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All Journal Journal of Chemical Engineering Research Progress
O, Jin Song
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Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology

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Adsorption of TBP from wastewater using lignite-derived activated carbon Kim, Guk Chol; Kim, Jong Hyok; Choe, Yong A.; O, Jin Song
Journal of Chemical Engineering Research Progress 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/jcerp.20715

Abstract

This study aimed to describe the adsorption behavior of tributyl phosphate on carbonaceous GAC and determine whether it might be more promising than conventional inorganic adsorbents in the adsorption treatment of organic wastewater. This carbonaceous granular activated carbon (GAC) was prepared by steam activation of crushed and carbonized lignite. It has a well-developed pore structure, with about 20% of the pores being micropores (<1.7 nm), 65% mesopores (2-30 nm), and 15% macropores (>50 nm). Moreover, the surface contains functional groups such as -OH, C=C, and C-O-C. The higher the solid-liquid ratio (SLR), the higher the TBP adsorption amount and adsorption rate of carbonaceous GAC. At a SLR of 1:100, the TBP adsorption capacity of carbonaceous GAC with lignite is 38.7 mg/g, the adsorption rate is 96.2%, and under the same conditions, commercial coconut-shell GAC is 39.8 mg/g and 99.6%. The adsorption equilibrium time was 120 min. The cost of the proposed carbonaceous GAC is less than one-fifth that of imported commercial coconut shell GAC, indicating its superior applicability and affordability.
Co-Authors Choe, Yong A. Kim, Guk Chol Kim, Jong Hyok