摘要
针对铅锌冶炼废水外排水含盐量高、结垢倾向严重并含有重金属的水质特点,采用纳滤工艺对其进行回用处理,纳滤进水压力为0.6～0.75 MPa,系统回收率为75%,脱盐率为92%～95%,产水水质优于循环水水质标准可直接回用于厂区工业用水系统。浓水采用强化混凝工艺处理可达标外排。介绍了纳滤工艺及其预处理工艺,浓水处理工艺,并对其运行情况及存在问题进行了总结分析。
The NF process treating Lead and Zinc industrial wastewater which including high salty and tendency scale of formation for reusing was studied. The pressure of former-treatment water of NF is about 0.6 -0.75 MPa and salty treatment of the wastewater is 92% -95%.The quality of post-treatment water better than water quality standards for recycled water can be reuse to produce. Waste of NF can be treated by enhanced coagulation process.
出处
《水处理技术》
CAS
CSCD
北大核心
2010年第1期110-113,共4页
Technology of Water Treatment
关键词
纳滤
铅锌冶炼工业废水
废水回用
浓水处理
nanofiltration
lead and zinc smelting industrial
wastewater
wastewater reuse
