| Treatment of Slightly Polluted Wastewater in an Oil Refinery Using a Biological Aerated Filter Process |
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| 作者姓名： | XIE Wenyu ZHONG Li CHEN Jianjun |
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| 作者单位： | [1]College of Chemical and Environmental Engineering, Maoming University, Maoming 525000, Guangdong, China [2]School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China [3]School of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215123, Jiangsu, China |
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| 基金项目： | Supported by the Foundation of Science and Technology Project of Guangdong Province （2004B33301001 ） |
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| 摘 要： | The slightly polluted wastewater from oil refinery contains some COD, oil pollutants and suspended solids （SS）. A small-scale fixed film biological aerated filter （BAF） process was used to treat the wastewater. The influences of hydraulic retention time （HRT）, air/water volume flow ratio and backwashing cycle on treatment efficiencies were investigated. The wastewater was treated by the BAF process under optimal conditions： the HRT of 1.0 h, the air/water volume flow ratio of about 5 ： 1 and the backwashing cycle of every 4-7 days. The results showed that the average removal efficiency of COD, oil pollutants and SS was 84.5%, 94.0% and 83.4%, respectively. And the average effluent concentration of COD, oil pollutants and SS was 12.5, 0.27, 14.5 mg·L^-1, respectively. The experimental results demonstrated that the BAF process is a suitable and highly efficient method to treat the wastewater.
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| 关 键 词： | 生物滤波层 轻度污染污水 石油精炼厂 环境保护 |
| 文章编号： | 1007-1202（2007）06-1094-05 |
| 收稿时间： | 13 April 2007 |
| 修稿时间： | 2007-04-13 |
Treatment of slightly polluted wastewater in an oil refinery using a biological aerated filter process |
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| XIE Wenyu ZHONG Li CHEN Jianjun.Treatment of Slightly Polluted Wastewater in an Oil Refinery Using a Biological Aerated Filter Process[J].Wuhan University Journal of Natural Sciences,2007,12(6):1094-1098. |
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| Authors: | Xie Wenyu Zhong Li Chen Jianjun |
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| Institution: | (1) College of Chemical and Environmental Engineering, Maoming University, Maoming, 525000, Guangdong, China;(2) School of Chemical and Energy Engineering, South China University of Technology, Guangzhou, 510640, Guangdong, China;(3) School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 215123, Jiangsu, China |
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| Abstract: | The slightly polluted wastewater from oil refinery contains some COD, oil pollutants and suspended solids (SS). A small-scale
fixed film biological aerated filter (BAF) process was used to treat the wastewater. The influences of hydraulic retention
time (HRT), air/water volume flow ratio and backwashing cycle on treatment efficiencies were investigated. The wastewater
was treated by the BAF process under optimal conditions: the HRT of 1.0 h, the air/water volume flow ratio of about 5:1 and
the backwashing cycle of every 4–7 days. The results showed that the average removal efficiency of COD, oil pollutants and
SS was 84.5%, 94.0% and 83.4%, respectively. And the average effluent concentration of COD, oil pollutants and SS was 12.5,
0.27, 14.5 mg·L−1, respectively. The experimental results demonstrated that the BAF process is a suitable and highly efficient method to treat
the wastewater.
Biography: XIE Wenyu(1970–), female, Associate professor, research direction: wastewater treatment. |
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| Keywords: | biological aerated filter (BAF) slightly polluted wastewater oil refinery treatment efficiency |
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