Contrasting Effects of Dissimilatory Iron(III) and Arsenic(V) Reduction on Arsenic Retention and Transport

Reduction of arsenate As(V) and As-bearing Fe (hydr)oxides have been proposed as dominant pathways of As release within soils and aquifers. Here we examine As elution from columns loaded with ferrihydrite-coated sand presorbed with As(V) or As(III) at circumneutral pH upon Fe and/or As reduction; bi...

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Veröffentlicht in:	Environmental science & technology 2006-11, Vol.40 (21), p.6715-6721
Hauptverfasser:	Kocar, Benjamin D, Herbel, Mitchell J, Tufano, Katherine J, Fendorf, Scott
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption Applied sciences Aquifers Arsenic Arsenic - chemistry Bacillus - metabolism Bacillus benzoevorans Biodegradation, Environmental biotransformation desorption Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Environment Exact sciences and technology Ferric Compounds - chemistry ferrihydrite groundwater contamination Groundwaters Hydrogen-Ion Concentration Iron Iron - chemistry iron hydroxides laboratories microbial activity Models, Theoretical Natural water pollution pollutants Pollution Pollution sources. Measurement results Pollution, environment geology reduction Shewanella - metabolism Shewanella putrefaciens Soil and sediments pollution soil pollution soil transport processes Soils Solubility strains Sulfurospirillum barnesii Time Factors Water treatment and pollution
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