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Selected elements cations exchange in acidic medium on sorbents surface based on modified brown coal

Author

Listed:
  • Stempkowska Agata

    (Dr. inż., AGH Akademia Górniczo-Hutnicza, Wydział Górnictwa i Geoinżynierii, Kraków, Poland)

  • Izak Piotr

    (Dr. hab. inż., AGH Akademia Górniczo-Hutnicza, Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Poland)

  • Mastalska-Popławska Joanna

    (Dr. AGH Akademia Górniczo-Hutnicza, Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Poland)

Abstract

Studies on the sorption and desorption of selected Na+, Ca2+, Mg2+, Mn2+, Cu2+ and Cr3+ cations by materials based on modified brown coal were carried out. The chemical modification of the sorbent material consisted of grinding involving different inorganic substances and organic polymers. Samples were subjected to chemical modification at elevated temperatures for several hours. For comparative purposes, as apart from brown coal, pure humic acids are known for the highest cations exchange capacity, samples of brown coal before and after purification were also analyzed. The ion capacity was determined under static conditions, measuring the difference in the concentration of cations in the sorbent before and after sorption and then after rinsing the sorbent with distilled water (A), and after the desorption process with hydrochloric acid (B).

Suggested Citation

  • Stempkowska Agata & Izak Piotr & Mastalska-Popławska Joanna, 2017. "Selected elements cations exchange in acidic medium on sorbents surface based on modified brown coal," Gospodarka Surowcami Mineralnymi / Mineral Resources Management, Sciendo, vol. 33(1), pages 139-150, March.
    • Handle: RePEc:vrs:gosmin:v:33:y:2017:i:1:p:139-150:n:2
    DOI: 10.1515/gospo-2017-0002
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