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Treatment performance comparison between regular O-3-BAC and O-3-BAC with rear sand filtration: verification in a full-scale study
Yang, Kai; Yu, Jianwei; Guo, Qingyuan; Wang, Chunmiao; Xia, Ping; Yang, Y. Jeffrey; Yang, Min
2019-07-12
Source PublicationENVIRONMENTAL SCIENCES EUROPE
ISSN2190-4707
Volume31Pages:-
AbstractBackgroundTo improve the microbial safety of drinking water, an arrangement of O-3-BAC with rear sand filtration (O-3-BAC-sand) has been proposed. In this study, efforts were devoted to evaluate the benefits and drawbacks of O-3-BAC-sand in a full-scale water treatment plant. The performance of the two configurations was compared in terms of particles, turbidity, CODMn and typical odorants and pesticides.ResultsThe O-3-BAC-sand yielded lower turbidity but higher CODMn (by approximately 7%) in the finished water than regular O-3-BAC (sand-O-3-BAC). Both systems removed odors in raw water; however, sand-O-3-BAC was more effective on septic and musty odorants. The total pesticide removals by sand-O-3-BAC and O-3-BAC-sand were 78% and 72%, respectively; though the latter had shorter activated carbon durable years.ConclusionThe re-location of the sand filter would sacrifice the BAC efficiency in removals of organic matter and micropollutants. This tradeoff is a result of the loss of the particulate organic matter removal by sand filters, because locating the sand filter behind BAC causes particle load increase on BAC; some measures of enhanced coagulation should be suggested to improve the turbidity and particle removal. The study will be helpful for improvement of the O-3-BAC process in drinking water treatment.
Department中国科学院饮用水科学与技术重点实验室
KeywordSand-O-3-BAC O-3-BAC-sand Sand filter interception Drinking water treatment
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43543
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100019, Peoples R China
3.Yancheng Inst Technol, Yancheng 224051, Peoples R China
Recommended Citation
GB/T 7714
Yang, Kai,Yu, Jianwei,Guo, Qingyuan,et al. Treatment performance comparison between regular O-3-BAC and O-3-BAC with rear sand filtration: verification in a full-scale study[J]. ENVIRONMENTAL SCIENCES EUROPE,2019,31:-.
APA Yang, Kai.,Yu, Jianwei.,Guo, Qingyuan.,Wang, Chunmiao.,Xia, Ping.,...&Yang, Min.(2019).Treatment performance comparison between regular O-3-BAC and O-3-BAC with rear sand filtration: verification in a full-scale study.ENVIRONMENTAL SCIENCES EUROPE,31,-.
MLA Yang, Kai,et al."Treatment performance comparison between regular O-3-BAC and O-3-BAC with rear sand filtration: verification in a full-scale study".ENVIRONMENTAL SCIENCES EUROPE 31(2019):-.
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