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Battery diaphragm coating head cleaning wastewater treatment device and treatment method

A technology for cleaning wastewater and battery diaphragms, applied in natural water treatment, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problems of difficult guarantee of effluent water quality, high requirements for operators, and high cost of wastewater treatment, and achieve easy Automatic control, stable and reliable system operation, and good water quality

Pending Publication Date: 2019-05-14
VONTRON MEMBRANE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have relatively high costs for treating wastewater, and have high requirements for operators, and it is difficult to guarantee the quality of effluent water.

Method used

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  • Battery diaphragm coating head cleaning wastewater treatment device and treatment method
  • Battery diaphragm coating head cleaning wastewater treatment device and treatment method
  • Battery diaphragm coating head cleaning wastewater treatment device and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]The used battery diaphragm coating head cleaning wastewater treatment device makes the battery diaphragm coating head cleaning wastewater flow through the gravity sedimentation tank 3, the coagulation sedimentation tank 7, the AO membrane biological treatment unit and the roll-type nanofiltration membrane unit 16 for treatment, so that The battery diaphragm coating head cleaning wastewater stays in the gravity settling tank for 8 hours, uses polyaluminum chloride PAC flocculant concentration of 100ppm, anionic polyacrylamide PAM coagulant concentration of 4ppm, and controls the speed of the agitator in the anaerobic tank to 85r / min, the DO value of the dissolved oxygen content in the anoxic pool 9 is 0.15mg / L, and the clear water treated by the roll-type nanofiltration membrane system unit 16 is sent to the reservoir for recycling, and the roll-type nanofiltration membrane system unit 16 is running The pressure is 0.65Mpa.

[0045] The above-mentioned embodiment 1 is us...

Embodiment 2

[0050] The used battery diaphragm coating head cleaning wastewater treatment device makes the battery diaphragm coating head cleaning wastewater flow through the gravity sedimentation tank 3, the coagulation sedimentation tank 7, the AO membrane biological treatment unit and the roll-type nanofiltration membrane unit 16 for treatment, so that The battery diaphragm coating head cleaning wastewater stays in the gravity settling tank for 12 hours. The concentration of polyaluminum chloride PAC flocculant is 100ppm, the concentration of anionic polyacrylamide PAM coagulant is 5ppm, and the rotation speed of the agitator in the anoxic tank is controlled to 100r. / min, the DO value of the dissolved oxygen content in the anoxic pool 9 is 0.2mg / L, and the clear water treated by the roll-type nanofiltration membrane system unit 16 is sent to the reservoir for recycling, and the roll-type nanofiltration membrane system unit 16 is running The pressure is 0.7Mpa.

[0051] The above-mentio...

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PUM

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Abstract

The invention provides a battery diaphragm coating head cleaning wastewater treatment device and treatment method. The treatment device comprises a gravity settling tank, a coagulation and precipitation tank, an AO membrane biological treatment unit and a rolling type nano-filtration membrane unit which are sequentially communicated through a connecting pipeline; the treatment method comprises thestep of obtaining clear water at an outlet of the rolling type nano-filtration membrane unit after battery diaphragm coating head cleaning wastewater sequentially flows through the gravity settling tank, the coagulation and precipitation tank, the AO membrane biological treatment unit and the rolling type nano-filtration membrane unit. According to the technical scheme of the invention, the wastewater is deeply treated by adopting sedimentation, coagulation and sedimentation, AO membrane biological reaction and rolling type nano-filtration system and other various treatment processes, so thatthe obtained clear water is better in water quality, the chemical oxygen demand (COD) is reduced, and nitrides in the wastewater are reduced, therefore, the battery diaphragm coating head cleaning wastewater is recycled.

Description

technical field [0001] The invention relates to the technical field of sewage treatment technology, in particular to a battery diaphragm coating head cleaning wastewater treatment device and treatment method. Background technique [0002] Diaphragm material is an important raw material in the production of battery industry. Since the localization of diaphragm materials, the domestic diaphragm material industry has developed rapidly. According to statistics, in 2011, Chinese enterprises realized a total of about 67 million square meters of diaphragm sales. 2 , the global market accounts for 14.63%, ranking third in the world. Lithium battery diaphragm materials are important battery supporting materials encouraged by the state. However, diaphragm materials need to be cleaned repeatedly with coating heads during the production process. This manufacturing process A large amount of waste water will be produced. [0003] The main components of battery separator coating head clea...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/34
Inventor 陈童方勇汪朝华曾亚
Owner VONTRON MEMBRANE TECH CO LTD
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