Biosorption of lead contaminated wastewater using cattails (Typha angustifolia) leaves: Kinetic studies

Liew, Sharain Yen Ling and Collin Glen Joseph Anthony Joseph and How, Siew Eng (2011) Biosorption of lead contaminated wastewater using cattails (Typha angustifolia) leaves: Kinetic studies. Journal of the Serbian Chemical Society, 76 (7). pp. 1037-1047. ISSN 0352-5139


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In this work, dried leaves of Typha angustifolia (TA), also known as the common cattail, were used as an adsorbent in kinetic studies of Pb(II) adsorption from synthetic aqueous solutions. Batch adsorption studies with dried TA leaves were conducted and they were able to adsorb Pb(II) from 100 mL of a 25 mg L-1 Pb(II) solution effectively with the optimized dosage of 0.6 g. Adsorption equilibrium was achieved within 8 h with an effective removal of 86.04 %. Adsorption kinetics was further evaluated using four kinetic models, i.e., the pseudo-first order, pseudo-second order, intraparticle diffusion and Elovich model. Fitting of the data was performed based on linear regression analysis. The sorption kinetic data fitted best to the pseudo-second order model with an R2 of 0.9979, followed closely by the Elovich model with an R2 of 0.9952. The obtained results showed the adsorption of Pb(II) by TA leaves, which is an abundant biological material, is feasible, cheap and environmentally friendly.

Item Type: Article
Keyword: Adsorption, Kinetics, Lead, Typha angustifolia
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes > TD429.5-480.7 Water purification. Water treatment and conditioning. Saline water conversion
Q Science > QD Chemistry > QD1-999 Chemistry > QD450-801 Physical and theoretical chemistry
Department: SCHOOL > School of Science and Technology
Depositing User: ADMIN ADMIN
Date Deposited: 09 Oct 2012 16:17
Last Modified: 20 Oct 2017 13:18

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