Refuse leachate membrane treatment control system and method

A landfill leachate and control system technology, which is applied in the design of landfill leachate treatment, can solve problems such as non-standard discharge and unstable operation, achieve stable and reliable operation, improve reliability and anti-interference, and shorten development and debugging cycles Effect

Active Publication Date: 2014-03-26
EVERBRIGHT ENVIRONMENTAL PROTECTION CHINA +2
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AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the existing technology, the present invention aims to provide an advanced treatment and reuse process of landfill leachate, which solves the problem that domestic leachate cannot be discharged up to the standard by relying solely on biological treatment methods, and the operation of other treatment methods is unstable. The effluent can meet the standard of resource reuse

Method used

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  • Refuse leachate membrane treatment control system and method
  • Refuse leachate membrane treatment control system and method
  • Refuse leachate membrane treatment control system and method

Examples

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Embodiment 1

[0146] The sequence control modules of the ultrafiltration membrane group unit, the nanofiltration membrane group unit and the reverse osmosis membrane treatment unit will be described in detail below.

[0147] (1) Ultrafiltration membrane unit

[0148] Membrane bioreactor (MBR) is a new generation of activated sludge treatment technology for sewage. It uses membrane filtration to separate activated sludge from produced water. The filter membrane replaces the traditional secondary settling tank and reduces the occupation of the sewage plant. land area and increase the treatment capacity of the sewage plant. At the same time, due to the method of membrane filtration, the concentration of activated sludge in the biochemical tank can be increased, thereby increasing the degradation efficiency and improving the quality of the effluent.

[0149] In this example, the tube-type external MBR process is adopted, and the cross-flow flushing of the pump is used to control membrane fouli...

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Abstract

The invention relates to a refuse leachate membrane treatment control system and method. The refuse leachate membrane treatment control system comprises an ultrafiltration membrane set unit, a nanofiltration membrane set unit and a reverse osmosis membrane treatment unit, wherein each unit comprises a switch function module, a motor function module, a valve function module, a analog quantity function module, a controller function module and a sequential control function module; the switch function module is used for processing alarm signals of hardware and software; the motor function module is used for controlling equipment such as motors, blowers and pumps; the valve function module is used for controlling switch valve equipment; the analog quantity function module is used for performing analog quantity data processing; the controller function module is used for controlling equipment required for closed-loop control; and the sequential control function module is used for controlling equipment such as motors, blowers and pumps. According to the invention, the software developing and debugging period is greatly shortened, and the reliability and anti-interference performance of a control system are increased.

Description

technical field [0001] The invention relates to the field of landfill leachate treatment. Specifically, the invention relates to a landfill leachate membrane treatment control system and method, which is especially suitable for urban domestic garbage leachate membrane treatment control system and control method. Background technique [0002] At present, landfill technology or incineration technology is mainly used for the treatment of municipal solid waste in my country, and landfill leachate will be generated in the process of landfill or incineration treatment. The concentration of CODCr in landfill leachate is about 6000-70000mg / L, and the concentration of NH3-N is about 1000-2500mg / L. It also contains a large amount of dissolved solids (sodium, calcium, chloride, sulfate, etc.), which is a kind of water quality and water quantity. , organic wastewater with imbalanced ratio of microbial nutrient elements, extremely complex components, high concentration of pollutants, acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/44B01D61/58
Inventor 陈涛胡建民邵哲如王健生秦炳汉朱亮钱中华张二威郭娟
Owner EVERBRIGHT ENVIRONMENTAL PROTECTION CHINA
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