文献类型：专利

英文题名：Processing oil refinery wastewater by mixing carbon dioxide gas and spent caustic wastewater, neutralizing and precipitating, and passing modified wastewater via anoxic biological treatment tank and aerobic biological treatment tank

作者：CHEN X;LI J;XU Y;WANG L;ZHANG Y;HE Y;SHI Z;TANG Q;YU Z;ZHUANG Y

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN105366887-A

申请日：2015-11-25

公开日：2016-03-02

语种：英文

收录：DERWENT

摘要：NOVELTY - Method for processing oil refinery wastewater involves (a) uniformly mixing carbon dioxide gas and spent caustic wastewater in a gas-liquid two-phase reactor, and performing neutralization and precipitate reaction to obtain modified spent caustic wastewater, and (b) sequentially treating the wastewater by passing through anoxic biological treatment tank and aerobic biological treatment tank, then passing through aerobic biological treatment tank, and supplementing substance as carbonate alkalinity and bicarbonate alkalinity. USE - The method is useful for processing oil refinery wastewater (claimed). ADVANTAGE - The wastewater treatment method is cost-effective.