Synthesis, Characterization, Adsorption Isotherm, and Kinetic Study of Oil Palm Trunk-Derived Activated Carbon for Tannin Removal from Aqueous Solution

ACS Omega
Adeline LimJaka Sunarso

Abstract

Oil palm trunk (OPT) represents one of the five main oil palm biomass wastes with high carbon content that can be economically converted to a large surface area, porous activated carbon (AC) adsorbent to treat palm oil mill effluent wastewater in Indonesia and Malaysia. In the first portion of this work, the design of the experiment was used to determine the optimum set of synthesis parameters required to maximize the iodine number of AC [i.e., Brunauer-Emmett-Teller (BET) specific surface area indicator] prepared from OPT via chemical activation route using H3PO4. The iodine numbers of AC and AC yield were probed as the impregnation ratio, the activation time, and the activation temperature were varied in the range of 0.28-3.47, 5.68-69.32 min, and 379-521 °C, respectively. An impregnation ratio of 2.29, an activation time of 6 min, and an activation temperature of 450 °C were identified as the optimum set of synthesis parameters. In the second portion of the work, the AC synthesized using the optimum parameters were then characterized and tested as an adsorbent for tannin. N2 sorption results revealed that the AC exhibits type IV isotherm, that is, contains micropores and mesopores and displays a relatively high BET specific ...Continue Reading

References

Feb 8, 2006·Journal of Hazardous Materials·Yuh-Shan Ho
Oct 20, 2006·Bioresource Technology·N V FarinellaM A Z Arruda
Dec 7, 2010·Journal of Hazardous Materials·Hardiljeet K BoparaiDenis M O'Carroll
Aug 5, 2011·Journal of Hazardous Materials·Jianwei LinYunqing Xing
Dec 11, 2013·Journal of Environmental Management·Rafie Rushdy Mohammed, Mei Fong Chong

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membrane filtration
scanning electron microscopy

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