DOI: 10.1016/j.watres.2018.11.050
Scopus记录号: 2-s2.0-85057467055
论文题名: Evaluating emerging organic contaminant removal in an engineered hyporheic zone using high resolution mass spectrometry
作者: Peter K.T. ; Herzog S. ; Tian Z. ; Wu C. ; McCray J.E. ; Lynch K. ; Kolodziej E.P.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 140
结束页码: 152
语种: 英语
英文关键词: Hyporheic zone
; Non-target analysis
; Sorption
; Stormwater treatment
; Suspect screening
; Urban stream restoration
Scopus关键词: Biological water treatment
; Contamination
; Groundwater
; Groundwater pollution
; Mass spectrometry
; Quality control
; Restoration
; Rivers
; Runoff
; Sewage
; Sodium chloride
; Sorption
; Storms
; Water quality
; Emerging organic contaminants
; High resolution mass spectrometry
; Hyporheic zone
; Non-target analysis
; Stormwater treatment
; Stream restoration projects
; Urban stream restoration
; Water quality improvements
; Stream flow
; bromide
; ground water
; storm water
; baseflow
; detection method
; groundwater-surface water interaction
; hyporheic zone
; mass spectrometry
; organic pollutant
; pollutant removal
; pollutant source
; runoff
; sorption
; stormwater
; streamwater
; tracer
; water quality
; water treatment
; Article
; controlled study
; ecosystem
; hydraulic retention time
; hydrophobicity
; hyporheic zone
; mass spectrometry
; mortality
; nonhuman
; Oncorhynchus kisutch
; online monitoring
; priority journal
; quality control
; retention time
; runoff
; surface property
; surface water hydrology
; turnover rate
; uncertainty
; waste component removal
; waste water treatment plant
; water quality
; water sampling
; watershed
; New Hampshire
; Seattle
; Thornton
; United States
; Washington [United States]
; Oncorhynchus kisutch
英文摘要: The hyporheic zone (HZ), located at the interface of surface and groundwater, is a natural bioreactor for attenuation of chemical contaminants. Engineered HZs can be incorporated into stream restoration projects to enhance hyporheic exchange, with flowpaths optimized to promote biological habitat, water quantity, and water quality improvements. Designing HZs for in-stream treatment of stormwater, a significant source of flow and contaminant loads to urban creeks, requires assessment of both the hydrology and biogeochemical capacity for water quality improvement. Here, we applied tracer tests and high resolution mass spectrometry (HRMS) to characterize an engineered hyporheic zone unit process, called a hyporheic design element (HDE), in the Thornton Creek Watershed in Seattle, WA. Dye, NaCl, and bromide were used to hydrologically link downwelling and upwelling zones and estimate the hydraulic retention time (HRT) of hyporheic flowpaths. We then compared water quality improvements across hydrologically-linked surface and hyporheic flowpaths (3–5 m length; ∼30 min to >3 h) during baseflow and stormflow conditions. We evaluated fate outcomes for 83 identified contaminants during stormflow, including those correlated with an urban runoff mortality syndrome in coho salmon. Non-target HRMS analysis was used to assess holistic water quality improvements and evaluate attenuation mechanisms. The data indicated substantial water quality improvement in hyporheic flowpaths relative to surface flow and improved contaminant removal with longer hyporheic HRT (for ∼1900 non-target compounds detected during stormflow, <17% were attenuated >50% via surface flow vs. 59% and 78% via short and long hyporheic residence times, respectively), and strong contributions of hydrophobic sorption towards observed contaminant attenuation. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122101
Appears in Collections: 气候变化事实与影响
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作者单位: Interdisciplinary Arts and Science, University of Washington Tacoma, Tacoma, WA 98421, United States; Center for Urban Waters, Tacoma, WA 98421, United States; Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401, United States; Seattle Public Utilities, Seattle, WA 98104, United States; Department of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195, United States
Recommended Citation:
Peter K.T.,Herzog S.,Tian Z.,et al. Evaluating emerging organic contaminant removal in an engineered hyporheic zone using high resolution mass spectrometry[J]. Water Research,2019-01-01