Dynamic adsorption and regeneration studies of acid yellow 17 using activated carbon
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Date
2018-06
Authors
Rosmaliza Zuraida Yaacob
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Abstract
The continuous fixed bed adsorption has been proposed as an effective method
for the removal of pollutants from the waste water in industrial applications. In this work,
the real intention of the study was to investigate the effectiveness of Acid Yellow 17 (AY
17) dye removal onto non-modified granular coconut shell activated carbon (GCSAC) in
fixed-bed column. The influence of important parameters such as initial dye concentration
(10-50 mg/L), feed flow rate (10-30 mL/min) and bed height (2-4 cm) on the behaviour
of the breakthrough curves and adsorption performance was studied. The results indicated
that the breakthrough curves were dependent on initial concentration, feed flow rates of
AY 17 dye solution and bed height. The adsorption capacity was recorded at lowest flow
rate, highest initial concentration and bed height and was found to be 5.58 mg/g. Thomas,
Adams-Bohart, Yoon-Nelson, Wolborska and BDST model were selected to analyse the
performance of the column adsorption. The adsorption capacity, rate constant and non-linear coefficient of determination (r2) of each model was calculated. Thomas, Yoon-Nelson and BDST model fitted well the adsorption data compared to Adams-Bohart or
Wolborska model. The results indicated that the GCSAC was shown to be suitable
adsorbent for adsorption of AY 17 dye using fixed-bed adsorption column.