Membrane pollution optimized control specialist system of membrane reactor

A technology of membrane bioreactor and expert system, which is applied in the field of membrane fouling optimization control applied to membrane bioreactor, membrane bioreactor and intelligent control system by expert system, can solve the complex influence of membrane fouling and the inability to control the actual process Operation and other problems, to achieve the effect of slowing down the membrane fouling rate, reducing the dosage, and prolonging the life of the membrane module

Inactive Publication Date: 2009-12-23
DALIAN UNIV OF TECH
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Problems solved by technology

The source of the membrane fouling substances in the membrane bioreactor is the activated sludge mixed solution, and the properties of the mixed solution have a more complicated influence on the membrane fouling.
Research on membrane fouling factors and membrane fouling control is a research hotspot in the field of environmental engineering at home and abroad. The number of published articles has increased year by year, but the research results are only grasped by a few researchers and cannot be used to control the actual operation of the process.

Method used

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  • Membrane pollution optimized control specialist system of membrane reactor

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Embodiment

[0021] The membrane bioreactor process is used to treat wastewater from a certain hotel, and the volume of treated wastewater is 60m 3 / d, the COD concentration is 300-500mg / L, and this intelligent control system is used to automatically regulate the membrane bioreactor.

[0022] Automatically collect information through online monitoring instruments. When the mixed liquid sludge concentration exceeds 10g / L, the expert system automatically starts the sludge discharge pump to discharge the sludge until the sludge load rises to 0.35kgCOD / kgMLSS·d, and then automatically shuts down the sludge discharge pump. When it is monitored that the sludge load is less than 0.3kgCOD / kgMLSS·d for 4 consecutive hours, or the sludge load is less than 0.3kgCOD / kgMLSS·d for 5 times within 24 hours, the sludge discharge pump is automatically started to discharge the sludge until the sludge load rises As high as 0.35kgCOD / kgMLSS·d, the sludge discharge pump will be automatically shut down. When t...

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Abstract

The invention relates to a membrane pollution optimized control specialist system of a membrane reactor, which belongs to the cross field of environmental engineering techniques and computer software techniques and is characterized by building a technological parameter adjusting and controlling rule of the membrane reactor, constructing the membrane pollution optimized control specialist system of the membrane reactor, realizing the prediction and the specialist diagnose of the membrane pollution aggravation of the membrane reactor and completing the automatic adjusting and controlling function according to the weight and the direction of membrane pollution factors in active sludge mixture of the membrane reactor for treating life sewage under different working conditions to the membrane pollution influence, thereby realizing effective delay of the membrane pollution speed. The system has self-learning capacity, and a succeed adjusting and controlling case expands the rule base through the self-learning of the system. The invention can effectively prolong the service life of the membrane assembly, reduce the chemical agent consumption and lower the operation cost. The effective control of the membrane can lead the process of the membrane reactor to be more suitable for the national conditions, thereby promoting the development of water saving program.

Description

technical field [0001] The invention belongs to the intersecting field of environmental engineering technology and computer software technology, relates to a membrane bioreactor and an intelligent control system, and particularly relates to a membrane pollution optimization control method applied by an expert system to a membrane bioreactor. Background technique [0002] Membrane bioreactor (membrane bioreactor MBR) is an emerging technology that applies membrane technology to sewage treatment. In a membrane bioreactor, the degradation of pollutants by microorganisms and the protection of pollutants by membranes can be achieved simultaneously in a compact space. Separation, and there is a synergistic effect between degradation and separation. Compared with traditional sewage treatment processes, it has the advantages of good effluent quality, small equipment footprint, high sludge concentration, low residual sludge output, and easy automation control. It is considered to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04C02F3/12
CPCY02W10/10
Inventor 张捍民陈志奎杨凤林刘鹏宵陶莹
Owner DALIAN UNIV OF TECH
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