DOI: 10.2166/wcc.2015.102
论文题名: Variations of disinfection by-product levels in small drinking water utilities according to climate change scenarios: A first assessment
作者: Delpla I. ; Scheili A. ; Guilherme S. ; Cool G. ; Rodriguez M.J.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2016
卷: 7, 期: 1 起始页码: 1
结束页码: 15
语种: 英语
英文关键词: Disinfection by-products
; Drinking water quality
; Emissions scenarios
; Empirical models
; Small water supplies
; Water resources
英文摘要: In Québec, Canada, shifts in climate patterns (i.e., rainfall increase) could have consequences on source water quality due to the intensification of surface/groundwater runoff contamination events, leading to a decline in drinking water treatment efficiency and ultimately disinfection by-products (DBPs) formation following treatment. To assess the impacts of climate change (CC) scenarios on DBP formation, a suite of models linking climate to DBPs was used. This study applies three emissions scenarios (B1, A1B and A2) for three 30-year horizons (2020, 2050 and 2080) in order to produce inputs to test several DBP models (total trihalomethanes (TTHMs), haloacetic acids and haloacetonitriles). An annual increase is estimated for all DBPs for each CC scenario and horizon. The highest seasonal increases were estimated for winter for all DBP groups or species. In the worst-case scenario (A2-2080), TTHMs could be affected more particularly during winter (+34.0%), followed by spring (+16.1%) and fall (+4.4%), whereas summer concentrations would remain stable (−0.3 to +0.4%). Potentially, small water utilities applying only a disinfection step could be more affected by rising TTHMs concentrations associated with CC than those having implemented a complete water treatment process (coagulation–flocculation, filtration and disinfection) with +13.6% and +8.2% increases respectively (A2-2080). © IWA Publishing 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67583
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: École Supérieure d’aménagement du territoire et de Développement Régional, Université Laval, 1624 Pavillon F.A. Savard, Ste-Foy, QC, Canada
Recommended Citation:
Delpla I.,Scheili A.,Guilherme S.,et al. Variations of disinfection by-product levels in small drinking water utilities according to climate change scenarios: A first assessment[J]. Journal of Water and Climate Change,2016-01-01,7(1)