Kinetics of municipal sewage degradation in EGSB and UASB reactors at 10 ℃ |
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引用本文: | 张选军,张亚雷,周雪飞,刘洪波,赵建夫.Kinetics of municipal sewage degradation in EGSB and UASB reactors at 10 ℃[J].西安交通大学学报(英文版),2008,20(1):66-70. |
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作者姓名: | 张选军 张亚雷 周雪飞 刘洪波 赵建夫 |
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作者单位: | [1]Key Laboratory of Yangtze Water Environment of Ministry of Education, Tongji University, Shanghai 200092 [2]State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China. |
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基金项目: | This work was supported by the Project of Science and Technology Commission of Shanghai Municipality (No. 042312076, 062R14089), the Key Technologies Research and Development Program (No. 2003BA808A17), the High Tech Research and Development (863) Program (No. 2004AA649310) |
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摘 要: | Kinetics of municipal sewage degradation in Expanded Granular Sludge Bed (EGSB) and Up-flow Anaerobic Sludge Blanket (UASB) reactors at 10℃ were investigated via continuous experimental equipments. The results indicated that the whole reaction process can be simulated by the first-order dynamic equation model. Dynamic parameters such as k, Vmax and Ks of UASB in hydrolysis acidification stage were 1.08 d^-1 , 2.8 d^-1 and 372 mg/L comparing to those of 1.18 d^-1 , 3.5 d^-1 and 112 mg/L in the methanogenesis stage respectively. The EGSB's k, Vmax and Ks were 2.91 d^-1 , 14.3 d^-1 and 470 mg/L in the hydrolysis acidification stage comparing to those of 1.68 d^-1, 6.6 d^-1 and 103 mg/L in the methanogenesis stage respectively. Comparison of k values of the two stages in UASB and EGSB indicates that hydrolysis acidification stage is the controlling step for the whole reaction process of UASB, while methanogenesis stage is the controlling step in EGSB. Compared with UASB, municipal sewage treatment by EGSB at 10 ℃ can reach the same effluent requirement with lower retention time due to its effluent recirculation.
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关 键 词: | EGSB 淤泥 UASB 生活污水 动力学 |
文章编号: | 1671-8267(2008)01-0066-05 |
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