ORIGINAL RESEARCH
A New Montmorillonite/Humic Acid Complex
Prepared in Alkaline Condition to Remove
Cadmium in Waste Water
Xiangfeng Zeng1,2,3, Zuwei Wang2, Zhanhua Ji1,2,3, Shuhe Wei1
Pol. J. Environ. Stud. 2015;24(2):817-821
ORIGINAL RESEARCH
Zinc Pollution of the Przemsza River and its Tributaries
F. Pistelok*, W. Galas**
Pol. J. Environ. Stud. 1999;8(1):47-53