Aeration tank zoning control method and system based on time dimension multivariate analysis

By performing partition treatment and multivariate analysis on the aeration tank of the sewage treatment plant, the aeration volume is accurately adjusted, and the problem of inaccurate control of the aeration volume in the prior art is solved, thereby reducing energy consumption and improving the efficiency of sewage treatment.

CN119493409BActive Publication Date: 2025-03-25SHANGHAI ENVIRONMENT PROTECTION GROUP +1
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Patent Information

Application Number
CN202510073242.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-03-25
Estimated Expiration
2045-01-17

AI Technical Summary

Technical Problem

The existing sewage treatment plants use uniform aeration or rough space distribution in the aeration tank, which leads to the inability to accurately control the aeration volume, resulting in problems of excessive aeration and high energy consumption.

Method used

The partition control method of aeration tank based on multivariate analysis based on time dimension is adopted. By partitioning the aeration tank, each aeration unit is independently controlled, combined with historical data analysis and model construction, the air volume and valve opening are accurately adjusted to realize the simulation and judgment of the ammonia nitrogen concentration in the effluent.

Benefits of technology

The precise control of the aeration energy consumption of the aeration tank is achieved, which reduces over-aeration and reduces the operating energy consumption of the sewage treatment plant.

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Abstract

The present application relates to a method and system for controlling the zoning of an aeration tank based on multivariate analysis of the time dimension. The method includes: collecting relevant data corresponding to each indicator of the aeration tank within a historical period; determining a target time point; analyzing the correlation between each indicator and the air volume at the target time point within n hours before and after the target time point, screening the time period with the highest correlation of each indicator, and generating an air volume set; summarizing the air volume set to generate a first historical air volume set; extracting a second historical air volume set from the first historical air volume set according to the established target DO concentration value interval, and obtaining a simulated concentration value of effluent ammonia nitrogen according to the minimum air volume and the valve opening of N aeration units, and judging whether it exceeds the target concentration value; if not, the air volume corresponding to the simulated concentration value and the valve opening of N aeration units are the actual air volume and the actual valve opening. The present application has the beneficial effect of facilitating the precise control of the aeration energy consumption of the aeration tank.
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