Sorption of wastewater containing reactive red X-3B on inorgano-organo pillared bentonite |
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| Authors: | Xiu-qiong Zeng |
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| Institution: | (1) Department of Chemistry, Zhejiang University, Hangzhou, 310028, China |
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| Abstract: | Bentonite is a kind of natural clay with good exchanging ability. By exchanging its interlamellar cations with various soluble
cations, such as quaternary ammonium cations and inorganic metal ions, the properties of natural bentonite can be greatly
improved. In this study, hexadecyltrimethylammonium bromide (HDTMA), CaCl2, MgCl2, FeCl3, AlCl3 were used as organic and inorganic pillared materials respectively to produce several kinds of Ca-, Mg-, Fe-, Al-organo pillared
bentonites. Sorption of reactive red X-3B on them was studied to determine their potential application as sorbents in wastewater
treatment. The results showed that these pillared bentonites had much improved sorption properties, and that the dye solutions’
pH value had some effect on the performance of these inorgano-organo pillared bentonites. Isotherms of reactive X-3B on these
pillared bentonites suggested a Langmuir-type sorption mechanism.
Project supported by the Scientific Research Foundation for Returned Overseas Scholars and the National Natural Science Foundation
of China (No. 40576080) |
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| Keywords: | Reactive red X-3B Sorption Pillared Bentonite |
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