SHORT COMMUNICATION
Influence of Modified Coal Fly Ash
on Its Cation Exchange Capacities
Huaigang Cheng, Huiping Song, Fangbin Xue, Xiaojing Chen, Fangqin Cheng
Pol. J. Environ. Stud. 2014;23(4):1307-1312
ORIGINAL RESEARCH
Characterization of Opoka as a Basis for its Use
in Wastewater Treatment.
Z. Brogowski1 , G. Renman2*
Pol. J. Environ. Stud. 2004;13(1):15-20