| Optimizing Conditions of Enhancing Granule Sludge Concentration and Performance |
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| 作者姓名： | LI Huili LUE Bingnan WANG Dan LIU Xinyue |
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| 作者单位： | School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbinl50090, Heilongjiang, China |
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| 基金项目： | Supported by Key Project of the Tenth Five-Year Plan of the Ministry of Science and Technology of China （02-2-2） |
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| 摘 要： | An expanded granular sludge bed （EGSB） reactor was adopted to study the influence factors and rule of enhancing granular sludge concentration and performance. The experiment was performed at 33 ℃, pH 6.0-8.0 with continuous flow by adding proper quantity of nutritional trace elements. The results show that SLR was the key of steady operation of EGSB reactor. The increment of the granular sludge was influenced by volume loading rate （VLR）, liquid up-flow velocity and sludge loading rate （SLR）. Concentration of granular sludge increased rapidly when liquid up-flow velocity was over 0.94 m · h^-1 with SLR being at 1.0-2.0 d ^-1. With the propriety parameters： liquid up-flow velocity 2.52 m · h^-1, SLR 1.0-2.2 d^-1 and VLR 8.2-13.1 kg · m ^3 · d^-1, 23 days＇ continuous operation resulted in an increment by over 80% of granular sludge concentration in the EGSB reactor, plus good granular sludge property.
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| 关 键 词： | 颗粒污泥 浓度 性能改进 优化条件 |
| 文章编号： | 1007-1202（2007）03-0548-05 |
| 收稿时间： | 19 July 2006 |
| 修稿时间： | 2006-07-19 |
Optimizing conditions of enhancing granule sludge concentration and performance |
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| LI Huili LUE Bingnan WANG Dan LIU Xinyue.Optimizing Conditions of Enhancing Granule Sludge Concentration and Performance[J].Wuhan University Journal of Natural Sciences,2007,12(3):548-552. |
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| Authors: | Li Huili Lü Bingnan Wang Dan Liu Xinyue |
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| Institution: | (1) School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, China |
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| Abstract: | An expanded granular sludge bed (EGSB) reactor was adopted to study the influence factors and rule of enhancing granular sludge
concentration and performance. The experiment was performed at 33 °C, pH 6.0–8.0 with continuous flow by adding proper quantity
of nutritional trace elements. The results show that SLR was the key of steady operation of EGSB reactor. The increment of
the granular sludge was influenced by volume loading rate (VLR), liquid up-flow velocity and sludge loading rate (SLR). Concentration
of granular sludge increased rapidly when liquid up-flow velocity was over 0.94 m · h−1 with SLR being at 1.0–2.0 d−1. With the propriety parameters: liquid up-flow velocity 2.52 m · h−1, SLR 1.0–2.2 d−1 and VLR 8.2–13.1 kg · m−3 · d−1, 23 days’ continuous operation resulted in an increment by over 80% of granular sludge concentration in the EGSB reactor,
plus good granular sludge property.
Biography: LI Huili (1970–), female, Ph.D. candidate, research direction: controlling water pollution. |
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| Keywords: | expanded granular sludge bed (EGSB) reactor granular sludge volume loading rate (VLR) Liquid up-flow velocity sludge loading rate (SLR) |
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