The study of the sorption mechanism of ions copper and lead by bentonite clay
Abstract
The study adsorption of copper ions and lead by bentonite clays Zyriansky deposits as a function
of contact time, pH and temperature. It is established that silanol and alyuminolnye groups clays are
involved in ion exchange and complex formation with heavy metal ions in the dependence by pH
dominates a particular process. Studied the process adsorption of ions of copper and lead from equimolar
binary solutions. With increasing temperature from 293 K to 333 K adsorption of ions on the clay
increases.The nature of the sorption isotherms is independent of temperature in the selected interval.
Proposed mechanisms of ion sorption Cu (II) and Pb (II)
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References
процессы в природоохранных технологиях / Lambert Academic Publishing, 2011, 176
2. Brindley G., Penn State Univ., University Park, PA, USA., ICDD Grant-in- Aid,
(1977)
3. Wu X.L., Zhao D., Yang S.T.. Impact of solution chemistry conditions on the sorption
behavior of Cu(II) on Lin'an montmorillonite // Desalination 269 (2011) 84–91
4. Никифорова Т.Е., Козлов В.А., Модина Е.А. Cольватационно-координационный
механизм сорбции ионов тяжелых металлов целлюлозосодержащим сорбентом из
водных сред // Химия растительного сырья. 2010. №4. с. 23–30.
5. Yan L., Shan X., Wen B., Owens G. Adsorption of cadmium onto Al13-pillared acidactivated
montmorillonite // Journal of Hazardous Materials 156 (2008) 499–508
6. Ларионов Н.С., Боголицын К.Г., Богданов М.В., Кузнецова И.А. Характеристика
сорбционных свойств верхового торфа по отношению к d- и p-металлам // Химия
растительного сырья. 2008. №4. с. 147–152.