| Removal and transformation of organic matter during soil-aquifer treatmen |
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| 作者姓名： | ZHAO Qing-liang XUE Shuang YOU Shi-jie WANG Li-na |
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| 作者单位： | School of Municipal ＆ Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| 基金项目： | Project （No. 2004CB418505） supported by the National Basic Research Program （973） of China |
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| 摘 要： | This study investigated the removal and transformation of organic matter through laboratory-scale soil-aquifer treatment （SAT） soil columns over a 110-day period. Reductions in total organic carbon （TOC）, dissolved organic carbon （DOC）, biodegradable dissolved organic carbon （BDOC）, nonbiodegradable dissolved organic carbon （NBDOC） and absorbance of ultraviolet light at 254 nm （UV-254） averaged 71.46%, 68.05%, 99.31%, 33.27% and 38.96% across the soil columns, respectively. DOC/TOC ratios increased slightly with depth while BDOC/DOC ratios showed a converse trend. DOC exiting the soil-column system contained only a very small biodegradable fraction. SAT decreased the concentration of DOC present in feed water but increased its aromaticity, as indicated by specific ultraviolet light absorbance （SUVA）, which increased by 50%-115% across the soil columns, indicating preferential removal of non-aromatic DOC during SAT. Overall, laboratory-scale SAT reduced trihalomethane formation potential （THMFP）, although specific THMFP increased. THMFP reduction was dominated by removal in chloroform. All samples exhibited a common general relationship with respect to weight： chloroform〉dichlorobromomethane 〉dibromochloromethane〉bromoform.
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| 关 键 词： | 土壤含水层处理 有机物去除 有机物转化 水质评价 |
| 收稿时间： | 2006-12-19 |
| 修稿时间： | 2007-01-05 |
Removal and transformation of organic matter during soil-aquifer treatmen |
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| ZHAO Qing-liang XUE Shuang YOU Shi-jie WANG Li-na.Removal and transformation of organic matter during soil-aquifer treatmen[J].Journal of Zhejiang University Science,2007,8(5):712-718. |
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