Author:

Keywords:

heavy metals, oxidation, ph, river sediments, polluted anoxic sediments, heavy-metals, resuspension, release, remobilization, mobilization, soils, Science & Technology, Life Sciences & Biomedicine, Physical Sciences, Environmental Sciences, Meteorology & Atmospheric Sciences, Water Resources, Environmental Sciences & Ecology, pH, HEAVY-METALS, RESUSPENSION, RELEASE, REMOBILIZATION, MOBILIZATION, SOILS

Abstract:

The influence of dredging and land-disposal of a severely polluted river sediment on the release of heavy metals was studied. During the first 20 days of sediment oxidation and ripening, the pH of the sediment decreased from 8.0 to 3.5 and considerable Zn-(g/L level), Ni-, Cd-, Co-, Cu-, Pb- and Cr-(mg/L level) concentrations were released into the porewater.