TY - JOUR
T1 - Thermally Treated Alum Sludge as Novel Adsorbent of Carbon Dioxide (CO2)
AU - Khim, Ong Keat AU - Yusuff, Soleha Mohamat AU - Yunus, Wan Mad Zin Wan AU - Rashid, Jahwarhar Izuan Abdul AU - Fitrianto, Anwar AU - Ahmad, Mansor AU - Ibrahim, Nor Azowa AU - Ahmad, Syed Mohd Shafiq Syed AU - Teoh, Chin Chuang
JO - Journal of Engineering and Applied Sciences
VL - 14
IS - 2
SP - 405
EP - 414
PY - 2019
DA - 2001/08/19
SN - 1816-949x
DO - jeasci.2019.405.414
UR - https://makhillpublications.co/view-article.php?doi=jeasci.2019.405.414
KW - Optimization
KW -fixed-bed
KW -adsorption
KW -carbon dioxide
KW -thermally treated sludge
AB - Dewatered alum sludge from drinking water treatment plants was exploited as carbon dioxide (CO2)
adsorbent in a fixed-bed (CO2)lumn system. In this study, the effects of 6 parameters including particle size of
adsorbent, heat treatment of adsorbent, adsorbents dosage, adsorption temperature, flow rate of adsorbate and
(CO2) ncentration on the fixed-bed adsorption of (CO2) were investigated using Response Surface Methodology 2 2
(RSM). The experimental data was successfully fitted with the regression model to identify the significant
parameters and predict the optimum value parameters for maximizing (CO2) adsorption capacity. Analysis of 2
Variance (ANOVA) revealed that (CO2) ncentration was the most significant factor influenced the (CO2) adsorption capacity. The experimental data of (CO2) adsorption capacity were in a good agreement with the 2
predicted data from the regression model. The highest fixed-bed (CO2) adsorption capacity of 10.028 mmol.g 2 –1 (441.24 mg.g–1) was achieved using 1 g of 450-500 μm of 800°C thermally treated alum sludge at (CO2) ncentration of 8000 mg.L–1 with a flow rate of 90 mL.min–1 at 25°C. The results suggested that thermally treated
alum sludge is a promising solid adsorbent for (CO2) capture.
ER -