Complex odor control based on ozonation/GAC advanced treatment: optimization and application in one full-scale water treatment plant
文献类型：期刊论文
| 作者 | Xia, Ping; Zhang, Shuangyi; Yu, Jianwei; Ye, Hui; Zhang, Dong; Jiang, Lei; Wang, Zheng; Yin, Daqiang |
| 刊名 | ENVIRONMENTAL SCIENCES EUROPE
 |
| 出版日期 | 2020-03-25 |
| 卷号 | 32期号:1页码:1-17 |
| 关键词 | Odor Ozonation Granular activated carbon 2-Methylisoborneol Bis(2-chloroisopropyl) ether |
| ISSN号 | 2190-4707 |
| 英文摘要 | Background Taste and odor problem in drinking water is one major concern for consumers and water supply. Exploring the odor characteristics and the major odor causing compounds in the source water is the base for odor control in drinking water treatment plant (WTP). In this study, focusing on a newly constructed reservoir with Huangpu River as the source water, the occurrence of typical odorants and their variations were first identified. Correspondingly, the removal behavior in an ozone/GAC advanced treatment process was investigated. Results The results indicated that 2-methylisoborneol (2-MIB), geosmin (GSM), and bis (2-chloroisopropyl) ether (BCIE) have major contribution to the musty/earthy and chemical/septic odors in the source water, respectively. Pre-ozonation alone (1 mg L-1) showed limited removal for 2-MIB and BCIE, at less than 30% and 20%, respectively, while combining with coagulation, sedimentation, and sand filtration, the removals were improved to higher than 50%. After post-ozonation, the desired removal was achieved at a 1.5 mg L-1 dosage with all the odorants decreased below the corresponding odor threshold concentrations (OTCs) in the effluents. Furthermore, at a 1 mg L-1 post-ozone addition, by combining with subsequent GAC process, the odor problem was solved as well. Conclusion To resolve the odor problem in the drinking water, the concentrations of the odorants at less than their OTCs need to be achieved. As 2-MIB and BCIE have low reactivity towards direct ozonation, a subsequent GAC is needed with a moderate dosage of post-ozonation (1 mg L-1). Thus, for the odor problem in the source water, the suggested operation is: 1 mg L-1 of pre-ozonation in combination with coagulation, sedimentation, and sand filtration, followed by a 1 mg L-1 dosage of post-ozonation and finished by a GAC process. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45257]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Xia, Ping,Zhang, Shuangyi,Yu, Jianwei,et al. Complex odor control based on ozonation/GAC advanced treatment: optimization and application in one full-scale water treatment plant[J]. ENVIRONMENTAL SCIENCES EUROPE,2020,32(1):1-17. |
| APA | Xia, Ping.,Zhang, Shuangyi.,Yu, Jianwei.,Ye, Hui.,Zhang, Dong.,...&Yin, Daqiang.(2020).Complex odor control based on ozonation/GAC advanced treatment: optimization and application in one full-scale water treatment plant.ENVIRONMENTAL SCIENCES EUROPE,32(1),1-17. |
| MLA | Xia, Ping,et al."Complex odor control based on ozonation/GAC advanced treatment: optimization and application in one full-scale water treatment plant".ENVIRONMENTAL SCIENCES EUROPE 32.1(2020):1-17. |
入库方式： OAI收割
来源：生态环境研究中心
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