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Sewage treatment control method based on sequential clusters

A control method and sewage treatment technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as deterioration of effluent water quality, hydraulic disturbance, and influence on the operation status of secondary sedimentation tanks

Active Publication Date: 2014-05-14
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, in actual operation and management, the change of the sludge return flow is likely to affect the operation status of the secondary settling tank, causing hydraulic disturbance, and resulting in deterioration of the effluent quality. Therefore, the sludge return flow is usually maintained at a constant level and is not used as a control quantity

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  • Sewage treatment control method based on sequential clusters
  • Sewage treatment control method based on sequential clusters
  • Sewage treatment control method based on sequential clusters

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0045] A sewage treatment control method based on ordered clustering, such as figure 1 , including the following steps:

[0046] S1. Determine the dynamic mathematical model and its control structure adopted by the present invention;

[0047] The benchmark simulation model BSM1 provided by the International Water Association (IWA) is determined to be used as a dynamic mathematical model. This model defines the equipment layout, simulation model, sewage load, test procedures and evaluation standards of sewage treatment, and can be combined with various control schemes. Simulation to obtain a better control scheme, and at the same time, it can objectively evaluate different control schemes according to the given evaluation criteria; the model consists of 2 pre-anoxic tank...

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Abstract

The invention discloses a sewage treatment control method based on sequential clusters. The method includes the steps that control time periods are divided for changing conditions of sewage inlet quality and amount in a self-adaptive mode by the adoption of the sequential sample clusters; water outlet quality, aeration energy consumption and pumping energy consumption are considered comprehensively, the optimal set values of the concentration of dissolved oxygen in an aerobiotic pool and the concentration of nitrate nitrogen in an oxygen deficiency pool at each period are determined by the adoption of an artificial immune algorithm with a global searching ability, and the oxygen transfer coefficient and inner reflux quantity are adjusted in real time for a sewage system at different periods. According to the sewage treatment control method, operation energy consumption for sewage treatment is reduced on the premise of ensuring the water outlet quality.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment control method based on ordered clustering. Background technique [0002] With the rapid development of the construction of urban sewage treatment facilities in China, at least 3,000 sewage treatment plants in my country have reached the operating state at present, and the urban sewage treatment capacity has been improved, alleviating the pressure of water environmental pollution in my country's transformation and development; but high energy consumption The problem has also become prominent. The sewage treatment industry has become one of the energy-intensive industries. How to continuously deepen the concept of sustainable development of sewage treatment and reduce energy consumption in the process of sewage treatment has become a topic of close concern in the field of sewage treatment. Therefore, the research purpose of the present invention is clear, and the ...

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Application Information

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IPC IPC(8): G05B13/00
Inventor 许玉格宋亚龄罗飞林梅金陈立定张雍涛曹涛
Owner SOUTH CHINA UNIV OF TECH
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