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题名: Influence of light and temperature on the development and denitrification potential of periphytic biofilms
作者: Zhao, Yanhui1, 3; Xiong, Xiong1; Wu, Chenxi1; Xia, Yongqiu2; Li, Jiuyu2; Wu, Yonghong2
关键词: Periphytic biofilms ; Algae ; Light ; Temperature ; Structure ; Functions
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2018-02-01
DOI: 10.1016/j.scitotenv.2017.06.117
卷: 613, 页:1430-1437
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: Periphytic biofilms are microbial aggregates commonly present in submerged aquatic environments and play a significant role in nutrient cycling. In recent years, utilization of natural periphytic biofilms in wastewater treatment and water restoration attracts growing research interests. Light and temperature are two important environmental factors known to affect the development of periphytic biofilms and can be manipulated for the regulation of the biofilm properties. In this work, effects of light and temperature on the development and function (denitrification potential) of periphytic biofilms were investigated using a microcosm experiment. Results showed that thicker periphytic biofilms with higher Chlorophyll a, extracellular polymeric substances (EPS), and total phosphorus contents were developed under higher temperature. Whereas, biomass accumulation was more rapid for periphytic biofilms under higher irradiance. The denitrification potential rate was negatively associated with irradiance, which can be linked to the influence of irradiance on biofilm structure and microbial composition. A relatively lower irradiance is recommended when using periphytic biofilms in nitrogen removal from wastewater. (C) 2017 Elsevier B.V. All rights reserved.
关键词[WOS]: PHOTOTROPHIC RIVER BIOFILMS ; FRESH-WATER ALGAE ; COMMUNITY STRUCTURE ; PHOSPHORUS REMOVAL ; STREAM BIOFILMS ; BY-PRODUCTS ; NUTRIENTS ; STOICHIOMETRY ; GROWTH ; CYANOBACTERIA
语种: 英语
项目资助者: State Key Development Programfor Basic Research of China(2015CB158200) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ11)
WOS记录号: WOS:000414160500142
ISSN号: 0048-9697
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/38894
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.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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