| 海南火山岩滤料曝气生物滤池工艺优化研究 |
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| 引用本文： | 解清杰,黄晓龙,周清时,杜道林.海南火山岩滤料曝气生物滤池工艺优化研究[J].环境工程学报,2014,8(8):3283-3288. |
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| 作者姓名： | 解清杰 黄晓龙 周清时 杜道林 |
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| 作者单位： | 江苏大学环境与安全工程学院, 镇江 212013;江苏大学环境与安全工程学院, 镇江 212013;江苏大学环境与安全工程学院, 镇江 212013;江苏大学环境与安全工程学院, 镇江 212013 |
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| 基金项目： | 江苏省科技支撑资助项目（BE2011745）；“江苏高校水处理技术与材料协同创新中心”资助项目 |
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| 摘 要： | 本研究基于上向流曝气生物滤池污水处理系统,研究了该工艺不同气水比、不同水力停留时间、不同滤料高度层、反冲洗强度对污染物的处理效能的影响。结果表明,气水比为4∶1、水力停留时间2 h时,BAF出水中COD、NH+4-N和SS指标达到最佳;沿程污染物去除率随着滤料层高度的增加逐渐增大,当滤料高度大于1.6 m时趋于稳定,COD、NH+4-N和SS平均去除率分别达到80%、99%和80.3%。建议曝气生物滤池的反冲洗推荐程序为:先气冲(18 L/(m2·s)),单独气洗2~3 min;再气冲(18 L/(m2·s))加水冲(5 L/(m2·s)),联合反冲洗3~5 min;最后水冲(5 L/(m2·s)),漂洗5~8 min。
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| 关 键 词： | 火山岩滤料 BAF 工艺优化 |
Research on process paramenter optimization of biological aerated filter with Hainan volcanic rocks |
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| Xie Qingjie,Huang Xiaolong,Zhou Qingshi and Du Daolin.Research on process paramenter optimization of biological aerated filter with Hainan volcanic rocks[J].Techniques and Equipment for Environmental Pollution Control,2014,8(8):3283-3288. |
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| Authors: | Xie Qingjie Huang Xiaolong Zhou Qingshi and Du Daolin |
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| Institution: | School of the Environment and Security Engineering, Jiangsu University, Zhenjiang 212013, China;School of the Environment and Security Engineering, Jiangsu University, Zhenjiang 212013, China;School of the Environment and Security Engineering, Jiangsu University, Zhenjiang 212013, China;School of the Environment and Security Engineering, Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | This research was based on upward flow (biological aerated filter, BAF). The removal efficiency of pollutants under different air/water ratios, hydraulic retention times, filter material heights and backwash intensities were investigated. The results indicated that under the conditions of 4:1 of air/water ratio and 2 hours of hydraulic retention, the removal efficiency of COD, NH4+-N, and SS were the best. The degradation rate of contaminant increased gradually along with the increasing height of filter bed till it was higher than 1.6 m, and the average removal rates of COD, NH4+-N and SS were 80%, 99% and 80.3%, respectively. The backwashing procedure of BAF was suggested as follows: firstly, air scouring 2~3 minutes with flow rate of 18 L/(m2·s); secondly, air and water washing 3~5 min with air flow rate of 18 L/(m2·s) and water flow rate of 5 L/(m2·s); finally, water rinse for 3~8 min with water flow rate of 5 L/(m2·s). |
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| Keywords: | volcanic filter biological aerated filter process parameter optimization |
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