| 两段错向流曝气生物滤池处理生活污水 |
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| 引用本文： | 司马卫平,董建威. 两段错向流曝气生物滤池处理生活污水[J]. 环境科学与技术, 2011, 34(5): 167-169. DOI: 10.3969/j.issn.1003-6504.2011.05.039 |
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| 作者姓名： | 司马卫平 董建威 |
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| 作者单位： | 1. 四川理工学院建筑工程学院,四川自贡,643000;重庆大学三峡库区生态环境教育部重点实验室,重庆,400045
2. 四川理工学院建筑工程学院,四川自贡,643000 |
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| 基金项目： | 自贡市科技局重点科技项目(09C02); 国家水体污染控制与治理科技重大专项(2008ZX07315-001) |
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| 摘 要： | 采用半柔性填料和酶促好氧填料的两段错向流曝气生物滤池(TUDBAF)处理生活污水,考察了试验启动阶段水力停留时间对SS、COD和NH3-N的去除效果的影响,并分析了反冲洗对BAF U段生物膜活性的影响。结果表明:在水力停留时间6.5~13.0 h条件下,SS和COD的去除率随水力停留时间的增加而增大,且其去除率分别达91.6%和83.6%以上;反应器对氨氮的去除主要集中在BAF U段,该段对氨氮的去除占总去除率的70%以上;BAFU段采用气水联合反冲洗过程中可以出水TSS浓度(708mg/L)作为该段反冲洗的终点。
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| 关 键 词： | 曝气生物滤池 污水处理 反冲洗 |
Two-sect Up and Down Flow Biological Aerated Filter for Domestic Wastewater Treatment |
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| SIMA Wei-ping,DONG Jian-wei. Two-sect Up and Down Flow Biological Aerated Filter for Domestic Wastewater Treatment[J]. Environmental Science and Technology, 2011, 34(5): 167-169. DOI: 10.3969/j.issn.1003-6504.2011.05.039 |
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| Authors: | SIMA Wei-ping DONG Jian-wei |
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| Affiliation: | SIMA Wei-ping1,2,DONG Jian-wei1(1.School of Architecture Engineering,Sichuan University of Science and Engineering,Zigong 643000,China,2.Key Laboratory of the Three Gorges Reservoir Region's Eco-environment of Ministry of Education,Chongqing University,Chongqing 400045,China) |
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| Abstract: | A two-sect up and down flow biological aerated filter(TUDBAF) with semi-soft media and enzyme-enhanced aerobiosis biofilling was used to treat domestic wastewater.Influence of HRT on SS,COD and NH3-N removal efficiency was investigated.Also the influence of backwash on the activity of biofilms was analyzed.Experimental results showed that under HRT of 6.5～13.0h,removal rates of SS and COD both increased with the increasing HRT and that both removal rates of which was above 91.6% and 83.6% respectively.It also indicated that removal of NH3-N mainly concentrated in BAF U and that of NH3-N in BAF U was over 70% of total removal rate.Effluent concentration of TSS of 708mg/L in BAF U using of air and water backwash process can serve as the end of backwash. |
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| Keywords: | biological aerated filter(BAF) wastewater treatment backwash |
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