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8165324 
Journal Article 
Removal of manganese from water using modified natural zeolite 
Bakalár, T; Pavolová, H 
2018 
11 
12 
2045-2059 
English 
The content of manganese in natural water is relatively high in Slovakia. For this reason research is concentrated on technologies which are efficient, low-cost and easy to use. In this study use of specific sorbents based on zeolite, ZeoCem Mn dark, light and mixed, were investigated to lower the high manganese level below the limit for drinking water. Zeolites are used for Mn(II) removal with different removal capacities. The modified zeolite was characterised, used in batch sorption experiments and evaluated using three isotherms. The samples were agitated for 2 hours at 200 min-1, 25 °C, and the initial pH of the solution 7. The maximum sorption capacities of ZeoCem Mn dark, light and mixed were 3.057, 2.143 and 2.105, respectively, implying that the ZeoCem Mn grains separated by colour adsorbed higher amount of Mn than the original ZeoCem Mn grains. Dark zeolite grains adsorbed more Mn than light grains. © International Research Publication House. 
Adsorption; Isotherm; Manganese; Zeolite