摘要
用四种常用的氧化剂:高锰酸钾、漂白粉、NaClO和H2O2/Fe2+对大港油田港深11井酸化废水进行了处理。考察了氧化剂的投加量、氧化时间和pH值对酸化废水色度和COD去除率的影响。实验结果表明,在最佳条件下,H2O2/Fe2+对酸化废水的色度和COD的去除率最高;用高锰酸钾处理废水,其COD去除率较高,但脱色效果差;而漂白粉和NaClO的脱色率较高,但其氧化能力有限。建议油田用氧化法处理废水时应采用H2O2/Fe2+催化氧化体系。
The acid wastewater of Gangshen-11 Well in Dagang Oilfield was treated with four kinds of oxidizing agents such as potassium permanganate (KMnO4), bleaching powder, NaClO and H2O2/Fe2+. The effects of adding quantity, oxidizing time and pH value on decolorization and chemical oxygen demand (COD) degradation were investigated. The results show that under the appropriate operation conditions, H2O2/Fe2+ can decrease colority and COD of acid sewage drastically, KMnO4 can reduce COD and increase colority. Bleaching powder and NaClO can limite oxidation of wastewater. It is suggested that H2O2/Fe2+ can be used to oxidize wastewater.
出处
《油气田环境保护》
CAS
2003年第2期5-7,共3页
Environmental Protection of Oil & Gas Fields
基金
中国石油天然气集团公司"九五"科技攻关项目(部970607)部分研究成果
