Adsorption and bio-reduction are preferred methods for the Cr (VI) removal due to its toxicity
and carcinogenicity. However, the migration and transformation mechanisms of Cr (VI) in the …

This study explores the reuse of spent coffee-grounds (SCGs) and the use of dissolved
humic acid (DHA) to remediate acid sulfate (AS) soil drainage using adsorption and …

Recycling the charred agricultural residues as a soil conditioner combines the advantages
of cycling back the plant nutrition, sequestering carbon, and fixing heavy metals. Cadmium …

Clostridium sp. LQ25 was cultured in different forms of ferric (ferric citrate and ferric
hydroxide) as electron acceptors to investigate growth, ferric reduction, hydrogen …

Redox state fluctuations are a primary mechanism controlling the mobilization of trace
metals in soils. However, underlying lithology may modulate the effect that redox fluctuations …

The cumulative effects of periodic redox cycling on the mobility of As, Fe, and S from alluvial
sediment to groundwater were investigated in bioreactor experiments. Two particular …

Determining reaction mechanisms that control the mobility of nutrients and toxic elements in
soil matrices is confounded by complex assemblages of minerals, non-crystalline solids …

Iron oxyhydroxides as an important adsorbent, catalyzer, or electrode material can be
commonly prepared in surfactant-rich ferric solutions. Herein in this work, we investigated …

Reactive oxygen species (ROS), including superoxide (eg,• O 2−), peroxides (eg, H 2 O 2),
and free radicals (eg,• OH), are of considerable interest in mediating contaminant …

Evidence of sulfate input and reduction in coastal freshwater wetlands is often visible in the
black iron monosulfide (FeS) complexes that form in iron rich reducing sediments. Using a …