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Variation and mitigation of musty, septic, chemical, grassy, fishy odors and corresponding odorants in a full-scale drinking water treatment plant with advanced treatments
Guo, Qingyuan; Zhang, Xiaohong; Li, Xuan; Chen, Tianming; Yang, Bairen; Ding, Cheng; Wang, Chunmiao; Pan, Mei; Ma, Weixing; Yu, Jianwei
2021-04
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume269Pages:-
AbstractOzone and biological activated carbon (BAC) are known to be effective at removing odors in drinking water. However, the specific variations in complex odors and odorants along the course of advanced treatments in full-scale drinking water treatment plants (DWTP) have remained unclear. In this paper, the migration of odors and odorants through pre-ozonation, sedimentation, post-ozonation, and BAC treatment processes were studied from January to December 2019 in a DWTP. The results indicated that septic, musty, and chemical odors with intensities of 6-6.7, 6-7.5, 4-5 could be removed by both ozonation and BAC, while grassy, fishy odors with intensities of 3.3-4.8, 2.3-5.8 could not be removed until the BAC step. Twenty-four odorants identified in raw water were classified as musty (2-methylisoborneol, geosmin), chemical (e.g. indane, eucalyptol), septic (e.g. dimethyl disulfide, pentanethiol), fishy (2,4-decadienal) and grassy (nonanal, decanal) odor compounds. It is noteworthy that eleven additional odorants were produced after ozonation; in addition, the concentrations of fishy and grassy odorants were increased after ozonation, and the concentrations of musty, septic, fishy, and grassy odorants were increased after sedimentation, suggesting that sedimentation and ozonation should be carefully managed. BAC was the most effective at removing the above odorants simultaneously. This study would be helpful for providing more insights into the migration of odorants along treatment processes and understanding the mitigation of odors in DWTPs using raw waters with complex odors. (C) 2020 Elsevier Ltd. All rights reserved.
Department中国科学院饮用水科学与技术重点实验室
KeywordComprehensive evaluation Complex odors Ozonation Biological activated carbon (BAC) Produced odorants
WOS Research AreaEnvironmental Sciences
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46277
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Yancheng Inst Technol, Coll Environm Sci & Engn, Yancheng 224051, Jiangsu, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Beijing Enterprises Water Grp Ltd, BEWG Bldg,Poly Int Plaza T3,Zone7, Beijing 100102, Peoples R China
Recommended Citation
GB/T 7714
Guo, Qingyuan,Zhang, Xiaohong,Li, Xuan,et al. Variation and mitigation of musty, septic, chemical, grassy, fishy odors and corresponding odorants in a full-scale drinking water treatment plant with advanced treatments[J]. CHEMOSPHERE,2021,269:-.
APA Guo, Qingyuan.,Zhang, Xiaohong.,Li, Xuan.,Chen, Tianming.,Yang, Bairen.,...&Yu, Jianwei.(2021).Variation and mitigation of musty, septic, chemical, grassy, fishy odors and corresponding odorants in a full-scale drinking water treatment plant with advanced treatments.CHEMOSPHERE,269,-.
MLA Guo, Qingyuan,et al."Variation and mitigation of musty, septic, chemical, grassy, fishy odors and corresponding odorants in a full-scale drinking water treatment plant with advanced treatments".CHEMOSPHERE 269(2021):-.
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