Current Situation and Comprehensive Utilization of Synthetic Leather Wastewater

DMF rectification of synthetic wastewater has been widely used and some factories recycle production wastewater, but the overall recycling rate is still low.Other effective constituents in wastewater has not been recycled. According to the difference in quality and quantity of wastewater produced in each production processes, comprehensive utilization of wastewater can be carried out by recycling various effective ingredients, optimizing the production process, pretreatment or reusing of terminal treatment water. In the current production practice, the recovery of other useful solvents other than DMF is rarely verified by engineering application. The end treated water can only be used for some specific sections, and other comprehensive measures can be directly applied in production. With the increasingly strict environmental requirements and technology development, the research and development of ecological synthetic leather products, the recovery of various effective components in wastewater and wastewater reclamation will be the trend for water resources optimization of synthetic leather.