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MBR (Membrane Bioreactor) integral sewage treatment equipment with automatic sludge discharge

A sewage treatment equipment and automatic drainage technology, applied in water/sludge/sewage treatment, biological water/sewage treatment, water treatment parameter control, etc. Maintain stability and control flexibility

Inactive Publication Date: 2019-01-08
宁波中车时代电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Among the above-mentioned MBR integrated sewage treatment equipment, there is no or only manual sludge discharge device, and there is no function of automatic sludge removal, so it cannot meet the actual needs

Method used

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  • MBR (Membrane Bioreactor) integral sewage treatment equipment with automatic sludge discharge

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with drawings and embodiments.

[0019] Such as figure 1 As shown, the MBR integrated sewage treatment equipment with automatic sludge discharge includes pretreatment area 20, anoxic area 19, aerobic area 15, membrane area 11, sludge discharge pipe 2, and PLC control system (not shown in the figure).

[0020] A water distributor 23 is installed at the bottom of the pretreatment area 20. Sewage enters the pretreatment area 20 through the water inlet pipe 21. The water distributor 23 homogeneously mixes the sewage and stirs the bottom sludge to avoid sludge deposition at the bottom of the equipment.

[0021] The pretreatment area 20 is also provided with a return line 12, which enters the pretreatment area 20 from the membrane area 11 through the return pump 8 through the return line 12, and the sewage feed water is mixed with the reflux liquid returned from the membrane area through the return line 12, ...

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Abstract

The invention discloses MBR (Membrane Bioreactor) integral sewage treatment equipment with automatic sludge discharge. The equipment comprises a pretreatment zone, an anoxic zone, an aerobic zone anda membrane zone which are partitioned, wherein the membrane zone is provided with an MBR membrane component; a sludge discharge tube with an electronic valve is arranged at the bottom of the pretreatment zone; a sludge concentration detection device is mounted in the pretreatment zone; the sludge concentration detection device is connected with a PLC (Programmable Logic Controller) control system;a temperature sensor is arranged in the membrane zone; the temperature sensor is capable of detecting the temperature of a membrane zone liquid on line and is used for transmitting detection data tothe PLC control system; a water quality detection device for detecting effluent ammonia concentrations is mounted at a membrane effluent outlet; the detection data are transmitted to the PLC control system; the PLC control system is used for calculating a sludge amount to be discharged according to collected temperature data, sludge concentrations, effluent ammonia concentrations and set sludge ages; the sludge amount is achieved by controlling the opening degree of the electronic valve. By adopting the equipment, an automatic sludge discharge mode is adopted, fixed-time fixed-amount sludge discharge can be achieved without manual operation, and system stability can be maintained.

Description

technical field [0001] The invention relates to an MBR integrated sewage treatment equipment. Background technique [0002] There are many forms of existing MBR integrated sewage treatment equipment. [0003] Chinese patent document CN107082493A discloses a facultative MBR integrated sewage treatment equipment. The equipment includes an anaerobic tank, anaerobic tank, and MBR reaction tank connected in sequence. A certain amount of suspension ball filler is added to the anaerobic tank. Anaerobic microorganisms grow inside the floating ball filler, and aerobic microorganisms grow outside. The pool performs anaerobic and aerobic reactions simultaneously. [0004] Chinese patent document CN204588949U provides an integrated A2O-MBR sewage treatment equipment, including filter grille and A-A2 / O biological pool, MBR biofilm pool, disinfection pool with water outlet; filter grille is set on A- Above the A2 / O bio-pool; A-A2 / O bio-pool includes sludge denitrification pool, anaerob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F3/308C02F2209/16C02F2209/02C02F2209/005C02F2209/14C02F2203/006
Inventor 初红权徐武东马锡敏周树美孔伊芳马立峰陈国高明林
Owner 宁波中车时代电气设备有限公司
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