TY - JOUR
T1 - Biosorption of Cu2+, Cd2+, Pb2+, and Zn2+ using dried marine green macroalga Caulerpa lentillifera
AU - Pavasant, Prasert
AU - Apiratikul, Ronbanchob
AU - Sungkhum, Vimonrat
AU - Suthiparinyanont, Prateep
AU - Wattanachira, Suraphong
AU - Marhaba, Taha F.
N1 - Funding Information:
The authors wish to acknowledge the Thailand Research Fund (Royal Golden Jubilee Ph.D. Scholarship) for the financial support and Banchong Farm at Chachoengsao province, Thailand for providing the algal biomass used in the study.
PY - 2006/12
Y1 - 2006/12
N2 - The sorption of Cu2+, Cd2+, Pb2+, and Zn2+ by a dried green macroalga Caulerpa lentillifera was investigated. The removal efficiency increased with pH. The analysis with FT-IR indicated that possible functional groups involved in metal sorption by this alga were O-H bending, N-H bending, N-H stretching, C-N stretching, C-O, S{double bond, long}O stretching, and S-O stretching. The sorption of all metal ions rapidly reached equilibrium within 20 min. The sorption kinetics of these metals were governed by external mass transfer and intraparticle diffusion processes. The sorption isotherm followed the Langmuir isotherm where the maximum sorption capacities was Pb2+ > Cu2+ > Cd2+ > Zn2+.
AB - The sorption of Cu2+, Cd2+, Pb2+, and Zn2+ by a dried green macroalga Caulerpa lentillifera was investigated. The removal efficiency increased with pH. The analysis with FT-IR indicated that possible functional groups involved in metal sorption by this alga were O-H bending, N-H bending, N-H stretching, C-N stretching, C-O, S{double bond, long}O stretching, and S-O stretching. The sorption of all metal ions rapidly reached equilibrium within 20 min. The sorption kinetics of these metals were governed by external mass transfer and intraparticle diffusion processes. The sorption isotherm followed the Langmuir isotherm where the maximum sorption capacities was Pb2+ > Cu2+ > Cd2+ > Zn2+.
KW - Biosorbent
KW - Heavy metals
KW - Sorption
KW - Wastewater treatment
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U2 - 10.1016/j.biortech.2005.10.032
DO - 10.1016/j.biortech.2005.10.032
M3 - Article
C2 - 16330209
AN - SCOPUS:33746227335
SN - 0960-8524
VL - 97
SP - 2321
EP - 2329
JO - Bioresource Technology
JF - Bioresource Technology
IS - 18
ER -