文献类型：期刊文献

英文题名：Media coalescence filtration as a novel method for pretreatment of refinery wastewater

作者：Li, Yudong[1];Lu, Hao[1];Liu, Yiqian[1];Dai, Pinyi[1];Zhu, Huatong[1];Zhang, Bei[1];Peng, Shaowei[1];Fan, Yingheng[1];Yang, Qiang[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：11

期号：1

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20225213291209);WOS:【SCI-EXPANDED(收录号:WOS:000901191100004)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant NO. 52025103) , the National Key Research and Development Project (Grant NO. 2019YFA0705800) .

语种：英文

外文关键词：Refinery wastewater; Petroleum and suspended solids; Coalescence filtration; Physical pretreatment

摘要：Refinery wastewater is not only large in volume but also complex in composition. It requires multi-stage treatment to achieve discharge or reuse targets. Pretreatment plays an important role as a front-end treat-ment. In conventional pretreatment technologies, petroleum removal and suspension removal are carried out through inclined plate settlement combined with two-stage air flotation. This poses problems such as high energy and chemical consumption and large outputs of hazardous waste. In this study, a short-process physical pre-treatment technology is designed in conjunction with combined fiber coalescer (CFC) and granular media filter (GMF). The results of the pilot test show that with no added chemicals, the treated refinery wastewater is clear and translucent, and the petroleum and suspended solids content could be reduced to less than 20 mg/L, which falls within the acceptable range of the biochemical influent index. This process could greatly reduce the gen-eration and emission of scum and volatile organic compounds (VOCs) and provides a new technique for the low -carbon pretreatment of refinery wastewater.