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Comparative evaluations of organic matters and nitrogen removal capacities of integrated vertical-flow constructed wetlands: Domestic and nitrified wastewater treatment
Chang, Jun J.1; Liang, Kang2,3; Wu, Su Q.4; Zhang, Sheng H.1; Liang, Wei2; Liang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2015-06-07
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
ISSN1093-4529
Volume50Issue:7Pages:757-766
AbstractTwo groups of integrated vertical-flow constructed wetland (IVCW) microcosms were established for treating two types of representative wastewater: domestic and nitrified wastewater under two loading rates (LRs) over about two years. Their removal capacities of organic substance and nitrogen as well as the effects of loading rate (LR), outflow temperature and dissolved oxygen (DO) concentration were investigated and compared. Efficient chemical oxygen demand (COD) eliminations were achieved by the IVCWs, with the mass removal rates increasing linearly with the increasing LRs strongly, achieving average value of 56.07g m(-2) d(-1) at the highest loading rate. Nevertheless, the effluent COD concentrations also increased, with the average value exceeding Class I A discharge standard (< 50mg L-1) for municipal wastewater treatment plants in China at the highest loading rate. Greater total nitrogen (TN) mass removal rates but lower efficiencies were obtained at the high LR for both types of wastewater, and better removal was achieved for nitrified wastewater (NW) in comparison to domestic wastewater (DW), probably due to the prevailing anoxic conditions inside the IVCW beds restricted nitrification process of DW. The influences of LR, temperature and DO on COD removal were slight, but all remarkable on TN reduction. As compared to DO, temperature was more crucial for nitrogen removal, and the temperature dependence coefficient for TN removal of low LR of NW was significantly greater than others.
SubtypeArticle
KeywordNitrified Wastewater Nitrogen Removal Dissolved Oxygen Integrated Vertical-flow Constructed Wetlands Temperature Loading Rate Cod Removal Domestic Wastewater
Department[Chang, Jun J. ; Zhang, Sheng H.] Yunnan Univ, Res Inst Engn & Technol, Kunming, Peoples R China ; [Liang, Kang ; Liang, Wei] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China ; [Liang, Kang] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China ; [Wu, Su Q.] Jiangxi Acad Environm Sci, Nanchang, Peoples R China
DOI10.1080/10934529.2015.1012009
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS KeywordHYDRAULIC LOADING RATES ; SUBSURFACE FLOW ; WASTEWATERS ; PERFORMANCE ; EXPERIENCE ; SYSTEMS
WOS IDWOS:000353481400010
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/23939
Collection水环境工程研究中心
Corresponding AuthorLiang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
Affiliation1.Yunnan Univ, Res Inst Engn & Technol, Kunming, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China
4.Jiangxi Acad Environm Sci, Nanchang, Peoples R China
Recommended Citation
GB/T 7714
Chang, Jun J.,Liang, Kang,Wu, Su Q.,et al. Comparative evaluations of organic matters and nitrogen removal capacities of integrated vertical-flow constructed wetlands: Domestic and nitrified wastewater treatment[J]. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING,2015,50(7):757-766.
APA Chang, Jun J.,Liang, Kang,Wu, Su Q.,Zhang, Sheng H.,Liang, Wei,&Liang, W .(2015).Comparative evaluations of organic matters and nitrogen removal capacities of integrated vertical-flow constructed wetlands: Domestic and nitrified wastewater treatment.JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING,50(7),757-766.
MLA Chang, Jun J.,et al."Comparative evaluations of organic matters and nitrogen removal capacities of integrated vertical-flow constructed wetlands: Domestic and nitrified wastewater treatment".JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 50.7(2015):757-766.
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