| Characterization of Nanming River (southwestern China) sewerage-impacted pollution using an excitation-emission matrix and PARAFAC | |
Khan M. G. Mostofa; Fengchang Wu ; Cong-Qiang Liu; Wang L. Fang; Jie Yuan; Wang L. Ying; Li Wen; Mei Yi
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| 2010 | |
| 发表期刊 | Limnology
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| 卷号 | 11期号:3页码:217-231 |
| 摘要 | Nanming River, the largest urban river in Guizhou Province, southwestern China plateau, has been severely polluted for decades. This study characterizes the organic materials and their sources in the upstream and downstream waters by dissolved organic carbon (DOC), excitation emission matrix (EEM) spectroscopy, parallel factor (PARAFAC) analysis and photo-microbial experiments. DOC concentrations were low (47-120 mu M C) upstream and relatively high (146-462 mu M C) downstream. The PARAFAC studies on the sample EEM spectra demonstrated that the upstream dissolved organic matter (DOM) was mostly composed of one component that had a fulvic acid-like substance; downstream DOM was composed of two components with mixtures of tryptophan-like and fulvic acid-like substances. From the results of the sewerage drainage samples collected along the bank of the river, it is evident that both household detergent-like and protein-like or tryptophan-like substances are predominantly present, indicating that untreated sewerage effluents are the major sources of organic matter pollution in Nanming River. The degradation experiments conducted on river, sewerage drainage and commercial detergent samples demonstrated that the detergent-like and tryptophan-like substances are both photochemically and microbiologically more decomposable than fulvic acid-like materials under sunlight and dark incubations. These results suggest that the input of the untreated sewerage effluents along the streams is the major pollution source in Nanming River, and the fluorescent DOM was efficiently affected by both photochemical and microbial processes. |
| 学科领域 | 环境地球化学 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.gyig.ac.cn/handle/352002/4928 |
| 专题 | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 环境地球化学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Khan M. G. Mostofa,Fengchang Wu,Cong-Qiang Liu,et al. Characterization of Nanming River (southwestern China) sewerage-impacted pollution using an excitation-emission matrix and PARAFAC[J]. Limnology,2010,11(3):217-231. |
| APA | Khan M. G. Mostofa.,Fengchang Wu.,Cong-Qiang Liu.,Wang L. Fang.,Jie Yuan.,...&Mei Yi.(2010).Characterization of Nanming River (southwestern China) sewerage-impacted pollution using an excitation-emission matrix and PARAFAC.Limnology,11(3),217-231. |
| MLA | Khan M. G. Mostofa,et al."Characterization of Nanming River (southwestern China) sewerage-impacted pollution using an excitation-emission matrix and PARAFAC".Limnology 11.3(2010):217-231. |
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