globalchange  > 气候减缓与适应
DOI: 10.1016/j.watres.2017.10.059
Scopus记录号: 2-s2.0-85032900297
论文题名:
Natural attenuation of chlorinated ethenes in hyporheic zones: A review of key biogeochemical processes and in-situ transformation potential
作者: Weatherill J.J.; Atashgahi S.; Schneidewind U.; Krause S.; Ullah S.; Cassidy N.; Rivett M.O.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 128
起始页码: 362
结束页码: 382
语种: 英语
英文关键词: Biogeochemistry ; Biotransformation ; Chlorinated ethenes ; Heterogeneity ; Hyporheic zone ; Natural attenuation
Scopus关键词: Aerobic bacteria ; Aquifers ; Biodegradation ; Biogeochemistry ; Biological materials ; Biological water treatment ; Chlorine compounds ; Groundwater pollution ; Groundwater resources ; Hydrogeology ; Impurities ; Metabolism ; Solute transport ; Stream flow ; Surface waters ; Biotransformation ; Biotransformation process ; Chlorinated ethenes ; Geological heterogeneities ; Heterogeneity ; Hyporheic zone ; Microbial metabolic process ; Natural attenuation capacities ; Natural attenuation ; chlorinated ethene ; ethylene ; ferric ion ; hydrogen ; natural organic matter ; nitrate ; organohalogen derivative ; oxygen ; short chain fatty acid ; sulfate ; surface water ; unclassified drug ; vinyl chloride ; 1,2 dichloroethane ; ethylene ; ethylene derivative ; ground water ; vinylidene chloride ; anoxic conditions ; bacterium ; biofilm ; biogeochemistry ; biotransformation ; chemical compound ; degradation ; ecophysiology ; ethylene ; fermentation ; fluvial deposit ; groundwater flow ; heterogeneity ; hyporheic zone ; microbial activity ; monitoring system ; natural attenuation ; pollutant property ; porewater ; respiration ; river bed ; solute transport ; water chemistry ; aerobic bacterium ; aerobic metabolism ; biofilm ; biogeochemical cycling ; biotransformation ; chemical interaction ; chlorination ; fermentation ; food web ; hydrology ; mass ; nonhuman ; plume ; priority journal ; reduction (chemistry) ; Review ; sediment ; anaerobic growth ; bioremediation ; ecosystem ; halogenation ; metabolism ; microbiology ; river ; Anaerobiosis ; Bacteria, Aerobic ; Biodegradation, Environmental ; Dichloroethylenes ; Ecosystem ; Ethylene Dichlorides ; Ethylenes ; Fermentation ; Groundwater ; Halogenation ; Rivers ; Vinyl Chloride
英文摘要: Chlorinated ethenes (CEs) are legacy contaminants whose chemical footprint is expected to persist in aquifers around the world for many decades to come. These organohalides have been reported in river systems with concerning prevalence and are thought to be significant chemical stressors in urban water ecosystems. The aquifer-river interface (known as the hyporheic zone) is a critical pathway for CE discharge to surface water bodies in groundwater baseflow. This pore water system may represent a natural bioreactor where anoxic and oxic biotransformation process act in synergy to reduce or even eliminate contaminant fluxes to surface water. Here, we critically review current process understanding of anaerobic CE respiration in the competitive framework of hyporheic zone biogeochemical cycling fuelled by in-situ fermentation of natural organic matter. We conceptualise anoxic-oxic interface development for metabolic and co-metabolic mineralisation by a range of aerobic bacteria with a focus on vinyl chloride degradation pathways. The superimposition of microbial metabolic processes occurring in sediment biofilms and bulk solute transport delivering reactants produces a scale dependence in contaminant transformation rates. Process interpretation is often confounded by the natural geological heterogeneity typical of most riverbed environments. We discuss insights from recent field experience of CE plumes discharging to surface water and present a range of practical monitoring technologies which address this inherent complexity at different spatial scales. Future research must address key dynamics which link supply of limiting reactants, residence times and microbial ecophysiology to better understand the natural attenuation capacity of hyporheic systems. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113127
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作者单位: School of Physical and Geographical Sciences, Keele University, United Kingdom; Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, Wageningen, WE 6708, Netherlands; Department of Engineering Geology and Hydrogeology, RWTH Aachen University, Aachen, Germany; School of Geography, Earth and Environmental Science, University of Birmingham, United Kingdom; School of Engineering, University of Birmingham, United Kingdom; Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, United Kingdom; GroundH2O Plus Ltd., Quinton, Birmingham, United Kingdom

Recommended Citation:
Weatherill J.J.,Atashgahi S.,Schneidewind U.,et al. Natural attenuation of chlorinated ethenes in hyporheic zones: A review of key biogeochemical processes and in-situ transformation potential[J]. Water Research,2018-01-01,128
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