Green coconut shells applied as adsorbent for removal of toxic metal ions using fixed-bed column technology.
This study applies green coconut shells as adsorbent for the removal of toxic metal ions from aqueous effluents using column adsorption. The results show that a flow rate of 2 mL/min and a bed height of 10 cm are most feasible. Furthermore, larger amounts of effluent can be treated for removal of single ions. The breakthrough curves for multiple elements gave the order of adsorption capacity: Cu(+2) > Pb(+2) > Cd(+2) > Zn(+2) > Ni(+2). Real samples arising from the electroplating industry can be efficiently handled.
Sousa
Francisco W
FW
Department of Hydraulic and Environmental Engineering, Federal University of Ceará - UFC, Fortaleza, CE, Brazil.
Oliveira
André G
AG
Ribeiro
Jefferson P
JP
Rosa
Morsyleide F
MF
Keukeleire
Denis
D
Nascimento
Ronaldo F
RF
D000327:Adsorption; D003059:Cocos / Q000737:chemistry*; D007220:Industrial Waste; D007477:Ions / Q000737:chemistry; D019216:Metals, Heavy / Q000737:chemistry*; D020959:Polyethylene; D014865:Waste Disposal, Fluid / Q000379:methods*; D014866:Waste Products; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods
D007220:Industrial Waste; D007477:Ions; D019216:Metals, Heavy; D014866:Waste Products; D014874:Water Pollutants, Chemical; D020959:Polyethylene