Integrated sewage treatment system with multiple operation modes

By designing multiple operating modes and adjustable aeration devices in the sewage treatment system, combining multi-point water inlet and nitrification liquid reflux, the problem of single mode and high reconstruction costs in rural sewage treatment is solved, and the treatment mode is flexibly adjusted and the effect of reducing operation and maintenance costs.

CN112811574BActive Publication Date: 2024-12-24BEIJING SIQINGYUAN BIO TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202110057446.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-15
Publication Date
2024-12-24
Estimated Expiration
2041-01-15

AI Technical Summary

Technical Problem

The existing technology has problems in rural sewage treatment with a single sewage treatment model, high reconstruction costs, large area, needing dedicated personnel to be on duty, and high operation and maintenance costs in rural sewage treatment, which is difficult to adapt to the fluctuations in water quality and water volume and the improvement of emission standards.

Method used

An integrated sewage treatment system with multiple operating modes is designed, including multiple storied stools connected in sequence. Adjustable aeration devices are provided at the bottom of each stool. The dissolved oxygen state is adjusted by aeration amount to achieve aerobic and aversion. The conversion of oxygen and hypoxia chambers is carried out, and the multi-point water inlet and adjustable nitrification liquid reflux method is adopted to flexibly adjust the treatment mode.

Benefits of technology

The multiple applicability of the sewage treatment system is realized, the increase in investment costs caused by repeated reconstruction is avoided, the investment of operation and maintenance professionals is reduced, the investment is adapted to water quality changes and water effluent requirements is improved, and the treatment efficiency is improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN112811574B_ABST
    Figure CN112811574B_ABST
Patent Text Reader

Abstract

The embodiment of the present invention provides an integrated sewage treatment system with multiple operation modes, including: a water inlet pipe, a mixed liquor return pipe, a sludge return pipe and a plurality of sequentially connected bins; wherein an aeration device is arranged at the bottom of each bin and the aeration amount is adjustable, so as to realize the adjustable dissolved oxygen state of each bin; the first water outlet and the second water outlet of the water inlet pipe are respectively inserted into the first bin and the second bin, the mixed liquor return pipe is connected between the set aerobic bin and the set anoxic bin, the sludge return pipe is connected from the last bin to the first bin, the dissolved oxygen state of each bin is adjustable through the aeration amount, the purpose of multiple adjustable sewage treatment modes is realized by adopting a multi-point water inlet and adjustable mode and a nitrification liquid reflux adjustable mode, the aerobic-anaerobic-anoxic combination form is adjusted according to the change of incoming water quality and the effluent requirements, a plurality of operation modes are realized, the multiple applicability of the system is improved, and the increase of investment cost caused by repeated reconstruction is avoided.
Need to check novelty before this filing date? Find Prior Art