| 低温条件下生物陶粒反应器运行特性研究 |
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| 引用本文： | 桑军强,王占生.低温条件下生物陶粒反应器运行特性研究[J].环境科学,2003,24(2):112-115. |
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| 作者姓名： | 桑军强 王占生 |
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| 作者单位： | 1. 清华大学深圳研究生院环境工程与管理研究中心,深圳,518057
2. 清华大学环境科学与工程系,100084 |
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| 基金项目： | 科技部、水利部重大科技项目;北京市"二四八"重大科技项目(9550610400-05-03). |
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| 摘 要： | 针对官厅水库下游三家店水库水源进行生物陶粒预处理的现场试验,研究低温条件下生物陶粒反应器的运行效果及其特性.结果表明:当水温从10℃下降到0.5℃时,生物陶粒反应器对CODMn的去除率从20%左右下降到6%左右,氨氮的去除率从90%下降到65%.随温度降低生物陶粒反应器去除污染物的效果下降主要是由于微生物活性随温度的降低而下降造成的,陶粒表面的微生物量随温度的降低而减少,但是受影响的程度比活性小得多.陶粒表面的微生物活性与微生物量沿水流方向呈明显的下降趋势.
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| 关 键 词： | 生物陶粒 生物预处理 微污染水源水 耗氧速率 微生物量 |
| 文章编号： | 0250-3301(2003)02-04-0112 |
| 收稿时间： | 2002/4/26 0:00:00 |
| 修稿时间： | 2002年4月26日 |
Performance of Bio-ceramic Reactor at Low Temperature |
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| Sang Junqiang and Wang Zhansheng.Performance of Bio-ceramic Reactor at Low Temperature[J].Chinese Journal of Environmental Science,2003,24(2):112-115. |
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| Authors: | Sang Junqiang and Wang Zhansheng |
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| Institution: | Research Center for Environmental Engineering & Management, Shenzhen Graduate School, Tsinghua University, Shenzhen 518057, China. |
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| Abstract: | A bio-ceramic reactor for slightly polluted source water from Guanting Reservoir in Beijing was conducted at low temperature. It was shown that the removal rate of CODMn and NH4(+)-N decreased from 20% to 6%, 90% to 65% respectively when the temperature fell from 10 degrees C to 0.5 degree C. The main factor affecting the efficiency of bio-ceramic reactor was the microbial activity which decreased more than the biomass when the temperature dropped. Microbial activity and biomass in the bio-ceramic reactor were in a regular pattern of gradient distribution from the lower to the upper along the direction of raw water flow. |
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| Keywords: | bio ceramic reactor biological pretreatment source water oxygen uptake rate biomass |
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