XANTHATE REMOVAL FROM WASTEWATER BY USING SILVER NANOPARTICLES – ZEOLITE COMPOSITE
Marinela Panayotova, Neli Mintcheva, Gospodinka Gicheva, Vladko Panayotov, Lubomir Djerahov, Bozhidar Ivanov
Pages: 58-67
Published: 1 Aug 2019
Views: 929
Downloads: 113
Abstract: Water from tailing ponds of mineral processing plants can be discharged to natural water bodies if the concentration of xanthates is below 1 mg/L. The paper presents the removal of potassium ethyl xanthate from model wastewater by silver nanoparticles-zeolite composite. The impact of adsorbent dose, initial pH value of polluted water and initial pollutant's concentration was investigated. The process kinetics is fast. The kinetics of the xanthate immobilization is best described by the pseudo second order model and the equilibrium - by the Langmuir adsorption isotherm. The material exhibits high capacity with respect to the pollutant when the latter is spiked into natural waters. Even more, over 75 % of the pollutant present in clarified real wastewater from zinc-lead ore flotation experiment have been removed in 120 min at adsorbent dose of 0.2 g/L.
Keywords: silver nanoparticles-zeolite composite, xanthate, wastewater
Cite this article: Marinela Panayotova, Neli Mintcheva, Gospodinka Gicheva, Vladko Panayotov, Lubomir Djerahov, Bozhidar Ivanov. XANTHATE REMOVAL FROM WASTEWATER BY USING SILVER NANOPARTICLES – ZEOLITE COMPOSITE. Journal of International Scientific Publications: Ecology & Safety 13, 58-67 (2019). https://www.scientific-publications.net/en/article/1001859/
© 2024 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
