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Removal of Heavy Metals from Wastewater Using Crab shells

Removal of Heavy Metals from Wastewater Using Crab shells

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Percent(%)<br />

120<br />

100<br />

Percent Adsorption vs pH<br />

Concentration <strong>of</strong> Pb, Cd and Ni 2.5 mg/L<br />

<strong>Crab</strong> Shell: 10 g/L<br />

80<br />

60<br />

40<br />

Cadmium<br />

Lead<br />

Nickel<br />

20<br />

0<br />

1 2 3 4 5 6 7 8 9

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