Evaluation of pilot-scale biochar-amended woodchip bioreactors to remove nitrate, metals, and trace organic contaminants from urban stormwater runoff

2019 ◽  
Vol 154 ◽  
pp. 1-11 ◽  
Author(s):  
Negin Ashoori ◽  
Marc Teixido ◽  
Stephanie Spahr ◽  
Gregory H. LeFevre ◽  
David L. Sedlak ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Stormwater Runoff ◽  
Pilot Scale ◽  
Urban Stormwater ◽  
Trace Organic Contaminants ◽  
Urban Stormwater Runoff ◽  
Trace Organic

scholarly journals Hydrophilic trace organic contaminants in urban stormwater: occurrence, toxicological relevance, and the need to enhance green stormwater infrastructure

2020 ◽  
Vol 6 (1) ◽  
pp. 15-44 ◽  
Author(s):  
Stephanie Spahr ◽  
Marc Teixidó ◽  
David L. Sedlak ◽  
Richard G. Luthy
Keyword(s):  
Water Supply ◽  
Organic Contaminants ◽  
Urban Stormwater ◽  
Trace Organic Contaminants ◽  
Stormwater Harvesting ◽  
Green Stormwater Infrastructure ◽  
Trace Organic

Urban stormwater transports hydrophilic trace organic contaminants that need study to ensure safe stormwater discharge or stormwater harvesting for water supply.

scholarly journals Benzotriazole Uptake and Removal in Vegetated Biofilter Mesocosms Planted with Carex praegracilis

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1605 ◽  
Author(s):  
James Pritchard ◽  
Yeo-Myoung Cho ◽  
Negin Ashoori ◽  
Jordyn Wolfand ◽  
Jeff Sutton ◽  
...  
Keyword(s):  
Surface Water ◽  
Corrosion Inhibitor ◽  
Sorption Capacity ◽  
Organic Contaminants ◽  
Storm Events ◽  
Trace Organic Contaminants ◽  
Treatment Length ◽  
Surface Water Bodies ◽  
Urban Stormwater Runoff ◽  
Trace Organic

Urban stormwater runoff is a significant source of pollutants in surface water bodies. One such pollutant, 1H-benzotriazole, is a persistent, recalcitrant trace organic contaminant commonly used as a corrosion inhibitor in airplane deicing processes, automobile liquids, and engine coolants. This study explored the removal of 1H-benzotriazole from stormwater using bench-scale biofilter mesocosms planted with California native sedge, Carex praegracilis, over a series of three storm events and succeeding monitoring period. Benzotriazole metabolites glycosylated benzotriazole and benzotriazole alanine were detected and benzotriazole and glycosylated benzotriazole partitioning in the system were quantified. With a treatment length of seven days, 97.1% of benzotriazole was removed from stormwater effluent from vegetated biofilter mesocosms. Significant concentrations of benzotriazole and glycosylated benzotriazole were observed in the C. praegracilis leaf and root tissue. Additionally, a significant missing sink of benzotriazole developed in the vegetated biofilter mesocosms. This study suggests that vegetation may increase the operating lifespan of bioretention basins by enhancing the degradation of dissolved trace organic contaminants, thus increasing the sorption capacity of the geomedia.

scholarly journals Benzotriazole Uptake and Removal in Vegetated Biofilter Mesocosms Planted with Carex Praegracilis

2018 ◽  
Author(s):  
James Pritchard ◽  
Yeo-Myoung Cho ◽  
Negin Ashoori ◽  
Richard Luthy
Keyword(s):  
Surface Water ◽  
Corrosion Inhibitor ◽  
Sorption Capacity ◽  
Organic Contaminants ◽  
Storm Events ◽  
Trace Organic Contaminants ◽  
Treatment Length ◽  
Surface Water Bodies ◽  
Urban Stormwater Runoff ◽  
Trace Organic

Urban stormwater runoff is a significant source of pollutants into surface water bodies. One such pollutant, 1H-benzotriazole, is a persistent, recalcitrant trace organic contaminant commonly used as a corrosion inhibitor in airplane deicing processes, automobile liquids, and engine coolants. This study explored the removal of 1H-benzotriazole from stormwater using bench-scale biofilter mesocosms planted with California native sedge, Carex praegracilis, over a series of three storm events and monitoring period. Benzotriazole metabolites glycosylated benzotriazole and benzotriazole alanine were detected and benzotriazole and glycosylated benzotriazole partitioning in the system were quantified. With a treatment length of seven days, 97.1% of benzotriazole was removed from stormwater effluent from vegetated biofilter mesocosms. Significant concentrations of benzotriazole and glycosylated benzotriazole were observed in the C. praegracilis leaf and root tissue. Additionally, a significant missing sink of benzotriazole developed in the vegetated biofilter mesocosms. This study suggests that vegetation may increase the operating lifespan of bioretention basins by enhancing degradation of dissolved trace organic contaminants, thus increasing the sorption capacity of the geomedia.

scholarly journals Trace organic contaminants removal from municipal wastewater using the FluHelik reactor: From laboratory-scale to pre-pilot scale

2021 ◽  
Vol 9 (2) ◽  
pp. 105060
Author(s):  
Jonathan C. Espíndola ◽  
Marlon Caianelo ◽  
Nazareno Scaccia ◽  
Caio Rodrigues-Silva ◽  
José R. Guimarães ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Municipal Wastewater ◽  
Pilot Scale ◽  
Laboratory Scale ◽  
Trace Organic Contaminants ◽  
Contaminants Removal ◽  
Trace Organic

scholarly journals The fate of trace organic contaminants during anaerobic digestion of primary sludge: A pilot scale study

2018 ◽  
Vol 256 ◽  
pp. 384-390 ◽  
Author(s):  
Hop V. Phan ◽  
Richard Wickham ◽  
Sihuang Xie ◽  
James A. McDonald ◽  
Stuart J. Khan ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Organic Contaminants ◽  
Pilot Scale ◽  
Primary Sludge ◽  
Trace Organic Contaminants ◽  
Trace Organic

Spatial and Temporal Distribution of Heavy Metals Concentration in Urban Stormwater Runoff

2013 ◽  
Vol 726-731 ◽  
pp. 1801-1804 ◽  
Author(s):  
Shu Min Wang ◽  
Hui Yu
Keyword(s):  
Heavy Metal ◽  
Stormwater Runoff ◽  
Temporal Distribution ◽  
Urban Region ◽  
Spatial And Temporal Distribution ◽  
Urban Stormwater ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Urban Stormwater Runoff ◽  
Cu And Zn

In order to know the characteristic of spatial and temporal distribution of heavy metal concentrations in urban stormwater runoff, rainfall runoff from impervious underlying surfaces in urban region was observed during rain events. Results showed that during the precipitation process, heavy metal concentrations decreased gradually temporally (except Cd); concentrations of Fe, Cu and Zn meet Class III standard of Environmental Quality Standards for Surface Water in terminal runoff, but concentrations of Cd and Pb go beyond this standard far. Heavy metal concentrations in runoff from different types of landuses were significantly different. The arithmetic average concentrations of Fe, Cd, Cu and Zn in stormwater runoff from roof (e.g.,34.4mg/L, 0.15mg/L, 1.25mg/L and 1.23mg/L, respectively) were obviously higher than that in stormwater runoff from road (e.g., 11.8mg/L, 0.05mg/L, 0.13mg/L and 0.69mg/L, respectively).

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