Abstract:
For iron and steel enterprises,the treatment of oil-bearing wastewater from cold rolling has great significance to reducing the amount of effluent discharge and the dosage of fresh water needed,and improving the cyclic utilization water of wastewater.The commonly used treatment technologies of oil-bearing wastewater from cold rolling in China and abroad,such as gravity separation,air flotation,flocculation,adsorption,membrane separation,biological method and membrane bioreactors are introduced.In addition,the treatment process and present status of oil-bearing wastewater from cold rolling are described.Furthermore,the developing trend of oil-bearing wastewater from cold rolling is forecast.
Key words:
oil-bearing wastewater from cold rolling,
air flotation,
adsorption,
membrane separation
摘要：
冷轧含油废水的处理,对于钢铁企业减少污水排放量和新水用量、提高废水循环利用率具有重要的意义。介绍了国内外常用的冷轧含油废水处理技术,如重力分离法、气浮法、絮凝法、吸附法、膜分离法、生物法、膜生物反应器等,描述了冷轧含油废水处理工艺与现状,展望了冷轧含油废水处理的发展趋势。
关键词:
冷轧含油废水,
气浮,
吸附,
膜分离
CLC Number:
Qu Yuling, Mao Yanli, Zhang Dongli, Wang Zhuo. Treatment process and technological status of oil-bearing wastewater from cold rolling[J]. INDUSTRIAL WATER TREATMENT, 2012, 32(10): 9-12.
曲余玲, 毛艳丽, 张东丽, 王涿. 冷轧含油废水处理技术及工艺现状[J]. 工业水处理, 2012, 32(10): 9-12.