The Characteristic and Activation of Mixed Andisol Soil/Bayat Clays/Rice Husk Ash as Adsorbent of Heavy Metal Chromium (Cr)

International Conference on Advanced Materials for Better Future 2016

Pranoto^1 ; Sajidan^2 ; Suprapto, A.^3

Chemistry Department, Mathematic and Natural Science Faculty, Sebelas Maret University, Surakarta, Indonesia^1

Biology Department, Teacher Training and Education Faculty, Sebelas Maret University, Surakarta, Indonesia^2

Post Graduate Program of Master in Environmental Science, Sebelas Maret University, Surakarta, Indonesia^3

关键词: Activation temperatures;    Adsorption capacities;    Adsorption conditions;    Atomic absorption spectroscopy;    Freundlich equations;    Metal concentrations;    Sorption isotherms;    Total dissolved solids;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/176/1/012022/pdf
DOI  :  10.1088/1757-899X/176/1/012022

来源: IOP

【 摘 要 】

Chromium (Cr) concentration in water can be reduced by adsorption. This study aimed to determine the effect of Andisol soil composition/Bayat clay/husk ash, activation temperature and contact time of the adsorption capacity of Cr in the model solution; the optimum adsorption conditions and the effectiveness of ceramic filters and purifiers to reduce contaminant of Cr in the water. The mixture of Andisol soil, Bayat clay, and husk ash is used as adsorbent of metal ion of Cr(III) using batch method. The identification and characterisation of adsorbent was done with NaF test, infrared spectroscopy (FTIR), X-ray diffraction (XRD). Cr metal concentrations were analyzed by atomic absorption spectroscopy. Sorption isotherms determined by Freundlich equation and Langmuir. The optimum conditions of sorption were achieved at 150°C activation temperature, contact time of 30 minutes and a composition Andisol soil / Bayat clay / husk ash by comparison 80/10/10. The results show a ceramic filter effectively reduces total dissolved solids (TDS) and Chromium in the water with the percentage decrease respectively by 75.91% and 9.44%.