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Dissolved oxygen concentration control system, method and device

A technology of dissolved oxygen concentration and ammonia nitrogen concentration, which is applied in the field of dissolved oxygen concentration control system of biochemical reaction pool, can solve the problems of constant dissolved oxygen over-aeration and achieve the effect of accurate dissolved oxygen concentration and reduction of over-aeration

Active Publication Date: 2018-08-24
BEIJING ETECHWIN ELECTRIC
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Problems solved by technology

[0004] In view of the shortcomings of the existing methods, this application proposes a dissolved oxygen concentration control system, method and device to solve the problem of excessive aeration caused by constant dissolved oxygen

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  • Dissolved oxygen concentration control system, method and device
  • Dissolved oxygen concentration control system, method and device

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Embodiment Construction

[0031] When the inventors of the present application studied the dissolved oxygen control in sewage treatment, they found that there is currently an aeration rate control mode based on the quality of influent and effluent water, which can make the set value of dissolved oxygen change according to the change of water quality load. However, the models used are often fixed models, such as the ASM (Activated Sludge Model) model recommended by the International Water Association.

[0032] Based on the ASM model recommended by the International Water Association, the degradation rate of ammonia nitrogen in the aerobic pool is:

[0033]

[0034] In expression (1), Indicates the ammonia nitrogen concentration in the biochemical reaction pool (specifically referring to the aerobic pool), Indicates the dissolved oxygen concentration in the biochemical reaction pool (specifically refers to the aerobic pool); μ A Indicates the maximum growth rate of autotrophic bacteria, the unit i...

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Abstract

The embodiment of the invention provides a dissolved oxygen concentration control system, method, device, equipment and storage medium. The system comprises a sewage treatment control platform and multiple water quality testing instruments; the multiple water quality testing instruments are respectively arranged on multiple parameter acquisition positions of a sewage fluid path passage and electrically connected with the sewage treatment control platform; the multiple water quality testing instruments are used for collecting multiple pieces of water quality data of the multiple parameter acquisition positions of the sewage fluid path passage in a first time quantum; and the sewage treatment control platform is used for predicting dissolved oxygen concentration of a biochemical reaction basin in the sewage fluid path passage according to the water quality data in the first time quantum and a pre-trained dissolved oxygen concentration prediction model. Based on the pre-trained dissolvedoxygen concentration prediction model conforming to an actual application scenario, the dissolved oxygen concentration control system can predict the dissolved oxygen concentration in the biochemicalreaction basin more accurately, so that the prediction of the dissolved oxygen concentration is more suitable for the actual application scenario.

Description

technical field [0001] The application relates to the technical field of sewage treatment, in particular, the application relates to a system, method and device for controlling dissolved oxygen concentration in a biochemical reaction pool. Background technique [0002] With the rapid development of urbanization and industrialization, the treatment of industrial wastewater and domestic sewage is also facing more and more severe forms. In April 2015, the State Council promulgated the "Water Pollution Prevention and Control Action Plan", referred to as "Water Ten Measures". The discharge standard has been upgraded to urge the operator to upgrade the water plant to make the production process more refined. [0003] With the development of environmental protection awareness and environmental protection technology, the aeration link of sewage treatment plants has gradually changed from the previous excessive aeration to on-demand aeration to meet the needs of responding to changes...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCC02F3/006C02F3/02C02F2209/22Y02W10/10
Inventor 王景胜张强刘登峰
Owner BEIJING ETECHWIN ELECTRIC
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