Optimal control method for water impeller of AAO (anaerobic-anoxic-oxic) process biological tank
A technology of optimization control and flow booster, which is applied in the direction of chemical instruments and methods, adaptive control, general control system, etc., can solve the problems of limited energy consumption reduction of energy-saving regulation models, and achieve the effect of improving energy consumption reduction
Pending Publication Date: 2022-08-09
ZHEJIANG SUPCON INFORMATION TECH CO LTD
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is: the current AAO oxidation ditch control system has not established a corresponding energy-saving control model, resulting in a limited technical problem in energy consumption reduction
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[0059] The specific embodiments of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0060] The plane structure of the biological pool in this embodiment is as follows: figure 1 As shown in the figure, after pretreatment, the wastewater enters the anaerobic tank A as influent F and passes through the anaerobic reactor, so that the high COD substances are partially decomposed, and then enters the anoxic section, including the 1# anoxic tank B1 and the 2# anoxic tank B2 and 3# anoxic tank B3, carry out denitrification process, and then the aerobic section for oxidative degradation of organic matter and nitrification reaction, namely 1# aerobic tank C1, 2# aerobic tank C2 and 3# aerobic tank C3 . In order to ensure the efficiency of denitrification, a part of the effluent from the aerobic stage enters the anoxic stage through reflux, and is mixed with the effluent from the anaerobic s...
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The invention discloses an AAO process biological pool water impeller optimization control method, a monitoring system monitors production data collected from a PLC control system in real time, and an optimization algorithm control unit can calculate and control the minimum starting number of water impellers in real time. According to the method, the model with the minimum number of the flow impellers required by normal operation of the biological tank is constructed, the operation states of the biological tank and the flow impellers are monitored in real time through the PLC control system, the constructed model is corrected and optimized, and then the operation mode and the optimal combination mode of the flow impellers are configured in real time; according to the method, the initial model of the minimum opening number of the water impellers is corrected and optimized, the water impellers in the biological tank are regulated and controlled according to the processed model of the minimum opening number of the water impellers, compared with an AAO regulation and control system without establishing a corresponding energy-saving regulation and control model, the energy consumption reduction range is improved, and the energy consumption is reduced under the condition that the effluent quality is guaranteed to reach the standard. And the purposes of saving energy and reducing consumption are achieved.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an optimization control method for a flow pusher in an AAO process biological pool. Background technique [0002] A-A-O (Anaerobic-Anoxic-Oxic) is the synthesis of traditional activated sludge process, biological nitrification and denitrification process and biological phosphorus removal process for biological nitrogen and phosphorus removal process. It has good removal ability and is a commonly used urban sewage treatment process. As an important equipment of the biological pool, the flow propeller plays a positive role in promoting the circulating flow of the mixed liquid in the low-velocity area at the bottom of the biological pool, thus solving the problems of low flow rate and sludge deposition at the bottom of the biological pool, making the water flow more stable and air bubbles free. The action time is longer, and the microorganisms and the mixture are more effe...
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IPC IPC(8): G05B13/04C02F1/00C02F3/30
CPCG05B13/042C02F3/30C02F1/008C02F2301/08C02F2209/005Y02W10/10
Inventor 陈燕飞付炜炜孙建彬金红达金秀军任宏卿
Owner ZHEJIANG SUPCON INFORMATION TECH CO LTD