This paper introduces the formation of by-products in the typical process for sodium hydrosulphite and the waste treatments for the exhaust gas,waste water and waste residue in the route.

介绍了保险粉的生成及废水、废气、废渣的处理工艺,过一系列的循环综合利用,不仅实现放,还取得了较好的济效益。