Articles | Volume 21, issue 8
Hydrol. Earth Syst. Sci., 21, 4011–4020, 2017
https://doi.org/10.5194/hess-21-4011-2017
Hydrol. Earth Syst. Sci., 21, 4011–4020, 2017
https://doi.org/10.5194/hess-21-4011-2017

Research article 08 Aug 2017

Research article | 08 Aug 2017

Transport and degradation of perchlorate in deep vadose zone: implications from direct observations during bioremediation treatment

Ofer Dahan et al.

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Cited articles

Allaire, S. E., Roulier, S., and Cessna, A. J.: Quantifying preferential flow in soils: A review of different techniques, J. Hydrol., 378, 179–204, https://doi.org/10.1016/j.jhydrol.2009.08.013, 2009.
Amiaz, Y., Sorek, S., Enzel, Y., and Dahan, O.: Solute transport in the vadose zone and groundwater during flash floods, 47, 1–10, https://doi.org/10.1029/2011WR010747, 2011.
Attaway, H. and Smith, M.: Reduction of perchlorate by an anaerobic enrichment culture, J. Ind. Microbiol., 12, 408–412, https://doi.org/10.1007/BF01569673, 1993.
Baram, S., Arnon, S., Ronen, Z., Kurtzman, D., and Dahan, O.: Infiltration Mechanism Controls Nitrification and Denitrification Processes under Dairy Waste Lagoon, J. Environ. Qual., 41, 1623–1632, https://doi.org/10.2134/jeq2012.0015, 2012a.
Baram, S., Arnon, S., Ronen, Z., Kurtzman, D., and Dahan, O.: Infiltration Mechanism Controls Nitrification and Denitrification Processes under Dairy Waste Lagoon, J. Environ. Qual., 41, 1623–1632, https://doi.org/10.2134/jeq2012.0015, 2012b.
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Short summary
In situ bioremediation of a perchlorate-contaminated vadose zone was conducted through infiltration of electron-donor-enriched water. A vadose zone monitoring system (VMS) provided real-time tracking of the hydraulic and chemical conditions across the unsaturated zone. Variations in concentration profiles of perchlorate, chloride, DOC and bromide in the vadose zone pore water showed limited migration capacity of biologically consumable carbon and significant mobilization of perchlorate.