摘要
压裂作业产生的压裂返排液对环境有极大的危害。文章针对某油田压裂返排液浓度高、难降解的特点,找到一套切实可行的"混凝—氧化"处理方案,通过实验确定最佳处理条件,最终出水的COD降到90.7mg/L,达到DB 21/1627—2008《辽宁省污水综合排放标准》二级标准。
Fracturing isone of the main measures to increase production of oil and gas,but fracturing fluid generates a great harm to the environment.Since the characteristics of fracturing fluid are high concentration and hard degradation,the paper discusses a coagulation-oxidation treatment scheme and optimizes the process conditions to reduce the final effluent COD to 90.7 mg/L,which reaches the local emission secondary standard.
出处
《油气田环境保护》
CAS
2013年第6期28-31,86,共4页
Environmental Protection of Oil & Gas Fields
关键词
压裂返排液
混凝一氧化
混凝剂
fracturing fluid
coagulation-oxidation
coagulant
