ecological purification tank

    CN209853939U

  • Liftable modular biological aerated filter

    CN215946873U