| Zeolite powder addition to improve the performance of submerged gravitation-filtration membrane bioreactor |
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| 作者姓名： | HE Sheng-bing XUE Gang KONG Hai-nan |
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| 作者单位： | [1]School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China [2]School of Environmental Science and Engineering.Donghua University, Shanghai 200051, China |
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| 摘 要： | In this study, the effect of zeolite powder addition on submerged membrane bioreactor （SMBR） on membrane permeability, and the removals for COD, NH3-N, TN were investigated. Through the parallel operation of control and test systems, it was found that the zeolite powder addition could alleviate the ultra-filtration membrane fouling and enhance the membrane permeability. On the basis of experimental investigations, a concept of ＂protection coating layer＂ was proposed to illustrate the phenomenon of UF membrane fouling. In addition, the removal for COD in test system was more stable, a little higher compared to the control system. Due to the combination of nitrification and ion exchange, a more excellent removal for NH3-N in test system was obtained regardless of influent NH3-N loading rate. It was also found that a mean 25% higher TN removal took place in the test system, and ion exchange and simultaneous nitrification and de-nitrification were analyzed to be main factors. During the stable operation period, the SOURs of test zeolite powder added sludge and control activated sludge were measured to be 75 mgO2/（gMLVSS, h） and 24 mgO2/（gMLVSS, h） respectively, it meant that the zeolite powder addition could enhance the microorganism activity significantly.
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| 关 键 词： | 沸石 生物反应器 微生物 生物活性 废水处理 |
| 文章编号： | 1001-0742（2006）02-0242-06 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-07-11 |
Zeolite powder addition to improve the performance of submerged gravitation-filtration membrane bioreactor |
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| HE Sheng-bing,XUE Gang,KONG Hai-nan.Zeolite powder addition to improve the performance of submerged gravitation-filtration membrane bioreactor[J].Journal of Environmental Sciences,2006,18(2):242-247. |
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| Authors: | HE Sheng-bing XUE Gang and KONG Hai-nan |
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| Institution: | 1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
2. School of Environmental Science and Engineering, Donghua University, Shanghai 200051, China |
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| Abstract: | In this study, the effect of zeolite powder addition on submerged membrane bioreactor (SMBR) on membrane permeability,and the removals for COD, NH3-N, TN were investigated. Through the parallel operation of control and test systems, it was foun |
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| Keywords: | submerged gravitation-filtration membrane bioreactor performance zeolite powder membrane fouling microorganism activity |
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