Use Of Eggshell As Adsorbent In Elimination Of Pb (Ii) And Cd (Ii) From Aqueous Solutions
Excessive discharge of toxic metals into water surfaces as a result of increased production has become the main ecological problem due to the lack of efficiency of techniques that would deal with industrial liquid waste. These metals accumulate at high toxicity levels and cause a serious impact on aquatic organisms without a visible sign. They can cause poisoning or toxic effects even in lower concentrations. Therefore, these toxic heavy metals include cadmium, manganese, copper, lead, nickel, cobalt and chromium. They are highly toxic metals when they are brought into the body and have a direct effect on humans and animals, and indirectly through the food chain. In this paper, a study was carried out to investigate the possibility of using lower biomass wastes in powdered sintered (egg shell) adsorption of lead metal Pb (II) lead, Cd (II) from aqueous solutions, and the effect of the initial concentration Pb (II) , Cd (II) on the adsorption efficiency on the surface of sintered (egg shell).
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