Emergency control method for sewage treatment system for treating abnormal influent/effluent quality

A technology for sewage treatment system and influent and effluent water quality, which is applied in the direction of water/sewage multi-stage treatment, neutralized water/sewage treatment, biological water/sewage treatment, etc., and can solve problems such as inability to recover in time, emergency treatment of influent impact load, etc. , to achieve the effects of improving impact load resistance, lifting and recovery treatment effects, strong generalizability and practicability

Inactive Publication Date: 2014-06-18
SHANDONG ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0008] Aiming at the problems existing in the existing urban sewage treatment technology that cannot deal with the shock load of influent well in emergency and cannot recover in time after the water quality deteriorates, the pres

Method used

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  • Emergency control method for sewage treatment system for treating abnormal influent/effluent quality

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[0026] The present invention provides a sewage treatment system emergency control method for dealing with abnormal inflow and outflow water quality, which aims at the abnormal inflow and outflow of urban sewage treatment plants, and proposes corresponding emergency control operation and system recovery modes. Specific as figure 1 As shown, including the following steps:

[0027] (1) First, according to the data monitored by the online detector installed at the main water inlet of the sewage treatment plant, it is judged whether the sewage treatment plant is about to be impacted by abnormal water inflow (that is, whether there is high organic concentration, high nitrogen sewage or sewage in a certain period of time). Poisonous sewage flows into the sewage treatment plant); the abnormal influent refers to the COD (organic matter) or KN (Kjeldahl nitrogen) concentration of the influent water exceeding the design influent index by more than 20%, pH The value is less than 5.5 or grea...

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Abstract

The invention relates to an emergency control method for a sewage treatment system for treating abnormal influent/effluent quality. The emergency control method comprises the steps of firstly, judging weather a sewage treatment plant is impacted by abnormal influent; secondly, judging weather an effluent quality index belongs to abnormal effluent; if detecting to find abnormal influent within a certain period of time, regulating an operation condition according to different exceeding conditions; if detecting to find abnormal effluent within a certain period of time, starting up emergency agent addition to improve the treatment effect in time. The method is realized according to the overall regulation thinking that the impact of influent impact to the sewage treatment system is reduced through regulating process control parameters when abnormal influent of a sewage plant appears, and the system function is restored in time through adding an emergency agent when abnormal influent of the sewage plant appears; in addition, the real-time control for front feed and back feed is realized by sufficiently utilizing online monitored data. The method is low in investment and capable of effectively handling the influent impact load, rapidly improving and restoring a system treatment effect, exerting the treatment capability of a sewage treatment facility to the maximum extent and increasing the rate of reaching the standard.

Description

technical field [0001] The invention relates to an emergency control method for dealing with the impact of influent water quality and abnormal treatment effect on sewage treatment facilities, and belongs to the technical field of sewage treatment. Background technique [0002] The urban sewage treatment plant is a factory that purifies and treats the sewage entering the urban sewage collection system. The sewage entering the urban sewage collection system includes domestic sewage of urban residents, government agencies, schools, hospitals, commercial service agencies and various public facilities. Industrial wastewater and initial rainwater discharged into the urban sewage collection system. At present, according to the different water quality and treatment requirements, although the treatment process of sewage treatment plants is slightly different, they are generally divided into three levels: 1. Primary treatment (also known as primary treatment), the treatment object is ...

Claims

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Application Information

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IPC IPC(8): C02F1/66C02F9/14C02F3/34C02F3/30
Inventor 李刚孙洪涛于红霞高磊贺波
Owner SHANDONG ACAD OF ENVIRONMENTAL SCI
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