Activated Bentonite: Low Cost Adsorbent to Reduce Mercury Content in A Solution

M. Naswir, Yusnelti Desfaurnatalia, Lusi Septiarini, Y. Wibowo
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引用次数: 3

Abstract

The purpose of this study is to find the best activator for bentonite to reduce the mercury content in a solution. Bentonite was activated by HCl, H3PO4, NaCl, ZnCl2, NaOH and KOH use different concentration such as 0.5, 1.0 and 1.5M. Activated bentonite has been characterized by x-ray diffraction, scanning electron microscope with energy dispersive spectroscopy and atomic absorption spectrometry. Bentonite characterization showed that bentonite contains kaolinite, montmorillonite, quartz and cristobalite. Activated bentonite has bigger pores than natural bentonite. Atomic absorption spectrometry showed that H3PO4, HCl, NaCl, ZnCl2, NaOH and KOH can reduce the mercury around 99.99, 99.87, 97.48, 9.24, 99.81 and 99.86%. Thus, best activator for activated bentonite as a low-cost adsorbent is H3PO4.
活性膨润土:降低溶液中汞含量的低成本吸附剂
本研究的目的是寻找最佳的膨润土活化剂,以降低溶液中的汞含量。以0.5、1.0、1.5M不同浓度的HCl、H3PO4、NaCl、ZnCl2、NaOH和KOH对膨润土进行活化。利用x射线衍射、扫描电镜能谱和原子吸收光谱对活化膨润土进行了表征。膨润土的表征表明,膨润土中含有高岭石、蒙脱石、石英和方英石。活化膨润土比天然膨润土具有更大的孔隙。原子吸收光谱分析表明,H3PO4、HCl、NaCl、ZnCl2、NaOH和KOH对汞的还原效果分别为99.99、99.87、97.48、9.24、99.81和99.86%。因此,活化膨润土作为低成本吸附剂的最佳活化剂是H3PO4。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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