Wong, Ada Chu Wen and Lawal, Sirajo and Ahmad Zaini, Muhammad Abbas (2022) Optimizing the two-stage adsorber of NaOH-activated coconut shell carbon for methylene blue removal. International Journal of Chemical Reactor Engineering, 20 (9). pp. 903-910. ISSN 1542-6580
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Official URL: http://dx.doi.org/10.1515/ijcre-2021-0220
Abstract
This work was aimed at optimizing the adsorbent mass and contact time and evaluating the performance of two-stage batch adsorber of NaOH-activated coconut shell carbon for methylene blue removal. To decrease the dye concentration from 1000 to 89.4 mg/L at any effluent volumes, the two-stage adsorber displays a small mass saving of 0.33% because of the high adsorbent affinity towards methylene blue at 1.80 L/mg. Meanwhile, the contact time can be minimized by 97.6% as opposed to that in one-stage adsorber. The sensitivity analysis of affinity on mass minimization shows a significant saving of 28.5% when the affinity is reduced to 0.01 L/mg. The response surface methodology was used to optimize the two-stage absorber for methylene blue removal, wherein the most significant parameter is the contact time.
Item Type: | Article |
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Uncontrolled Keywords: | activated carbon, adsorption, methylene blue |
Subjects: | T Technology > TP Chemical technology |
Divisions: | Chemical and Energy Engineering |
ID Code: | 101015 |
Deposited By: | Narimah Nawil |
Deposited On: | 23 May 2023 10:36 |
Last Modified: | 23 May 2023 10:36 |
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