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Manganese oxides in Phragmites rhizosphere accelerates ammonia oxidation in constructed wetlands
Wang, Donglin; Lin, Hui; Ma, Quan; Bai, Yaohui; Qu, Jiuhui
2021-12-15
Source PublicationWATER RESEARCH
ISSN0001-8686
Volume296Pages:-
AbstractThe unintended formation of disinfection by-products (DBPs) has received considerable attention as it may pose risks to human health. Coagulation is the most common process for removing particulates as well as dissolved organic matter (DOM) (i.e., DBP precursors) during drinking water and wastewater treatments. With the improvement of water quality standards and the increased fluctuation in source water quality, conventional coagulation becomes challenging. Thus, significant efforts have been made to enhance coagulation to promote the removal of DOM in source water and mitigate the formation of DBPs in drinking water. This review provides a brief summary of the properties of DBP precursors and summarizes the effectiveness of enhanced coagulation involving three types of coagulants (metal-based coagulants, organic polymers, and organic-inorganic hybrid coagulants) in controlling the formation of DBPs during chlor(am)ination disinfection. Metal-based coagulants can achieve a reduction in DBP formation potential of approximately 20%-60% in natural water under enhanced coagulation conditions. Both the organic polymers (used as coagulant aids) and novel hybrid coagulants increase the removal of DOM and exhibit high potential for mitigating DBP formation. In addition, integrated treatments combining coagulation with other treatment processes (e.g., oxidation, membrane filtration, ion exchange, and adsorption) to enhance DBP precursor removal are evaluated in terms of performance, mechanisms, and features. Advanced treatments, such as membrane filtration and activated carbon adsorption, are effective coagulation-assisted processes, and can further control chlorinated DBPs; however, the elevated formation of bromate or highly brominated DBPs is of particular concern.
Department中国科学院饮用水科学与技术重点实验室
KeywordEnhanced coagulation Disinfection by-products Drinking water Trihalomethanes Haloacetic acids
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46915
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Donglin,Lin, Hui,Ma, Quan,et al. Manganese oxides in Phragmites rhizosphere accelerates ammonia oxidation in constructed wetlands[J]. WATER RESEARCH,2021,296:-.
APA Wang, Donglin,Lin, Hui,Ma, Quan,Bai, Yaohui,&Qu, Jiuhui.(2021).Manganese oxides in Phragmites rhizosphere accelerates ammonia oxidation in constructed wetlands.WATER RESEARCH,296,-.
MLA Wang, Donglin,et al."Manganese oxides in Phragmites rhizosphere accelerates ammonia oxidation in constructed wetlands".WATER RESEARCH 296(2021):-.
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