D. S. Salavatova, D. A. Bychkov, R. V. Fiaizullina
{"title":"Mercury(II) Adsorption on the Maikop Series Rocks and Mud Volcano Clays","authors":"D. S. Salavatova, D. A. Bychkov, R. V. Fiaizullina","doi":"10.3103/s014587522470011x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The acid–base properties of the surface of Maikop series clays and mud volcano clays, as well as their adsorption properties with respect to mercury(II) ions, were studied. It is shown that pH<sub>PZC</sub> for the former is 7.1 on average; for the latter, 9.0. The pH<sub>PZC</sub> value for mud volcano clays is consistent with the pH values in the waters of mud volcanoes of the Kerch–Taman region. When the mass ratio of the sorbent and solution is 1 : 900, adsorption equilibrium occurs after 4 days with active stirring. Experimental data on mercury adsorption from NaCl–NaHCO<sub>3</sub> solution on natural sorbents are best described by the Redlich–Peterson and Toth equations. The process of mercury adsorption on clays of the Maikop series is more intense than that on mud volcano clays.</p>","PeriodicalId":44391,"journal":{"name":"Moscow University Geology Bulletin","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Moscow University Geology Bulletin","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s014587522470011x","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The acid–base properties of the surface of Maikop series clays and mud volcano clays, as well as their adsorption properties with respect to mercury(II) ions, were studied. It is shown that pHPZC for the former is 7.1 on average; for the latter, 9.0. The pHPZC value for mud volcano clays is consistent with the pH values in the waters of mud volcanoes of the Kerch–Taman region. When the mass ratio of the sorbent and solution is 1 : 900, adsorption equilibrium occurs after 4 days with active stirring. Experimental data on mercury adsorption from NaCl–NaHCO3 solution on natural sorbents are best described by the Redlich–Peterson and Toth equations. The process of mercury adsorption on clays of the Maikop series is more intense than that on mud volcano clays.
期刊介绍：
Moscow University Geology Bulletin is the journal that mainly publishes scientific articles, short reports of graduate students, and reviews. Publications made by the members of the Faculty of Geology of the Moscow State University and their collaborators are published. Publications encompass all branches of geology.
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