| Treatment of Domestic Sewage by Two-Stage-Bio-Contact Oxidation Process |
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| 作者姓名： | LIXiang-dong FENGQi-yan LIUZhong-wei XIAOXin LINGuo-hua |
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| 作者单位： | SchoolofEnvironmentandSpatialInformatics,ChinaUniversityofMiningandTechnology,Xuzhou,Jiangsu,221008,China |
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| 摘 要： | Effects of hydraulic retention time (HRT) and gas volume on efficiency of wastewater treatment are discussed based on a simulation experiment in which the domestic swage was treated by the two-stage-bio-contact oxidation process. The result shows that the average CODcr, BOD5 , suspended solid (SS), and ammonia-nitrogen removal rate are 94.5 %, 93.2 %, 91.7 % and 46.9 %, respectively, under the conditions of a total air/water ratio of 5 : 1 , an air/water ratio of 3:1 for oxidation tank 1 and 2:1for oxidation tank 2 and a hydraulic retention time of 1 h for each stage. This method is suitable for domestic sewage treatment of residential community and small towns as well.
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| 关 键 词： | 污水处理 氧化 水力保持时间 含水率 空气比 |
Treatment of Domestic Sewage by Two-Stage-Bio-Contact Oxidation Process |
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| LIXiang-dong FENGQi-yan LIUZhong-wei XIAOXin LINGuo-hua.Treatment of Domestic Sewage by Two-Stage-Bio-Contact Oxidation Process[J].Journal of China University of Mining and Technology,2005,15(1):60-63. |
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| Authors: | LI Xiang-dong FENG Qi-yan LIU Zhong-wei XIAO Xin LIN Guo-hua |
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| Affiliation: | School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou , Jiangsu , 221008, China |
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| Abstract: | Effects of hydraulic retention time (HRT) and gas volume on efficiency of wastewater treatment are discussed based on a simulation experiment in which the domestic swage was treated by the two-stage-bio-contact oxidation process. The result shows that the average CODcr, BOD5, suspended solid (SS), and ammonia-nitrogen removal rate are 94.5 %, 93.2 %, 91.7 % and 46.9 %, respectively, under the conditions of a total air/water ratio of 5: 1 , an air/water ratio of 3:1 for oxidation tank 1 and 2:1for oxidation tank 2 and a hydraulic retention time of 1 h for each stage. This method is suitable for domestic sewage treatment of residential community and small towns as well. |
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| Keywords: | two-stage-bio-contact oxidation process domestic swage hydraulic retention time (HRT) air/water ratio |
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