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题名: Phosphorus removal performance and biological dephosphorization process in treating reclaimed water by Integrated Vertical-flow Constructed Wetlands (IVCWs)
作者: Du, Lu1, 2; Chen, Qianru1, 2; Liu, Panpan2, 3; Zhang, Xia1, 2; Wang, Huihui2, 3; Zhou, Qiaohong2; Xu, Dong2; Wu, Zhenbin2
关键词: Integrated Vertical-flow Constructed ; Wetlands (IVCWs) ; Phosphate removal ; Biological dephosphorization ; Enzyme activity ; Microbial community
刊名: BIORESOURCE TECHNOLOGY
发表日期: 2017-11-01
DOI: 10.1016/j.biortech.2017.06.092
卷: 243, 页:204-211
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]: Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
研究领域[WOS]: Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
英文摘要: Phosphorous removal in adsorption had been extensively researched; however, the biological dephosphorization process and optimum operating parameters have not been discussed or quantified in Integrated Vertical-flow Constructed Wetlands (IVCWs). In this study, IVCWs planted with different plants were employed to evaluate total phosphorus (TP) treatment performance under different hydraulic retention times (HRTs), in summer and autumn. The results showed that the systems planted with Canna generalis showed the highest TP removal efficiency (77%) under a three-day HRT in autumn. The activities of exopolyphosphatase (PPX) and polyphosphate kinase (PPK) were determined, and it was found that PPK activity was seasonably variable and had been more active in autumn than that in summer (p < 0.05). Highly significant correlation was revealed between PPK activity and TP removal efficiency (p < 0.05). The 16S rDNA high-throughput sequencing results indicated that Pseudomonas genus might be the main participant in phosphorus aerobic biological adsorption in IVCWs. (C) 2017 Elsevier Ltd. All rights reserved.
关键词[WOS]: DOMESTIC WASTE-WATER ; ACTIVATED-SLUDGE ; PHOSPHATE REMOVAL ; NITROGEN REMOVAL ; ACCUMULATING BACTERIA ; MICROBIAL PROCESSES ; EFFICIENCY ; SYSTEM ; TEMPERATURE ; PLANTS
语种: 英语
项目资助者: Major Science and Technology Program for Water 20 Pollution Control and Treatment of China(2017ZX07602-002-004) ; major projects of technical innovation of Hubei province(2016ACA169)
WOS记录号: WOS:000411239300024
ISSN号: 0960-8524
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/35275
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Wuhan Univ Technol, Coll Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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