Adsorption of Dye Over Lignin Obtained from Wastewater Separation
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Creator Visanu Tanboonchuy
Title Adsorption of Dye Over Lignin Obtained from Wastewater Separation
Contributor Pummarin Khamdahsag, Thitisuda Jarichanon, Jakkapop Phanthasri, Suttikorn Suwannatrai and Bhuckchanya Pangkumhang
Publisher King Mongkut's Institute of Technology Ladkrabang
Publication Year 2564
Journal Title Current Applied Science and Technology
Journal Vol. 21
Journal No. 1
Page no. 165-175
Keyword adsorption, dye, iron (III)trimesic, lignin, reactive red-120
URL Website https://www.tci-thaijo.org/index.php/cast
Website title https://www.tci-thaijo.org/index.php
ISSN 2586-9396
Abstract Lignin is a major by-product problem for the pulp and paper industry. Inour previous work, lignin was successfully separated from alkali lignin wastewater usingiron (III) trimesic (Fe-BTC). This separationresulted in three layers: supernatant, lignin sludge, and Fe-BTC powder. In this study, the lignin separated by Fe-BTC (LSF)was expected to be used as an adsorbent for reactive red-120 dye (RR-120) removal.The LSF morphology was characterized by scanning electron microscope and energy dispersive X-ray spectrometer(SEM-EDS),the specific surface area was analyzed by Brunauer-Emmett-Teller (BET)method,and the functional groups were investigatedby Fourier transform infrared (FTIR)spectrometer. The removal performance of LSF over RR-120 was approximately 35% in 60 min. The maximum adsorption capacity of LSF for RR-120 was found to be 10.363mg/g. The adsorption kinetic of RR-120 removal fitted well with the pseudo-second-order kinetic model. The adsorption isotherm model of LSF also fitted with the Langmuir isotherm model. This research suggests the high potentialof LSF as a lignin-based adsorbent agent for RR-120 removal in water.
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