Development of a ceramic adsorbent for the removal of 2-methylisoborneol from aqueous solution

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• 作者：Qiang&#xA0 ; Xue^a ; Rongzhi&#xA0 ; Chen^a ; Meena Kishore&#xA0 ; Sakharkar^a ; Motoo&#xA0 ; Utsumi^a ; Miao&#xA0 ; Li^b ; Kazuya&#xA0 ; Shimizu^c ; Zhenya&#xA0 ; Zhang^a ; Norio&#xA0 ; Sugiura^a ; &#xA0 ; ^{qiangxueflash@gmail.com}
• 关键词：Adsorption kinetics ; Ceramic adsorbent ; Musty odor ; Water treatment ; 2-Methylisoborneol
• 刊名：Desalination
• 出版年：2011
• 出版时间：17 October 2011
• 年：2011
• 卷：281
• 期：Complete
• 页码：293-297
• 全文大小：1068 K

文摘

Removal of 2-methylisoborneol (2-MIB), a common musty odor compound, by a novel ceramic adsorbent (CA), developed with a mixture of akadama mud, wheat starch, and Fe₂O₃ is presented. The physicochemical characteristics of the CA are examined with scanning electron microscope (SEM), Energy Dispersive X-ray (EDX) and gas adsorption porosimetry analyses. The effects of initial 2-MIB concentration, contact time and initial solution pH are investigated. It is observed that the adsorption of 2-MIB by CA occurs by a pseudo-first-order mechanism. CA exhibits high removal efficiency for 2-MIB in both high (600 ng/L) and low (200 ng/L) initial 2-MIB concentrations at room temperature (25 ¡ãC) and can adapt to a wide range of pH (2?2) for 2-MIB adsorption. Over 80 % of 2-MIB is removed by the CA within 600 min at an initial concentration of 200 ng/L with 20 g/L of CA dose. High regeneration performance shows that CA has great potential for reuse. These results suggest that the developed CA could be a promising material for effective and rapid removal of musty odor compounds in drinking water. Data on the adsorption kinetics and mechanism of adsorption are also presented.