DOI: 10.1016/j.watres.2018.08.020
Scopus记录号: 2-s2.0-85052301140
论文题名: Contaminants of emerging concern in urban stormwater: Spatiotemporal patterns and removal by iron-enhanced sand filters (IESFs)
作者: Fairbairn D.J. ; Elliott S.M. ; Kiesling R.L. ; Schoenfuss H.L. ; Ferrey M.L. ; Westerhoff B.M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 145 起始页码: 332
结束页码: 345
语种: 英语
英文关键词: Best management practice (BMP)
; CEC
; Pesticide
; Pharmaceuticals and personal care products (PPCP)
; Runoff
; Treatment
Scopus关键词: Atmospheric movements
; Budget control
; Catchments
; Contamination
; Effluents
; Hydrophobicity
; Impurities
; Iron
; Land use
; Pesticides
; Sewage
; Storms
; Best management practices
; Contaminants of emerging concerns
; Hierarchical linear modeling
; Human pharmaceuticals
; Personal care compounds
; Pharmaceuticals and personal care products
; Spatiotemporal patterns
; Treatment
; Runoff
; best management practice
; concentration (composition)
; filter
; pesticide
; pollutant source
; PPCP
; runoff
; spatiotemporal analysis
; stormwater
; wastewater
; wastewater treatment
; Minneapolis
; Minnesota
; Saint Paul
; United States
英文摘要: Numerous contaminants of emerging concern (CECs) typically occur in urban rivers. Wastewater effluents are a major source of many CECs. Urban runoff (stormwater) is a major urban water budget component and may constitute another major CEC pathway. Yet, stormwater-based CEC field studies are rare. This research investigated 384 CECs in 36 stormwater samples in Minneapolis-St. Paul, Minnesota, USA. Nine sampling sites included three large stormwater conveyances (pipes) and three paired iron-enhanced sand filters (IESFs; untreated inlets and treated outlets). The 123 detected compounds included commercial-consumer compounds, veterinary and human pharmaceuticals, lifestyle and personal care compounds, pesticides, and others. Thirty-one CECs were detected in ≥50% of samples. Individual samples contained a median of 35 targeted CECs (range: 18–54). Overall, median concentrations were ≥10 ng/L for 25 CECs and ≥100 ng/L for 9 CECs. Ranked, hierarchical linear modeling indicated significant seasonal- and site type-based concentration variability for 53 and 30 CECs, respectively, with observed patterns corresponding to CEC type, source, usage, and seasonal hydrology. A primarily warm-weather, diffuse, runoff-based profile included many herbicides. A second profile encompassed winter and/or late summer samples enriched with some recalcitrant, hydrophobic compounds (e.g., PAHs), especially at pipes, suggesting conservative, less runoff-dependent sources (e.g., sediments). A third profile, indicative of mixed conservative/non-runoff, runoff, and/or atmospheric sources and transport that collectively affect a variety of conditions, included various fungicides, lifestyle, non-prescription, and commercial-consumer CECs. Generally, pipe sites had large, diverse land-use catchments, and showed more frequent detections of diverse CECs, but often at lower concentrations; while untreated sites (with smaller, more residential-catchments) demonstrated greater detections of “pseudo-persistent” and other ubiquitous or residentially-associated CECs. Although untreated stormwater transports an array of CECs to receiving waters, IESF treatment significantly removed concentrations of 14 (29%) of the 48 most detected CECs; for these, median removal efficiencies were 26%–100%. Efficient removal of some hydrophobic (e.g., PAHs, bisphenol A) and polar-hydrophilic (e.g., caffeine, nicotine) compounds indicated particulate-bound contaminant filtration and for certain dissolved contaminants, sorption. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112409
Appears in Collections: 气候减缓与适应
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作者单位: Minnesota Pollution Control Agency, 520 LaFayette Rd., St Paul, MN 55155, United States; United States Geological Survey, 2280 Woodale Dr., Mounds View, MN 55112, United States; St. Cloud State University Aquatic Toxicology Laboratory, 720 Fourth Ave. South, St. Cloud, MN 56301, United States
Recommended Citation:
Fairbairn D.J.,Elliott S.M.,Kiesling R.L.,et al. Contaminants of emerging concern in urban stormwater: Spatiotemporal patterns and removal by iron-enhanced sand filters (IESFs)[J]. Water Research,2018-01-01,145