Using Kaolin in Reduction of Arsenic in Rice Grains: Effect of Different Types of Kaolin, pH and Arsenic Complex

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dc.contributor.authorSuteera Arnamwong
dc.contributor.authorParinda Suksabye
dc.contributor.authorPaitip Thiravetyan
dc.contributor.correspondenceP. Thiravetyan; School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand; email: paitip.thi@kmutt.ac.th
dc.date.accessioned2025-03-10T07:36:30Z
dc.date.available2025-03-10T07:36:30Z
dc.date.issued2016
dc.description.abstractKaolin was used as a soil amendment to study the effect of different types of kaolin, pH and arsenic complex on arsenic accumulation in rice grains from arsenic (As) contaminated soil. It was found that kaolin released soluble aluminium (Al) and silicon at a pH value of 3. As adsorption by crude kaolin was higher than by washed kaolin and treated kaolin due to the higher Al content found in crude kaolin. Furthermore, the addition of 5 % (w/w) crude kaolin in the solution of As-contaminated soil was able to reduce water-soluble As in the solution. In mesocosm experiments, As accumulation in rice grain was not found under the addition of kaolin conditions. Scanning electron microscopy with energy dispersive X-ray spectroscopy study found the crystallinity of Al-As complex in plant roots. This implies that while kaolin adsorbs As from As-contaminated soil, rice plants also simultaneously take up As and Al into their cells. This caused the decrease in As accumulation in rice grain. � 2016 Springer Science+Business Media New York.
dc.identifier.citationBulletin of Environmental Contamination and Toxicology
dc.identifier.doi10.1007/s00128-016-1740-8
dc.identifier.issn74861
dc.identifier.scopus2-s2.0-84962573549
dc.identifier.urihttps://repository.dusit.ac.th//handle/123456789/4825
dc.languageEnglish
dc.publisherSpringer New York LLC
dc.rights.holderScopus
dc.subjectAluminium (Al)
dc.subjectMesocosm
dc.subjectSilicon
dc.titleUsing Kaolin in Reduction of Arsenic in Rice Grains: Effect of Different Types of Kaolin, pH and Arsenic Complex
dc.typeArticle
mods.location.urlhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84962573549&doi=10.1007%2fs00128-016-1740-8&partnerID=40&md5=0815379eb46498ef53c6d4ec66038239
oaire.citation.endPage561
oaire.citation.issue4
oaire.citation.startPage556
oaire.citation.volume96
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