Occurrence and removal of benzotriazole ultraviolet stabilizers in a wastewater treatment plant in China.
文献类型：期刊论文
| 作者 | Song, Shanjun ; Ruan, Ting ; Wang, Thanh ; Liu, Runzeng ; Jiang, Guibin |
| 刊名 | ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
 |
| 出版日期 | 2014 |
| 卷号 | 16期号:5页码:1076-1082 |
| ISSN号 | 2050-7887 |
| 中文摘要 | Benzotriazole ultraviolet stabilizers (BZT-UVs) have previously been found in sludge from wastewater treatment plants (WWTPs), which might be potential sources of BZT-UVs to the surrounding environment. In this work, the occurrence and fate of seven emerging 2-hydroxyphenyl substituted BZT-UVs were investigated in a Chinese WWTP. This group of hydrophobic BZT-UVs possess log K-ow values ranging from 4.31 to 7.67 which could be associated with their fate in WWTPs. Field samples including 24 h flow composites of influent, effluent and grab sludge samples from different treatment processes were collected and analyzed. Concentrations of BZT-UVs dissolved in aqueous-phases were in the range of 4.88 +/- 1.35 (UV-234) to 34.5 +/- 12.4 ng L-1 (UV-P) in the primary influent, while only UV-P and UV328 were detected in the final effluent at concentrations of 10.5 +/- 6.59 and 2.74 +/- 1.73 ng L-1, respectively. Considering the amount of target BZT-UVs adsorbed to total suspended solids (TSS), the daily mass flux in the primary influent of the WWTP ranged from 22.3 g day(-1) (UV-P, 7.99%) to 74.0 g day(-1) (UV-234, 26.5%). Total removal efficiency of the integrated treatment process ranged from 89.7% for UV-P to 99.7% for UV-234 suggesting nearly complete removal. Organic solid sedimentation in primary and secondary clarifiers was the dominant elimination route for BZT-UV analogues, which constituted 96.3% of the total removal efficiency. Advanced treatment (using ultraviolet disinfection) in this plant might further contribute to the high removal efficiencies (ranging from 19.6% to 77.3%). |
| WOS记录号 | WOS:000335003900015 |
| 公开日期 | 2015-03-24 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9412]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Song, Shanjun,Ruan, Ting,Wang, Thanh,et al. Occurrence and removal of benzotriazole ultraviolet stabilizers in a wastewater treatment plant in China.[J]. ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,2014,16(5):1076-1082. |
| APA | Song, Shanjun,Ruan, Ting,Wang, Thanh,Liu, Runzeng,&Jiang, Guibin.(2014).Occurrence and removal of benzotriazole ultraviolet stabilizers in a wastewater treatment plant in China..ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,16(5),1076-1082. |
| MLA | Song, Shanjun,et al."Occurrence and removal of benzotriazole ultraviolet stabilizers in a wastewater treatment plant in China.".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 16.5(2014):1076-1082. |
入库方式： OAI收割
来源：生态环境研究中心
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