摘要
采用自制的电吸附(EST)装置对达标排放的高含盐电镀废水进行预处理后再经反渗透(RO)膜分离,处理后出水的电导率为41.2μS/cm,COD为38 mg/L,p H为7.05,达到回用水标准。实验证明,与传统的UF(超滤)+RO脱盐工艺相比,采用"EST+RO"组合工艺处理后的回水的电导率、重金属离子含量更低。该方法耗能少,产水率高,能减少对膜的污染,有效降低运行成本。
The high-salt-content electroplating wastewater was pretreated by a home-made equipment of electrosorption technology （EST）, and then separated by reverse osmosis （RO）. The effluent features a conductivity of 41.2μS/cm, COD ca.38 mg/L and pH 7.05, meeting the reuse standard of reclaimed water. The experimental results showed that, compared with conventional ultrafiltration （UF） plus RO desalination process, the EST＋RO combined process decreases the conductivity and heavy metal content with less energy consumption, high water production rate and reduced membrane contamination, lowering the running cost effectively.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2017年第3期165-168,共4页
Electroplating & Finishing
基金
淮安市科技局重点研发计划(工业及信息化)(HAG2015057)
淮安信息职业技术学院青年基金专项(hxyq2015003)
关键词
电镀废水
电吸附
反渗透
脱盐
回用
electroplating wastewater
electrosorption technology
reverse osmosis
desalination
reuse
