Although heavy metals are naturally found in the environment as components of earth’s crust, environmental pollution by these toxic elements has increased since industrial revolution. Some them can be considered essential, they play regulatory roles different biological processes; but role other living tissues is not clear, and once ingested accumulate organism for long periods time causing adv...

The toxic element Cadmium (II) was determined by using the widely and easily available shells of fruits stone apple with a good result. cadmium is highly in trace amount also, therefore its detection most important. In present work effective powerful adsorbent properties waste (Aegle marmelos) were thoroughly studied. this determination heavy metals from solutions salt efficiently carried out. ...

   In this study, cadmium sulfide nanoparticles (CdS NPs) were prepared, characterized and used as a new adsorbent for simultaneous removal of Pb(II) and Cu(II) ions from aqueous solutions. Using a batch adsorption method, the effects of solution pH, contact time, adsorbent dose, and temperature were studied and optimized. Removal efficiencies, higher than 98% were obtained for both the met...

Metal contamination in groundwater often occurs various industrial processes. Studies have confirmed that polysulfide could reduce hexavalent chromium to trivalent chromium, achieving the effect of situ stabilization. For other metal groundwater, whether also had a stabilizing ability achieve remediation. This research focused on metals addition contaminated including lead, nickel, zinc, copper...