Synergistic effect of the sequential use of UV irradiation and chlorine to disinfect reclaimed water
文献类型：期刊论文
| 作者 | Wang, Xiujuan ; Hu, Xuexiang ; Wang, Haibo ; Hu, Chun |
| 刊名 | Engineering; Environmental Sciences & Ecology; Water Resources
 |
| 出版日期 | 2012 |
| 卷号 | 46期号:4页码:1225-1232 |
| 关键词 | Chlorine disinfection Disinfection by product Photoreactivation Sequential disinfection UV disinfection Wastewater reclamation |
| ISSN号 | 0043-1354 |
| 中文摘要 | The effectiveness of UV and chlorination, used individually and sequentially, was investigated in killing pathogenic microorganisms and inhibiting the formation of disinfection by-products in two different municipal wastewaters for the source water of reclaimed water, which were from a microfilter (W1) and membrane bioreactor (W2) respectively. Heterotrophic plate count (HPC), total bacteria count (TBC), and total coliform (TC) were selected to evaluate the efficiency of different disinfection processes. UV inactivation of the three bacteria followed first-order kinetics in W1 wastewater, but in W2 wastewater, the UV dose response curve trailed beyond approximately 10 mJ/cm(2) UV. The higher number of particles in the W2 might have protected the bacteria against UV damage, as UV light alone was not effective in killing HPC in W2 wastewater with higher turbidity. However, chlorine was more effective in W2 than in W1 for the three bacteria inactivation owing to the greater formation of inorganic and organic chloramines in W1 wastewater. Complete inactivation of HPC in W1 wastewater required a chlorine dose higher than 5.5 mg/L, whereas 4.5 mg/L chlorine gave the equivalent result in W2 wastewater. In contrast, sequential UV and chlorine treatment produced a synergistic effect in both wastewater systems and was the most effective option for complete removal of all three bacteria. UV disinfection lowered the required chlorine dose in W1, but not in W2, because of the higher chlorine consumption in W2 wastewater. However, UV irradiation decreased total trihalomethane formation during chlorination in both wastewaters. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000300540000030 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8175]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Xiujuan,Hu, Xuexiang,Wang, Haibo,et al. Synergistic effect of the sequential use of UV irradiation and chlorine to disinfect reclaimed water[J]. Engineering; Environmental Sciences & Ecology; Water Resources,2012,46(4):1225-1232. |
| APA | Wang, Xiujuan,Hu, Xuexiang,Wang, Haibo,&Hu, Chun.(2012).Synergistic effect of the sequential use of UV irradiation and chlorine to disinfect reclaimed water.Engineering; Environmental Sciences & Ecology; Water Resources,46(4),1225-1232. |
| MLA | Wang, Xiujuan,et al."Synergistic effect of the sequential use of UV irradiation and chlorine to disinfect reclaimed water".Engineering; Environmental Sciences & Ecology; Water Resources 46.4(2012):1225-1232. |
入库方式： OAI收割
来源：生态环境研究中心
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