Removal of bivalent metals dissolved in aqueous medium comprises sorption by biogenic calcium carbonate to reduce e.g. cadmium levels

摘要

The removal of bivalent metals dissolved in aqueous medium has biogenic calcium carbonate of aragonite-type structure used as sorbent. Fragmentation of washed bivalve shells facilitates immersion in the aqueous medium, with significant decrease in the concentrations of dissolved cadmium, lead and e.g. manganese.