化学混凝法处理采油废水的研究  

Study on the Treatment of Oilfield Wastewater by Coagulation Process

作　　者：刘羽[1] 史小梅[1] 韩涛[1] 王静[1] 

机构地区：[1]延安大学能源与环境工程学院,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2013年第3期92-94,共3页Journal of Yan'an University：Natural Science Edition

基　　金：延安大学专项科研基金项目(YD2010-28);延安大学STITP项目(D2011-35)

摘　　要：采用化学混凝法对陕北某原油处理厂采油废水进行处理。选用三氯化铁作为混凝剂,研究了FeCl3投加量、温度、pH等因素对废水COD去除率的影响,采用正交实验方法确定了最佳处理条件为:常温条件,废水的pH为8,FeCl3浓度为25 mg/L,PAM浓度为0.75 mg/L,250 r/min的搅拌速度下,快速搅拌2 min,30 r/min的搅拌速度下,慢速搅拌5 min,静置30 min。此时,废水COD由3815 mg/L降到1034 mg/L,去除率为72.9%。The chemical coagulation method has been used to deal with the oilfield wastewater from a crude oil pro- cessing plant in Northern Shaanxi. FeC13 has been selected as a coagulant, FeC13 adding quantity, temperature, pH and other factors effect on the removal of COD are investigated, the orthogonal experimental method has been to de- termine the operating conditions of coagulation are as following： the condition of normal temperature, pH = 8, FeC13 25 mg/L, PAM 0.75 mg,/L high speed agitation of 250 r/rain of which time is 2 rain ;low speed agitation of 30 r/ min with time is 5 min, standing for 30 min. At this time, COD of the wastewater is reduced from 3815 mg/L to 1034 mg/L, the removal rate of COD is 72.9%.

关 键 词：采油废水 化学混凝 COD去除率 

分 类 号：X703[环境科学与工程—环境工程]