Industrial-scale Test of Slightly Polluted Wastewater for Reuse in a Petroleum Refinery
A novel industrial-scale process combined circulating biological aerated filter (CBAF) and sand filter (SF) was used to treat the slightly polluted wastewater for reuse in a petroleum refinery. The process parameters, operation conditions and removal efficiencies of pollutants were investigated. The wastewater was treated by the CBAF process under optimal conditions: the air/water volume flow ratio of about 3:1, the hydraulic retention time (HRT) of 100 min and the backwashing cycle of every 2-3 days. The results show that the average removal efficiency of COD 62.6 ％, of oil pollutants 71.7％, of NH3-N 92.6 ％ and of SS 97.0 ％, respectively. And the average effluent concentration of COD, oil pollutants, NH3-N and SS is 14.4 mg·L-1, 0.75 mg·L-1, 0.49 mg·L-1 and 2.4 mg·L-1, respectively. The quality of the effluent can meet the requirements of industrial water reuse.
circulating biological aerated filter (CBAF) sand filter (SF) slightly polluted wastewater reuse petroleum refinery
XIE Wenyu TAN Guoqiang ZHONG Li
College of Chemical and Environmental Engineering, Maoming University, Maoming 525000, Guangdong, Ch China Petroleum & Chemical Corporation Maoming Branch, Maoming, 525011, Guangdong, China School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510641, G
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）