Battery diaphragm coating head cleaning waste water treatment device and method

The invention provides a battery diaphragm coating head cleaning waste water treatment device and method. The treatment device comprises a gravity sedimentation tank, a coagulation sedimentation tank,an AO film biological treatment unit and a coiled nanofiltration film unit which are sequentially communicated through connecting pipelines. The treatment method comprises the following steps: allowing battery diaphragm coating head cleaning waste water to sequentially flow through the gravity sedimentation tank, the coagulation sedimentation tank, the AO film biological treatment unit and the coiled nanofiltration film unit for treatment to obtain clear water at the outlet of the coiled nanofiltration film unit. By adopting the treatment device, the waste water is subjected to advanced treatment by adopting a plurality of treatment processes such as sedimentation, coagulation sedimentation, AO film biological reaction, a coiled nanofiltration system and the like, so that the clean waterquality is better, the che