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Dynamic multistage anoxic / aerobic sewage treatment method

A sewage treatment method and technology for sewage treatment, applied in water/sludge/sewage treatment, water/sewage multi-stage treatment, chemical instruments and methods, etc., can solve the problems of low ammonia nitrogen removal efficiency and high energy consumption, and achieve enhanced ammonia nitrogen The effect of removing capacity, improving effluent quality, and improving removal capacity

Inactive Publication Date: 2012-09-26
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] Aiming at the problems of high energy consumption and low ammonia nitrogen removal efficiency in the existing sewage treatment technology, the technical problem to be solved by the present invention is to provide a dynamic multi-stage Anoxic / Aerobic Wastewater Treatment Methods

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  • Dynamic multistage anoxic / aerobic sewage treatment method
  • Dynamic multistage anoxic / aerobic sewage treatment method
  • Dynamic multistage anoxic / aerobic sewage treatment method

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] The dynamic multistage anoxic / aerobic sewage treatment method of the present invention comprises the following steps:

[0045] Install an aeration device at the bottom of the aeration tank of the sewage treatment plant;

[0046] Establish a dynamic multi-stage anoxic / aerobic wastewater treatment process model;

[0047] On the basis of the above sewage treatment process model, determine the oxygen supply energy consumption performance function and constraint conditions of the dynamic multi-stage anoxic / aerobic sewage treatment process;

[0048] On the basis of the above-mentioned dynamic multi-stage anoxic / aerobic wastewater treatment process model and the performance function of oxygen supply energy consumption, two process parameters are dynamically determined through the optimization calculation method: one is the area distribution of the an...

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Abstract

The invention relates to a dynamic multistage anoxic / aerobic sewage treatment method. The method comprises steps of: installing an aeration apparatus at bottom of an aeration tank; establishing a dynamic multistage anoxic / aerobic sewage treatment process model; determining an oxygen supply energy consumption performance function and constrained conditions of the dynamic multistage anoxic / aerobic sewage treatment process; dynamically determining two technological parameters of area distribution for anoxic zone and aerobic zone, and an operation period of the dynamic multistage anoxic / aerobic process, based on the above dynamic multistage anoxic / aerobic sewage treatment process model and the oxygen supply energy consumption performance function; and forming a configuration containing a plurality of anoxic zones and aerobic zones in the aeration tank by adjusting aeration rate of the aeration apparatus. The method of the invention can raise ammonia nitrogen removal capability in the sewage treatment process and reduce energy consumption of the sewage treatment process on the premise of guaranteeing stable and standard reached water outlet.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a dynamic multi-stage anoxic / aerobic sewage treatment method. Background technique [0002] With people's attention to environmental issues, the country's standards for sewage discharge are becoming more and more stringent, especially higher requirements for the ammonia nitrogen removal capacity of sewage treatment plants. [0003] At present, water bodies in many countries and regions in the world have serious eutrophication phenomenon. The main substances causing eutrophication in water bodies are nitrogen and phosphorus. Nitrogen and phosphorus removal has become a common concern of all countries in the world. In recent years, cyanobacteria blooms have broken out in many watersheds such as Taihu Lake in my country. The reason is that a large amount of urban domestic sewage, industrial wastewater, and agricultural production and life pollutants containing ammonia nitrogen and ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 苑明哲孙阳于广平王宏于海斌孙梅滕琳琳王景扬
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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