DOI: 10.2166/wcc.2016.011
论文题名: Enhancing climate adaptation capacity for drinking water treatment facilities
作者: Levine A.D. ; Yang Y.J. ; Goodrich J.A.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2016
卷: 7, 期: 3 起始页码: 485
结束页码: 497
语种: 英语
英文关键词: Climate adaptation
; Coagulation
; Conventional treatment
; Resilience
; Surface water
; Treatment system models
英文摘要: Conventional water treatment processes (e.g., coagulation, flocculation, sedimentation, and filtration) are widely used for producing drinking water from surface water sources. Transient, gradual, or abrupt changes in source water quality that could compromise treatment effectiveness can be triggered by climate and related meteorological events, accidental or intentional contamination, security breaches, or other disruptions. However, the design principles that underpin the majority of existing conventional treatment systems predate climate adaptation considerations. This paper considers the adaptation capacity of conventional water treatment systems. A modeling framework is used to illustrate climate adaptation mechanisms that could enable conventional treatment systems to accommodate water quality impairments. Treatment system resiliency is explored in response to generic climate-relevant water quality perturbations such as extreme temperature variations and changes in the quantity and characteristics of solids, particles, and organic constituents. Promising adaptation options include modifying chemical parameters (e.g., types of chemicals, dosages, sequence of chemical addition, mixing intensity and duration), filter operations, and microbiological augmentation of existing physical/chemical treatment systems. The capacity reserve concept provides an organizing principle that could be useful for prioritizing climate adaptation strategies such as major or minor treatment/infrastructure modifications, system-wide upgrades such as off-line storage, operational changes in distribution systems, or the use of supplemental water sources including reclaimed or recycled water. © IWA Publishing 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67600
Appears in Collections: 气候减缓与适应
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作者单位: US National Science Foundation, Arlington, VA, United States; Flinders University, Adelaide, Australia; US Environmental Protection Agency, Office of Research and Development, National Risk Management Research Center, Cincinnati, OH, United States; US Environmental Protection Agency, Office of Research and Development, National Homeland Security Research Center, Cincinnati, OH, United States
Recommended Citation:
Levine A.D.,Yang Y.J.,Goodrich J.A.. Enhancing climate adaptation capacity for drinking water treatment facilities[J]. Journal of Water and Climate Change,2016-01-01,7(3)