纳滤膜处理酸洗废液新工艺

New disposition technology of waste acid liquor by nanofiltration

用纳滤膜法处理钢厂酸洗废液 ,对影响纳滤过程的因素 ,如操作压力、操作时间和废酸液流量进行分析 .此方法既回收硫酸亚铁 ,母液又返回酸洗工序循环使用 .回收了资源 ,保护了环境 .

This paper proposes a new disposition technology of waste acid liquor by the nanofiltration(NF) membrane,and analyses the infuluence of pressure,temperature and flow on the NF process. It can recover FeSO 4, and circulate mother liquor(20%H 2SO 4),hence save source and protect environment.