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Nitrogen and phosphorus transformations and balance in a pond-ditch circulation system for rural polluted water treatment
Ma, Lin1,2; He, Feng1; Huang, Tao1,2; Zhou, Qiaohong1; Zhang, Yi1; Wu, Zhenbin1
2016-09-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume94Pages:117-126
AbstractA pond-ditch circulation system (PDCS), which located along the bank of Donghu Lake (Wuchang District, Wuhan, China) and can effectively remove nitrogen and phosphorus, was proved to be a promising solution for the restoration of a degraded rural water environment. However, little is known about the removal process of nitrogen and phosphorus in the PDCS and the contribution of various pathways to nitrogen and phosphorus removal. This study aims to investigate the mechanisms of nitrogen and phosphorus removal for the PDCS. The results showed that (1) for nitrogen removal in the PDCS, it effectively reduced the total nitrogen level within the first 20 days, where dissolved oxygen (DO) played a pivotal role in the process. Based on the mass balance approach, the plant uptake and sediment storage removal contributed to 20.5% of the total nitrogen input removal, whereas other pathways such as N-2 emission accounted for 79.5% of the nitrogen removal. These results indicated that nitrogen removal mainly depended on nitrification and denitrification. Meanwhile, in addition to microbial mechanisms, plant uptake and sediment storage were the major N transformation and removal pathways; in the static system, the pathways for nitrogen removal were similar with those observed in the PDCS system. (2) For phosphorus removal, microorganism processes coupled with plant uptake might be the major methods for phosphorus removal in the PDCS. In the static system, however, the phosphorus removal was mainly attributed to plant uptake. (C) 2016 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordPond-ditch Circulation System (Pdcs) Rural Wastewater Dgge Nitrogen Removal Phosphorus Removal
DOI10.1016/j.ecoleng.2016.05.051
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Indexed BySCI
Funding OrganizationNational Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04) ; National Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04) ; National Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04) ; National Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04)
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS KeywordDOMESTIC WASTE-WATER ; FLOW CONSTRUCTED WETLAND ; COMMUNITY STRUCTURE ; ENZYME-ACTIVITIES ; SEWAGE-TREATMENT ; DENITRIFYING BACTERIA ; MICROBIAL-POPULATIONS ; TREATMENT PERFORMANCE ; PHOSPHATASE-ACTIVITY ; NITRATE REDUCTASE
WOS IDWOS:000381636400016
Funding OrganizationNational Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04) ; National Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04) ; National Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04) ; National Science and Technology Support Program of the 12th Five-Year Plan, China(2012BAJ21B03-04)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/28331
Collection水环境工程研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ma, Lin,He, Feng,Huang, Tao,et al. Nitrogen and phosphorus transformations and balance in a pond-ditch circulation system for rural polluted water treatment[J]. ECOLOGICAL ENGINEERING,2016,94:117-126.
APA Ma, Lin,He, Feng,Huang, Tao,Zhou, Qiaohong,Zhang, Yi,&Wu, Zhenbin.(2016).Nitrogen and phosphorus transformations and balance in a pond-ditch circulation system for rural polluted water treatment.ECOLOGICAL ENGINEERING,94,117-126.
MLA Ma, Lin,et al."Nitrogen and phosphorus transformations and balance in a pond-ditch circulation system for rural polluted water treatment".ECOLOGICAL ENGINEERING 94(2016):117-126.
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