copper removal by chitosan beads —-( copper sulfate pentahydrate solution are used)
1- equilibrium study
2- kinetic study
3- ph study
4- contact time study
5- regeneration study
– phosphate removal ( orthophosphate solution ) using copper chitosan beads after copper adsorption
1- effect of copper loaded concentration
2- effect of another anion like ( chloride, sulfate, and nitrate) on adsorption of orthophosphate
3- equilibrium study
4- kinetic study
5- ph study
6- regeneration study
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