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.
引用
收藏
页码：677 / 682
页数：6
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