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Nitrogen Removal Under the Condition of Carbon Source Supplement in Integrated Vertical-flow Constructed Wetland
She Li-hua (slihua0815@yahoo.com.cn); He Feng (hefeng@ihb.ac.cn); Xu Dong; Lin Ji-dong; Wu Zhen-bin; She Li-hua; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
2009
Source PublicationHuanjing Kexue
ISSN0250-3301
Volume30Issue:11Pages:3300-3305
AbstractCarbon source is the main factor influencing biological denitrification efficiency. In most cities of China, carbon content in sewage was observed to be low, herein carbon source supplement should be considered to provide electron donors needed in biological denitrification process. The influence of adding different carbon sources through aeration pipe of integrated vertical-flow constructed wetland (IVCW) on nitrogen removal had been studied. Carbon source supplement to the bottom of IVCW could improve microbe conditions and intensify nitrogen removal function of IVCW. The results showed that glucose as external carbon source was better than carboxymethyl cellulose (CMC) on denitrification. Nitrogen removal had significant difference between adding glucose and no carbon source in IVCW system(p < 0.05). By the experiments of adding different quantity of glucose, the dose of 1.5 g glucose under 60 L.d(-1) hydraulic load was the optimization for denitrification. C6H12O6 : NO3- -N was 4.3 and far lower than that by adding in inflow. So carbon source supplement to the bottom of IVCW through aeration pipe could save carbon source supplement cost. Additionally, adding glucose for four hours before influent feeding could improve nitrogen removal.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18581
Collection期刊论文
Corresponding AuthorShe Li-hua; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
She Li-hua ,He Feng ,Xu Dong,et al. Nitrogen Removal Under the Condition of Carbon Source Supplement in Integrated Vertical-flow Constructed Wetland[J]. Huanjing Kexue,2009,30(11):3300-3305.
APA She Li-hua .,He Feng .,Xu Dong.,Lin Ji-dong.,Wu Zhen-bin.,...&Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China.(2009).Nitrogen Removal Under the Condition of Carbon Source Supplement in Integrated Vertical-flow Constructed Wetland.Huanjing Kexue,30(11),3300-3305.
MLA She Li-hua ,et al."Nitrogen Removal Under the Condition of Carbon Source Supplement in Integrated Vertical-flow Constructed Wetland".Huanjing Kexue 30.11(2009):3300-3305.
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