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Optimization regulating method for waste water bio-treatment system process

A technology for biological treatment and wastewater, applied in sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problems of lack of economic benefits, optimization of sewage treatment system, lack of sewage treatment system technology, etc.

Inactive Publication Date: 2010-05-19
NANJING UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0004] These published mathematical model methods focus on the study of the reaction mechanism in sewage treatment, lack of corresponding depth on how to improve the economic benefits of the sewage treatment system, or only study a few limited parameters, and do not solve the sewage treatment system as a whole. process optimization

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  • Optimization regulating method for waste water bio-treatment system process
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  • Optimization regulating method for waste water bio-treatment system process

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Embodiment 1

[0061] In order to adopt experimental data to further test the rationality of the optimal control method of the present invention, measure 6 degradation kinetic parameters q of purified terephthalic acid (PTA) waste water max 、K sq , μ max 、K sμ , Y t and K d . The experimental design of degradation kinetics comes from "Environmental Biotechnology Experiment" (Nanjing University Press, Cheng Shupei, 1992, Nanjing). And the engineering strain Fhhh was constructed by protoplast fusion technology, which was used in the PTA wastewater treatment site project. The site project was designed by the traditional activated sludge method, and the volume of the aeration tank was 9.84m 3 . The PTA wastewater treatment site project has been in operation for more than 180 days. The on-site engineering is divided into four stages according to its different control methods (see Table 4).

[0062] Table 4 Optimal control mode of PTA wastewater treatment site engineering

[0063]

[0...

Embodiment 2

[0076] In order to further compare the reliability of the present invention, we will report 10 values ​​based on the reported values ​​(Lee and Lin, 1999; Woodard, 2001; Qin, 1989) of 26 process parameters of different concentrations of wastewater by activated sludge process Parameter values ​​(including: q max 、K sq , μ max 、K sμ , Y t , SVI, Q o , S o , S ei and x ei ) is substituted into the present invention, thereby obtained the optimal value of remaining 16 parameters (comprising: S e 、X e , Q, X, X s 、X r , θ, V, M t , Q o , Q e ,μ,q,θ c 、K d and Y obs ). The results show that compared with the reported data, most of the data obtained by the optimization calculation of the present invention have a very high degree of coincidence, such as: V, HRT, SRT, Q r etc., wherein, compared with the data of the above-mentioned 3 references, the optimized data of the reactor volume only differ by 4.4%, 8.6% and 5.9% respectively, which shows that the present invent...

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Abstract

An optimizing control method for the biologic treating system of sewage features that starting from the technological parameters of the sewage treating system, the kinetic parameters of sewage, the minimal volume of reactor, the materials balancing principle, Monod equation and the circulating variables including BOD content, biomass concentration and returned amount are used to create a mathematical model for the sewage treating technology.

Description

technical field [0001] The invention relates to a method for optimizing and regulating the process of a wastewater biological treatment system, in particular to a method for optimizing and regulating the process of an activated sludge wastewater biological treatment system by using a mathematical model. Background technique [0002] There are more and more researches on the application of mathematical models in the field of environmental pollution prevention and control. The research work in this area is mainly through the simulation and simulation of environmental problems to design environmental treatment processes and optimize environmental pollution control processes, so as to better solve environmental problems . [0003] The application of many information technologies in the field of wastewater treatment mainly focuses on the establishment of numerical models, database technology, artificial neural network (Artificial Neural Network, ANN), expert system (ES), fuzzy co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/00C02F3/02G05B13/04
CPCY02W10/10
Inventor 张徐祥李维新潘文扬孙石磊赵大勇吴兵贾海鹰程树培
Owner NANJING UNIV
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