TY - JOUR
T1 - Natural and Fe(II)-induced reduction of hexavalent chromium in soil
AU - Margon, Alja
AU - Valentini, Massimiliano
AU - Mondini, Claudio
AU - Sinicco, Tania
AU - Sequi, Paolo
AU - Leita, Liviana
PY - 2014
Y1 - 2014
N2 - In this study the influence of iron sulphate (FeSO4) on the dynamics of Cr(VI) - Cr(III) reduction in Cr(VI) spiked soil was evaluated, together with the concomitant assessment of the effect of the different treatments on soil microbial biomass size and activity. The results indicate that during the incubation period, the concentration of Cr(VI) in soil decreased over time, thus evidencing a natural attenuation capacity of soil towards Chromate reduction. However, soil microbial biomass and respiration rate were both negatively affected by the presence of Cr(VI), and did not recover during the experiment. Soil amendment with FeSO4 increased the Cr(VI) reduction rate and mitigated its negative effect towards soil microbial biomass and activity.
AB - In this study the influence of iron sulphate (FeSO4) on the dynamics of Cr(VI) - Cr(III) reduction in Cr(VI) spiked soil was evaluated, together with the concomitant assessment of the effect of the different treatments on soil microbial biomass size and activity. The results indicate that during the incubation period, the concentration of Cr(VI) in soil decreased over time, thus evidencing a natural attenuation capacity of soil towards Chromate reduction. However, soil microbial biomass and respiration rate were both negatively affected by the presence of Cr(VI), and did not recover during the experiment. Soil amendment with FeSO4 increased the Cr(VI) reduction rate and mitigated its negative effect towards soil microbial biomass and activity.
KW - Chromate reduction
KW - Hexavalent chromium
KW - Iron sulphate
KW - Soil microbial biomass
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M3 - Article
AN - SCOPUS:84927732376
SN - 1018-4619
VL - 23
SP - 2865
EP - 2869
JO - Fresenius Environmental Bulletin
JF - Fresenius Environmental Bulletin
IS - 11A
ER -