1. CD2+ REMOVAL FROM SYNTHETIC WASTEWATERS USING SCENEDESMUS OPOLIENSIS GREEN ALGAE. Authors: TOTHMERESZ BELA, TONK SZENDE, SILVIA BURCĂ, PERNYESZI TIMEA, MARIA STANCA, CORNELIA MAJDIK, CERASELLA INDOLEAN.2. REMOVAL OF ZN2+ FROM SOME SYNTHETIC WASTEWATERS BY IMMOBILIZED SACCHAROMYCES CEREVISIAE CELLS. Authors: TOTHMERESZ BELA, TONK SZENDE, PERNYESZI TIMEA, CORNELIA MAJDIK, CERASELLA INDOLEAN, ANDRADA MĂICĂNEANU.