Treatment method and treatment system for membrane production industrial wastewater

The invention discloses a treatment method of membrane production industrial wastewater and a treatment system of wastewater, DMF wastewater and MPD wastewater are shunted and pretreated respectively to improve biodegradability of the DMF wastewater and the MPD wastewater, and then biochemical treatment is carried out intensively. The method comprises the following steps: rectifying the DMF-containing wastewater to recover most of DMF, and then carrying out anaerobic reaction to preliminarily degrade the residual DMF in the wastewater into micromolecular organic matters which are easy to biodegrade; meanwhile, the pH value of the MPD wastewater and the adding speed of the bivalent copper ions are controlled by adopting a parallel flow feeding mode, so that the reaction system is maintained under the optimal process condition, the bivalent copper ions and MPD are quickly subjected to coordination polymerization reaction to remove MPD, and the method has the advantages of high reaction speed, high removal effic