TY - JOUR AU - Mihaly-Cozmuta, Leonard AU - Visan, Teodor AU - Mihaly-Cozmuta, Anca AU - Varga, Camelia AU - Viman, Vasile AU - Vatca, Gheorghe PY - 2005 TI - Energetic Aspects Related to Heavy Metals Adsorption on the Surface of Volcanic Tuff I. The Influence of Activation Parameters in Cu2+ Adsorption JF - American Journal of Environmental Sciences VL - 1 IS - 2 DO - 10.3844/ajessp.2005.159.163 UR - https://thescipub.com/abstract/ajessp.2005.159.163 AB - The article develops some physico-chemical aspects presented along of copper ions adsorption in treatment of wastewaters using volcanic tuff. In the experiments volcanic tuff from Stoiana Pâglişa (Romania) has been used. Different concentrations of NaCl and HCl solutions were used for activation of tuff. The increase of activation solutions' concentrations indicates an intensification of specific adsorption of copper as consequence of energetic changes of the active centers spread on the tuff surface.