1. OPTIMIZATION OF GOLD SORPTION FROM AMMONIACAL THIOSULPHATE SOLUTION ON ANION EXCHANGE FIBER USING TAGUCHI EXPERIMENTAL DESIGN. Authors: EMILIA NEAG, ANAMARIA IULIA TÖRÖK, ZAMFIRA DINCA, MARIN SENILA, CERASEL VARATICEANU, ERIKA ANDREA LEVEI, EKATERINA SHILOVA, FRANCOISE BODENAN.2. REMOVAL OF RHODAMINE FROM AQUEOUS SOLUTIONS USING NATURAL ZEOLITE. Authors: LACRIMIOARA SENILA, EMILIA NEAG, DANIELA ALEXANDRA SCURTU, OANA CADAR, ANCA BECZE, CALIN HOREA TOMOIAG, MARIN SENILA.3. NUTRIENT AND ORGANIC MATTER REMOVAL FROM CHICKEN MANURE LEACHATE USING CHLORELLA SPP. . Authors: ZAMFIRA DINCA, MARIA-ALEXANDRA HOAGHIA, ANAMARIA IULIA TÖRÖK, ENIKO KOVACS, OANA CADAR, EMILIA NEAG, CECILIA ROMAN.