Adsorption of Cu(II) from Aqueous Solution by Peanut Shell
A natural peanut shell was used as adsorbent for removal of Cu(Ⅱ) from aqueous solution. Optimum conditions for the elimination of Cu(Ⅱ) from aqueous solution were established by means of a batch adsorption technique. The applicability of the Langmuir and Freundlich adsorption isotherms for the present system was tested. The Langmuir adsorption capacity Qmax (mg/g) is 39.68 and the equilibrium constant b is 0.00776. The Freundlich adsorption capacity k is 0.978 and adsorption intensity n is 1.65. The goodness of fitness was obtained with the Langmuir and Freundlich adsorption isotherms from the equilibrium adsorption data.
Weiguo Pan, Jianxing Ren and Yongguang Li
Z. J. Gong et al., "Adsorption of Cu(II) from Aqueous Solution by Peanut Shell", Advanced Materials Research, Vols. 347-353, pp. 1852-1855, 2012