Low-Cost Biochar Derived from Bamboo Waste for Removal of Heavy Metal in Aqueous Solution

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dc.contributor.authorDusit Angthararuk
dc.contributor.authorSasamol Phasuk
dc.contributor.authorPannraphat Takolpuckdee
dc.contributor.correspondenceD. Angthararuk; Faculty of Science and Technology, Valaya Alongkorn Rajabhat University under the Royal Patronage, Pathum Thani, 13180, Thailand; email: dusit_ang@dusit.ac.th
dc.date.accessioned2025-03-10T07:35:06Z
dc.date.available2025-03-10T07:35:06Z
dc.date.issued2022
dc.description.abstractThis study assessed the adsorption capacity of heavy metals such as lead (Pb), copper (Cu) and zinc (Zn) in the aqueous solution of biochar. Biochar was obtained from bamboo handicraft scraps by a pyrolysis method and was used as an economical absorbent. The bamboo biochar was characterized by scanning electron microscopy coupled with energy-dispersive x-ray spectroscopy (SEM-EDS) and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). The parameters such as contact time, biochar dosage, pH of the initial solution, and initial concentration of metal ions affected sorption capacity were investigated. Experiment results showed that the bamboo biochar mainly contained carbon and oxygen elements and a high number of C=O, C-O and O-H functional groups. The maximum adsorption uptake on biochar was Pb(II)>Zn(II)>Cu(II) under 1.0 g adsorbent L-1, 20 mg L-1 initial concentration of all metal ions, pH 4, contact time 120 min and at ambient temperature. From Langmuir isotherm fitting showed the maximum adsorption capacity was 41.15, 30.21 and 34.48 mg g-1 for Pb(II), Cu(II), and Zn(II), respectively. Pseudo-second order kinetic model can best describe the adsorption process of all ions in solution mainly via monolayer adsorption onto a homogeneous adsorbent surface and chemisorption as ion exchange, complexation, and surface mineral precipitation of metal ions. Appling the bamboo biochar for the removal of metal ions in groundwater found it was able to eliminate manganese at more than 95% within an hour of contact time. All research findings suggest that bamboo biochar has broad potential for water purification applications. © 2022, Research and Development Institute Suan Dusit University. All rights reserved.
dc.identifier.citationJournal of Food Health and Bioenvironmental Science
dc.identifier.issn26300311
dc.identifier.scopus2-s2.0-85207254143
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/4604
dc.languageEnglish
dc.publisherResearch and Development Institute Suan Dusit University
dc.rights.holderScopus
dc.subjectBamboo biochar
dc.subjectGroundwater
dc.subjectHeavy metal
dc.subjectRemoval
dc.titleLow-Cost Biochar Derived from Bamboo Waste for Removal of Heavy Metal in Aqueous Solution
dc.typeArticle
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85207254143&partnerID=40&md5=3b87ee62893f5dcb33847adb81e93e97
oaire.citation.endPage42
oaire.citation.issue2
oaire.citation.startPage34
oaire.citation.volume15
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