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Quantitative response of nitrogen dynamic processes to functional gene abundances in a pond-ditch circulation system for rural wastewater treatment
Ma, Lin1,2; Liu, Wei1,3; Tan, Qiyang1,3; Zhou, Qiaohong1; Wu, Zhenbin1; He, Feng1
Corresponding AuthorHe, Feng(hefeng@ihb.ac.cn)
2019-09-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume134Pages:101-111
AbstractThe pond-ditch circulation system (PDCS) is a promising solution for the restoration of rural wastewater. However, the underlying nitrogen removal mechanisms and roles of functional genes in nitrogen transformation processes have not yet been quantified at the molecular level. In this study, PDCSs have been found to have high removal efficiencies when the chemical oxygen demand (COD) and total nitrogen (TN) was high (> 70%; 62.7-93.9%, respectively). Meanwhile, the presence of simultaneous nitrification, anaerobic ammonium oxidation (anammox), and denitrification processes were the primary nitrogen removal mechanisms in the PDCSs. According to the stepwise regression analysis and path analysis, two key functional gene groups, nosZ/(nirS + nirK) and (nxrA/amoA), were driving these major processes for TN and ammonia nitrogen (NH4+-N), respectively. Moreover, the key functional gene group narG/nxrA was affecting processes related to nitrate-nitrogen (NO3--N) and nitrite-nitrogen (NO2--N) conversion. Furthermore, results from the N-15 isotope pairing technique suggested that for PDCSs, anammox was mainly responsible for nitrogen removal due to its high contribution to total N-2 production (50.3%) in the ditch; denitrification, on the other hand, was primarily attributed to nitrogen removal, rather than the anammox process, in two ponds (41.3-43.1%).
KeywordPond-ditch circulation system (PDCS) Functional genes Nitrogen transformation rate Quantitative response relationship Potential activity
DOI10.1016/j.ecoleng.2019.05.008
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51709255] ; China Postdoctoral Science Foundation[2017M622555]
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000468733400011
WOS KeywordFLOW CONSTRUCTED WETLAND ; AMMONIA-OXIDIZING ARCHAEA ; HYDRAULIC LOADING RATE ; INFILTRATION SYSTEMS ; DENITRIFYING GENES ; TRICKLING FILTER ; REMOVAL PATHWAYS ; TREATMENT-PLANT ; TRANSFORMATION ; SEWAGE
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/28095
Collection水环境工程研究中心
Corresponding AuthorHe, Feng
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Wuhan Bot Garden, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ma, Lin,Liu, Wei,Tan, Qiyang,et al. Quantitative response of nitrogen dynamic processes to functional gene abundances in a pond-ditch circulation system for rural wastewater treatment[J]. ECOLOGICAL ENGINEERING,2019,134:101-111.
APA Ma, Lin,Liu, Wei,Tan, Qiyang,Zhou, Qiaohong,Wu, Zhenbin,&He, Feng.(2019).Quantitative response of nitrogen dynamic processes to functional gene abundances in a pond-ditch circulation system for rural wastewater treatment.ECOLOGICAL ENGINEERING,134,101-111.
MLA Ma, Lin,et al."Quantitative response of nitrogen dynamic processes to functional gene abundances in a pond-ditch circulation system for rural wastewater treatment".ECOLOGICAL ENGINEERING 134(2019):101-111.
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