TY - JOUR
T1 - Removal of aluminum from aqueous solutions by adsorption on date-pit and BDH activated carbons
AU - Al-Muhtaseb, Shaheen A.
AU - El-Naas, Muftah H.
AU - Abdallah, Sami
N1 - Funding Information:
The authors would like to acknowledge the financial support provided by the Japan Cooperation Center, Petroleum (JCCP) and the technical support of the Nippon Oil Research Institute Co. Ltd. (NORI). They would also like to thank Abu Dhabi Oil Refining Company (TAKREER) and the Research Affairs at the UAE University for their support. Special thanks are also due to the following individuals for their help with the experimental work: Ali Dowaidar and Hasan Kamal.
PY - 2008/10/30
Y1 - 2008/10/30
N2 - The use of a locally prepared date-pit activated carbon and the commercially available BDH activated carbon for the removal of trivalent aluminum from aqueous solutions was examined at various conditions. In the acidic range of aluminum solubility (up to pH value of 4), both adsorbents exhibited maximum (almost equivalent) capacities for adsorbing aluminum at the pH value of 4. Date-pit activated carbon was more capable of adsorbing traces or low concentrations of aluminum ions in the solution. At low initial concentrations of aluminum and low pH, the uptake of aluminum using date-pit activated carbon was 0.305 mg/g, while that using BDH activated carbon was only 0.021 mg/g. However, the BDH activated carbon was more effective in adsorbing aluminum with high concentrations and low pH. Furthermore, date-pit activated carbon exhibited higher initial adsorption rates as compared to BDH, which showed higher rates at longer periods of time.
AB - The use of a locally prepared date-pit activated carbon and the commercially available BDH activated carbon for the removal of trivalent aluminum from aqueous solutions was examined at various conditions. In the acidic range of aluminum solubility (up to pH value of 4), both adsorbents exhibited maximum (almost equivalent) capacities for adsorbing aluminum at the pH value of 4. Date-pit activated carbon was more capable of adsorbing traces or low concentrations of aluminum ions in the solution. At low initial concentrations of aluminum and low pH, the uptake of aluminum using date-pit activated carbon was 0.305 mg/g, while that using BDH activated carbon was only 0.021 mg/g. However, the BDH activated carbon was more effective in adsorbing aluminum with high concentrations and low pH. Furthermore, date-pit activated carbon exhibited higher initial adsorption rates as compared to BDH, which showed higher rates at longer periods of time.
KW - Activated carbon
KW - Adsorption
KW - Date-pits
KW - Isotherms
KW - Precipitation
UR - http://www.scopus.com/inward/record.url?scp=50549094997&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50549094997&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2008.01.080
DO - 10.1016/j.jhazmat.2008.01.080
M3 - Article
C2 - 18321643
AN - SCOPUS:50549094997
SN - 0304-3894
VL - 158
SP - 300
EP - 307
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 2-3
ER -