Process optimization for Zn (II) removal by activated carbon prepared from corncob via physiochemical activation
The purpose of this research is to obtain optimal activation conditions for activated carbon prepared from rice husk (RHAC) using response surface methodology (RSM). Central composite design (CCD) was used to determine the effects of the three preparation variables; activation temperature, activation time and ZnCl2: char impregnation ratio (IR) on RHAC yield and percentage of Zn (II) removal. Based on the CCD, two quadratic models were developed for both responses. The most influential factor on each experimental design response a , materials such as industrial by-products and agricultural wastes have been used as activated carbon precursor for the Zn (II) removal as well as other metal ions from water systems [4-6]. was identified from the analysis of variance (ANOVA). The optimum conditions for RHAC were activation temperature of 500oC, activation time of 1.71 h and IR of 1.04 resulting in 34.21 % RHAC yield and 40.87 % Zn (II) removal.
Authors
Abstract
The purpose of this research is to obtain optimal activation conditions for activated carbon prepared from rice husk (RHAC) using response surface methodology (RSM). Central composite design (CCD) was used to determine the effects of the three preparation variables; activation temperature, activation time and ZnCl2: char impregnation ratio (IR) on RHAC yield and percentage of Zn (II) removal. Based on the CCD, two quadratic models were developed for both responses. The most influential factor on each experimental design response a , materials such as industrial by-products and agricultural wastes have been used as activated carbon precursor for the Zn (II) removal as well as other metal ions from water systems [4-6]. was identified from the analysis of variance (ANOVA). The optimum conditions for RHAC were activation temperature of 500oC, activation time of 1.71 h and IR of 1.04 resulting in 34.21 % RHAC yield and 40.87 % Zn (II) removal.
Citation
DATO IR. DR. HJ. NASEHIR KHAN BIN E.M YAHAYA, MUHAMAD FAIZAL PAKIR MOHAMED LATIFF, ISMAIL ABUSTAN, OLUGBENGA SOLOMON BELLO. 2010. Process optimization for Zn (II) removal by activated carbon prepared from corncob via physiochemical activation. Digital NAHRIM Publication Repository.