絮凝-微纳气泡法处理采油废水  

Treatment of oily wastewater using coagulation/nano microbubble technology

作　　者：巩翠玉[1] 杜娜[2] 侯万国[1,2] 

机构地区：[1]山东大学环境研究院,济南250100 [2]山东大学国家胶体材料工程技术研究中心,济南250100

出　　处：《环境工程学报》2012年第5期1531-1535,共5页Chinese Journal of Environmental Engineering

基　　金：山东省自然科学基金资助项目(Z2008B08;2009ZRB01722);国家"973"重点基础研究发展计划项目(2004CB418504)

摘　　要：对采自胜利油田的采油废水,分别进行了聚硅硫酸铁(PFSS)絮凝法、微纳气泡法和絮凝-微纳气泡联合法处理,考察了处理过程对采油废水水质和所配制聚合物(部分水解聚丙烯酰胺)溶液粘度的影响。结果表明,均可有效降低废水的矿化度、油含量和悬浮物含量,明显提高用其配制的聚合物溶液的粘度;联合处理效果明显高于单独采用絮凝或微纳气泡处理的效果。所处理后的废水可有望代替淡水用于油田现场配制聚合物驱油体系,在消除油田污水环境污染的同时,可节约淡水资源。The oily wastewater from Shengli Oilfield was treated by polyferric silicate sulfate（PFSS） flocculation,nano-microbubble technology and coagulation/nano-microbubble combined technology.The effects of treatment process on the quality of oily wastewater and the viscosity of polymer solution（partially hydrolyzed polyacrylaminde） prepared from treated wastewater were investigated.It demonstrated that the salinity,concentration of oil and suspended substance were reduced effectively after these treatments,meanwhile,the viscosity of polymer solution increased significantly.In particular,the coagulation/nano-microbubble combined technology has more remarkable effect on the studied system than the other two methods.It should be noted that the treated wastewater is expected to replace the fresh water used for preparation of polymer flooding system.Herein,it is not only eliminating oil pollution in the water,but also saving freshwater resources.

关 键 词：絮凝 微纳气泡 采油废水 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]