| 水力停留时间对膜生物反应器复合工艺污水处理特性的影响 |
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| 引用本文： | 袁丽梅,张传义,张雁秋,奚旦立,高彦林.水力停留时间对膜生物反应器复合工艺污水处理特性的影响[J].环境污染与防治,2007,29(5):363-366. |
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| 作者姓名： | 袁丽梅 张传义 张雁秋 奚旦立 高彦林 |
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| 作者单位： | 1. 东华大学环境科学与工程学院,上海,201620
2. 中国矿业大学环境与测绘学院,江苏,徐州,221008 |
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| 基金项目： | 中国矿业大学校科研和教改项目 |
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| 摘 要： | 开发了厌氧-多级好氧/缺氧-膜生物反应器复合工艺,在不同水力停留时间(HRT)下,考察了系统对污染物去除效果及其膜污染的特性.结果表明,在试验选定的HRT范围内,系统对TN和TP的去除率随着HRT的降低而升高,当HRT为8.70、6.96、4.97 h时,系统对TN和TP的平均去除率分别为73.15%、79.76%、81.98%和67.79%、80.99%、92.16%.但是,较低HRT条件下膜通量较高,会加剧膜污染进程.解决这一问题的措施是增加膜组件个数,从而在不提高膜通量的情况下使系统保持较低的HRT,保证系统高效稳定的污染物去除效果.
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| 关 键 词： | 膜生物反应器 分点进水 脱氮除磷 水力停留时间 膜污染 |
| 修稿时间： | 2007-01-22 |
Effect of HRT on the performance of a step-feed hybrid MBR process treating synthetic domestic wastewater |
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| Yuan Limei,Zhang Chuanyi,Zhang Yanqiu,Xi Danli,Gao Yanlin.Effect of HRT on the performance of a step-feed hybrid MBR process treating synthetic domestic wastewater[J].Environmental Pollution & Control,2007,29(5):363-366. |
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| Authors: | Yuan Limei Zhang Chuanyi Zhang Yanqiu Xi Danli Gao Yanlin |
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| Institution: | 1. School of Environmental Science and Engineering, Donghua University, Shanghai 201620; 2. School of Environment and Spatial In f ormatics , China University of Mining and Technology, Xuzhou Jiangsu 221008 |
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| Abstract: | An innovative process step-feed A-(O/A)n-MBR (Anaerobic-(Oxic/Anoxic)n-Membrane Bioreactor) was developed to treat synthetic domestic wastewater. The characteristics of nutrient removal and membrane fouling in A-(O/A)n-MBR system was investigated at different hydraulic retention time(HRT). The results showed that, under the conditions of different HRT imposed, the removal efficiencies of total nitrogen (TN) and total phosphorus (TP) increased with the decreasing of HRT. While the HRT was at 8.70 h, 6.96 h and 4.97 h, the removal efficiencies of TN and TP were 73.15%,79.76%,81.98% and 67.79%,80.99%,92.16%, respectively. However, the short HRT and high flux condition resulted in the acceleration of membrane fouling. One feasible idea to solve this issue was adding more modules of membranes to meet the short HRT conditions without increasing the membrane flux. |
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| Keywords: | Membrane bioreactor Step feed Nitrogen and phosphorus removal Hydraulic retention time (HRT) Membrane fouling |
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