电石法聚氯乙烯生产行业的汞污染防治

结合我国电石法聚氯乙烯生产行业的发展现状，提出了采用低汞触媒替代高汞触媒以降低汞消耗、开发高效除汞器以提高脱汞效率、深度解吸废盐酸以解决汞转移问题、深度处理含汞废水以实现综合利用、优化工艺控制以降低汞触媒消耗、改善防护措施以减轻汞扩散等汞污染防治工作的要点。

Mercury Pollution Control in PVC Production by Calcium Carbide Process

According to the development status of polyvinyl chloride (PVC) production by calcium carbide process in China, the key points for mercury pollution prevention and control are put forward, such as: using low mercury catalyst instead of high mercury catalyst to reduce mercury consumption, developing high-efficiency mercury removal device to improve mercury removal efficiency, advanced desorbing waste hydrochloric acid to solve the problem of mercury transfer, advanced treating mercury-containing wastewater for comprehensive utilization,optimizing process conditions to reduce the consumption of mercury catalyst, improving control measures to reduce mercury diffusion, and so on.