In-situ zinc bioprecipitation by organic substrate injection in a high-flow, poorly reduced aquifer

We investigated if in-situ metal bioprecipitation (ISMP) is applicable to remediate a highly permeable zinc-contaminated aquifer at a metal-processing factory in Maasmechelen, Belgium. A large (more than 200m long and 70m wide) groundwater contamination plume has developed, with zinc concentrations...

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Veröffentlicht in:	Journal of contaminant hydrology 2013-07, Vol.150, p.25-34
Hauptverfasser:	Lookman, R., Verbeeck, M., Gemoets, J., Van Roy, S., Crynen, J., Lambié, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	aquifers arsenic Bacteria - metabolism Belgium Biodegradation, Environmental Chemical Precipitation detection limit Earth sciences Earth, ocean, space Exact sciences and technology factories field experimentation glycerol Groundwater Groundwater - analysis groundwater contamination groundwater flow High-permeable Hydrogeology Hydrology. Hydrogeology laboratory techniques manganese Precipitation redox potential Remediation solubility sulfates Sulfates - metabolism Sulfide Sulfides - chemistry Sulfides - metabolism vegetable oil Water Pollutants, Chemical - chemistry Zinc Zinc - chemistry
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Beschreibung
Zusammenfassung:	We investigated if in-situ metal bioprecipitation (ISMP) is applicable to remediate a highly permeable zinc-contaminated aquifer at a metal-processing factory in Maasmechelen, Belgium. A large (more than 200m long and 70m wide) groundwater contamination plume has developed, with zinc concentrations in the range of 1–100mg/L, whereas the legal Flemish clean-up standard is 0.5mg/L. The estimated groundwater flow velocity is in the range 0.2–1m/d. The groundwater is relatively oxidized, naturally low in DOC (
ISSN:	0169-7722 1873-6009
DOI:	10.1016/j.jconhyd.2013.03.009