Study on control of micro-pollutants by BAC filtration

被引：0
|
作者：
Zhang, Z. H. [1 ]
Shao, L. [2 ]
机构：
[1] Tianjin Polytech Univ, Dept Environm Engn, Tianjin 300160, Peoples R China
[2] Tianjin Elect Power Res Inst, Tianjin 300022, Peoples R China
来源：
WATER SCIENCE AND TECHNOLOGY | 2008年 / 58卷 / 03期
关键词：
biological activated carbon filter; micro-pollutants; trihalomethane formation potential;
D O I：
10.2166/wst.2008.441
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The objective of this research was to evaluate removal efficiency of micro-pollutants in a BAC filter that followed ozonation for long term operation. The experimental results showed that after continuous operation for one year BAC filter still maintained a removal of 15 similar to 20% for CODMn and 20 similar to 30% of removal for UV254. Correlative analysis based on lots of data found that empty bed contact time (EBCT) instead of flow rate could obviously impact on removal effect of micro-pollutants in BAC filter. And the optimal relationship between EBCT and removal effect of micro-pollutants for BAC filter was logarithm. On the other hand, long term running of BAC filter proved that there was a good removal of chloroform formation potential, but the removal of brominated trihalomethane formation potential decline with further bromization, even there appeared to be formation of bromoform in BAC filter.
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页码：677 / 682
页数：6
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