The removal of metals and ammonium by natural glauconite |
| |
| Institution: | 1. Department of Geology and Mineral Exploration, Institute of Natural Resources, Tomsk Polytechnic University, 634050 Tomsk, Russia;2. Department of Earth Sciences, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India;3. Department of Plant Physiology and Biotechnology, Biological Institute, Tomsk State University, 634050 Tomsk, Russia;4. Lab №12, Institute of High Technology Physics, Tomsk Polytechnic University, 634050 Tomsk, Russia;1. Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Skłodowska University, M. Skłodowskiej Curie 3 Sq., 20-031 Lublin, Poland;2. Institute of Electrical Engineering and Electrotechnologies, Lublin University of Technology, Nadbystrzycka 38a, 20-618 Lublin, Poland;1. Division for Geology, School of Earth Sciences & Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia;2. Department of Earth Sciences, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India;3. Department of Plant Physiology and Biotechnology, Biological Institute, Tomsk State University, 634050 Tomsk, Russia;4. Siberian Research Institute of Agriculture and Peat, Branch of the Siberian Federal Science Centre of Agrobiotechnologies, 3 Gagarinа st., 634050 Tomsk, Russia;5. Division for Materials Science, School of Advanced Manufacturing Technologies, Tomsk Polytechnic University, 30 Lenin Avenue, 634050 Tomsk, Russia;6. Institute of Strength Physics and Materials Science of Siberian, Branch of Russian Academy of Sciences, 2/4 pr. Akademicheskii, 634055 Tomsk, Russia;7. JSC TomskNIPIneft, 72 pr. Mira, 634027, Tomsk, Russia |
| |
| Abstract: | Glauconite deposits, naturally occurring aluminosilicates rich in iron and potassium, are abundant in New Jersey, Delaware, and Maryland. The presence of these deposits has been shown to be responsible for a high content of sodium in ground water for certain region of Maryland. The ammonium and metal (Pb, Zn, and Cd) removal capability was investigated in both batch and column reactors using natural, NaCl- and NaOH-treated glauconite-bearing sand. Ammonium removal by glauconite is a typical ion exchange process. Both ion exchange and adsorption are responsible for matal removal. Important factors such as pH, sample source, and method of pretreatment were studied. The metal removal follows the order of Pb(II) > Zn(II) > Cd(II). The surface acidity of the glauconite is characterized by an acidmetric-alkalimetric titration. The acidity constants, pK1i, and pK2i, and 3.6 and 6.0, respectively. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
