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| 微污染饮用水生物过滤影响因素的研究 | |
| 引用本文： | 余健,曾光明,谢水波,何元春,张长,任文辉.微污染饮用水生物过滤影响因素的研究[J].环境科学与技术,2003,26(5):1-3. |
| 作者姓名： | 余健 曾光明 谢水波 何元春 张长 任文辉 |
| 作者单位： | 1. 湖南大学土木工程学院,长沙,410082 2. 湖南大学环境科学与工程系,长沙,410082 3. 南华大学建筑工程与资源环境学院,衡阳,421001 |
| 基金项目： | 国家自然科学基金资助项目 ( 70 1 71 0 55) |
| 摘 要： | 通过试验探讨了过滤介质、空床接触时间、水温和反冲洗方式对生物过滤去除有机物的影响。试验结果表明 :活性炭、石英砂组成的双层滤料生物滤池对高锰酸盐指数、UV2 5 4的去除效果比无烟煤、石英砂组成的双层滤料滤池和单层石英砂滤料滤池好 ;在一定的范围内 ,随着接触时间或水温的增加 ,各滤柱对高锰酸盐指数的去除率增加 ;加氯水反冲洗方式对生物滤池去除高锰酸盐指数、UV2 5 4的影响比未加氯水反冲洗方式大 |
| 关 键 词： | 微污染饮用水 有机物 生物过滤 影响因素 |
| 文章编号： | 1003-6504(2003)05-0001-03 |
| 修稿时间： | 2002年9月20日 |
Factors Affecting Biological Filtration for Micro-polluted Water-supply |
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| YU Jian,ZENG Guang-ming,XIE Shui-bo,HE Yuan-chun,ZHANG Chang,REN Wen-hui.Factors Affecting Biological Filtration for Micro-polluted Water-supply[J].Environmental Science and Technology,2003,26(5):1-3. | |
| Authors: | YU Jian ZENG Guang-ming XIE Shui-bo HE Yuan-chun ZHANG Chang REN Wen-hui |
| Institution: | YU Jian~1,ZENG Guang-ming~2,XIE Shui-bo~3,HE Yuan-chun~1,ZHANG Chang~2,REN Wen-hui~1 |
| Abstract: | Filter medium, empty bed contact time (EBCT), water temperature and back-flush mode, etc. are commonly considered as main factors affecting operation of a biological filter for treating micro-polluted water. Bench-scale experiment in a water-works on bank of the Xiangjiang River was conducted for evaluation of bio-filters. The experimental results showed that the dual-layer filter consisting of activated carbon and silicon sand was better than that of anthracite and silicon sand in term of COD_(cr) and UV_(254) removals. With the increase of contact time and temperature, performance (COD_(cr) removal) of the bio-filer became better. |
| Keywords: | micro-polluted water organics biological filtration affecting factor |
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