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Method for checking parameters of activated sludge mathematical model

A mathematical model, activated sludge technology, applied in the fields of electrical digital data processing, general water supply saving, special data processing applications, etc., can solve the problems of difficult to respond to the interaction of parameters, time-consuming and labor-intensive, and a large amount of basic data.

Inactive Publication Date: 2015-05-13
HUNAN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of time-consuming and labor-intensive check of the existing model parameters, it is difficult to reflect the mutual influence effect of each parameter, and a large amount of basic data is required, and to provide a test with less workload and save time. A method for checking the parameters of the activated sludge mathematical model with high calculation accuracy

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  • Method for checking parameters of activated sludge mathematical model
  • Method for checking parameters of activated sludge mathematical model
  • Method for checking parameters of activated sludge mathematical model

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] The design treatment capacity of an actual urban sewage plant is 120,000 m 3 / d, the secondary biological treatment process is MSBR process, and the process flow chart is as follows figure 1shown. The influent water enters the fine grid after being lifted by the pump station, and then enters the MSBR reaction tank after being removed by the aeration degreasing grit chamber to remove inorganic particles and grease; the effluent water is sterilized by ultraviolet rays and then discharged into the sea. The present invention will be described in further detail below in conjunction with the actual situation of the sewage plant.

[0042] The method of activated sludge mathematical model parameter checking of the present invention is applied to this plant, and concrete steps are as follows:

[0043] Step 1: According to the basic conditions...

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Abstract

The invention discloses a method for checking parameters of an activated sludge mathematical model. The method mainly includes the first step of constructing the activated sludge mathematical model and determining basic data for model parameter checking, the second step of screening the parameters, needing to be checked, of the activated sludge mathematical model, the third step of conducting identification and ranking analysis on parameter sets, needing to be checked, of the activated sludge mathematical model through the calculation methods of sensibility, a colinearity index gamma k and an identifiable degree rho k, the fourth step of solving the parameter sets by adopting the weighted error quadratic sum of four indexes of COD, NH4<+>-N, TN and TP of discharged water as an objective function according to the model so that checked model parameter sets can be obtained, and the fifth step of substituting the checked model parameter sets into the activated sludge mathematical model to carry out dynamic examination and examining whether parameter checking meets requirements or not. According to the method, the needed workload is small, calculation precision is high, the problem that the parameters influence one another is reduced or solved, and the method can be widely applied to checking parameters of various activated sludge treatment process mathematical models.

Description

technical field [0001] The invention belongs to the technical field of activated sludge mathematical model simulation technology, and in particular relates to a method for checking parameters of an activated sludge mathematical model. Background technique [0002] IAWQ (International Association on Water Quality) has successively launched a series of activated sludge mathematical models such as ASM1, ASM2, ASM2d and ASM3, which have received extensive attention from the sewage treatment engineering community. The theoretical cornerstone of operation control and optimization. [0003] The ASMs model contains a large number of chemometric parameters and kinetic parameters. IAWQ gives the default values ​​of the parameters of the ASMs model, but there is a certain deviation between the parameter values ​​of the model and the default values ​​in the actual sewage plant application, which restricts the mathematical model of activated sludge. The promotion and development of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02A20/152
Inventor 邓仁健任伯帜
Owner HUNAN UNIV OF SCI & TECH
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