An optimal control method for reducing energy consumption in iceas sewage treatment process

Abstract

The invention provides an optimized control method for reducing energy consumption in an ICEAS sewage treatment process, including: sedimentation control: when sedimentation begins, the water inlet hoist is closed, and then reopened after a delay. The secondary injection water sinks; decanting control: at the beginning, open the drain valve, after the delay time, close the water inlet hoist; at the end, the water inlet hoist starts to open under the action of the "close" signal of the drain valve; stirring Stage: Set a stirring delay, according to the second water injection time for the decanter to sink the second water injection. After the delay, start stirring; aeration control: in the aeration delay stage, continue jet agitation; after the aeration delay, carry out aeration, and control the fan frequency and the number of aeration branches open according to the effluent ammonia nitrogen and DO data ; Period adjustment: adjust the aeration time and stirring delay. The beneficial effects of the invention are as follows: the labor intensity of operators is reduced, the quality of the effluent is improved, and the cost of electricity consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an optimized control method for reducing energy consumption in an ICEAS sewage treatment process. Background technique [0002] ICEAS (Intermittent Cycle Extended Aeration) divides the SBR reaction cell into two parts along the length direction, the front part is not pre-reaction zone, and the rear part is the main reaction zone. The pre-reaction zone plays the role of adjusting the water flow, and the main reaction zone is the main body of aeration and precipitation. ICEAS is a continuous water feed process, which not only feeds water in the reaction stage, but also feeds water in the precipitation and decanting stages. After the sewage enters the pre-reaction zone, it enters the main reaction tank in an advective flow state through the connecting port at the bottom of the partition wall. Water distribution is greatly simplified and operation is more flexible. [000...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the traditional ICEAS process control needs to consume a lot of energy of the staff, the degree of intelligence is not high, and the operation mode is single, and the energy consumption is large, the present invention provides an optimal control method for reducing energy consumption of the ICEAS sewage treatment process, Applied in the optimized ICEAS sewage treatment system;

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