标题:SCREENING AND CHARACTERIZATION OF A NEW DENITRIFYING PHOSPHORUS-REMOVAL BACTERIUM
作者:Zheng Li;Haiyan Pei;Wenrong Hu;Yuanyuan Shao;Panpan Meng
作者机构:[Li, Z] School of Environmental Science and Engineering, Shandong University, 250061 Jinan, Shandong Province, China;[ Pei, H] School of Environmental 更多
通讯作者:Pei, HY
通讯作者地址:[Pei, HY]Shandong Univ, Sch Environm Sci & Engn, Jinan 250061, Shandong, Peoples R China.
来源:Fresenius environmental bulletin: FEB
出版年:2013
卷:22
期:10
页码:2809-2815
关键词:denitrifying phosphate removal bacteria;Paenibacillus lautus;nitrogen and phosphorus removal
摘要:A new strain of denitrifying phosphorus-removal bacteria (DPB) CL-5 was isolated from sludge in the double sludge switching-sequencing batch reactor (DSSBR) which had been stably operated for two years. The strain contained metachromatic granules found in polyphos-phate-accumulating organisms (PAOs) and was a denitri-fier. From the phylogenetic analysis of the 16S rRNA gene sequence, CL-5 was identified as Paenibacillus lautus. The optimal temperature for its denitrification and phosphorus removal rate was 30℃ and the optimal pH was 7-8. The denitrifying gas product of CL-5 was N_2. Nitrogen removal was analyzed in relation to the NO3\"-N concentration. Under the initial concentration of 140mg/L NO_3~-N and 80mg/L PO_4~(3-), the efficiencies of nitrogen (N) and phosphorus (P) removal of CL-5 were 57.5% and 50.2% in the first 24 h, 72.3% and 64.1% in 96 h, respectively. Higher N and P removal efficiency and desired final gas production indicated that CL-5 could be applied to the wastewater treatment, especially for the high concentration of N and P wastewater.
收录类别:SCOPUS;SCIE
WOS核心被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891115787&partnerID=40&md5=cf46790af701f268248dd6c5fa0e9fb9
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