Engineered Streambeds for Induced Hyporheic Flow: Enhanced Removal of Nutrients, Pathogens, and Metals from Urban Streams

作者: S. P. Herzog , C. P. Higgins , J. E. McCray

DOI: 10.1061/(ASCE)EE.1943-7870.0001012

关键词:

摘要: AbstractThe hyporheic zone (HZ) has the potential to mitigate nonpoint source pollution that threatens urban streams, but limited flows and inefficient interchange typically constrain its water quality improvements. This paper presents coordinated streambed hydraulic conductivity (K) modifications, termed Biohydrochemical Enhancement Structures for Streamwater Treatment (BEST), efficiently drive interchange, attenuating nutrients, metals, pathogens. Numerical models consisted of sandy HZ with high low K media components, variable slope in situ sediment K. BEST contaminant mitigation was estimated using flow residence time (RT) simulations removal rate constants from literature specific porous media. Hyporheic improved, whereas mean RT decreased approximately linearly increasing Despite vast differences RT, relatively consistent among which reaction scale...

参考文章(75)
Runping Han, Weihua Zou, Zongpei Zhang, Jie Shi, Jiujun Yang, Removal of copper(II) and lead(II) from aqueous solution by manganese oxide coated sand I. Characterization and kinetic study. Journal of Hazardous Materials. ,vol. 137, pp. 384- 395 ,(2006) , 10.1016/J.JHAZMAT.2006.02.021
Lan Zhang, Eric A. Seagren, Allen P. Davis, Jeffrey S. Karns, The capture and destruction of Escherichia coli from simulated urban runoff using conventional bioretention media and iron oxide-coated sand. Water Environment Research. ,vol. 82, pp. 701- 714 ,(2010) , 10.2175/106143010X12609736966441
Ronnie D. Gordon, Heavy metals removal ,(1995)
Judea Pearl, Direct and Indirect Effects uncertainty in artificial intelligence. pp. 411- 420 ,(2001)
M.G. McDonald, A.W. Harbaugh, A modular three-dimensional finite-difference ground-water flow model Techniques of water-resources investigations. ,(1984) , 10.3133/OFR83875
Jesus D. Gomez, John L. Wilson, M. Bayani Cardenas, Residence time distributions in sinuosity‐driven hyporheic zones and their biogeochemical effects Water Resources Research. ,vol. 48, ,(2012) , 10.1029/2012WR012180
Martin A. Briggs, Laura K. Lautz, Danielle K. Hare, Residence time control on hot moments of net nitrate production and uptake in the hyporheic zone Hydrological Processes. ,vol. 28, pp. 3741- 3751 ,(2014) , 10.1002/HYP.9921
Marwan A. Hassan, Daniele Tonina, Roger D. Beckie, Matthew Kinnear, The effects of discharge and slope on hyporheic flow in step-pool morphologies Hydrological Processes. ,vol. 29, pp. 419- 433 ,(2015) , 10.1002/HYP.10155
Mashfiqus Salehin, Aaron I. Packman, Matthew Paradis, Hyporheic exchange with heterogeneous streambeds: Laboratory experiments and modeling Water Resources Research. ,vol. 40, ,(2004) , 10.1029/2003WR002567