題名: Equilibrium sorption of anionic dye from aqueous solution by palm kernel fibre as sorbent
作者: Ofomaja, A.E.;Ho, Y.S.
貢獻者: Department of Biotechnology
關鍵詞: Biosorption;Adsorption;Isotherm;Dye;Palm kernel fibre;Agricultural waste 日期: 2007
上傳時間: 2009-12-15T05:24:30Z 出版者: Asia University
摘要: Palm kernel fibre was investigated for its ability to perform as a suitable sorbent for anionic dye from aqueous solution. The effect of sorbent dose and temperature was investigated using a batch sorption technique. The results revealed the potential of palm kernel fibre, an agricultural waste, as a low-cost sorbent for the anionic dye examined.
The isotherm data were closely fitted to the Langmuir equation and the dye sorption capacity of palm kernel fibre increased as the sorbent dose decreased. Maximum saturated monolayer sorption capacity of palm kernel fibre for 4-bromoaniline-azo-1,8-dihydronaphthalene-3,6-
disodiumsulphate was 38.6 mg/g. Thermodynamic parameters such as change in the free energy, the enthalpy, and the entropy were also evaluated. In addition, relationships between sorbent dose and Langmuir constants were developed and are presented.