Biosorption of heavy metal copper (Cu2+) by Saccharomyces cerevisiae

4th International Seminar on Sustainable Urban Development

地球科学;经济学

Ririhena, S.A.J.^1 ; Astuti, A.D.^1 ; Fachrul, M.F.^1 ; Silalahi, M.D.S.^1 ; Hadisoebroto, R.^1 ; Rinanti, A.^1

Environmental Engineering Department, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia^1

关键词: Adsorption process;    Carboxyl groups;    Cell morphology;    Contact time;    Electroplating industry;    First order kinetics;    Freundlich isotherm;    S.cerevisiae;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/106/1/012090/pdf
DOI  :  10.1088/1755-1315/106/1/012090

来源: IOP

【 摘 要 】

This research aims to study the optimum effect of contact time and pH adsorption of copper (Cu2+) from electroplating industry waste by dried beer waste S.cerevisiae. This research conducted using batch culture with pH variation 2,3,4,5, and 6, contact time variation 60, 90, 120, 150, 180 minutes, 150 rpm at room temperature (± 28°C), initial Cu2+concentration 33,746 mg/l, and biosorbent mass 200 mg & 500 mg. The adsorption of heavy metal ions Cu2+occurs in all variations of pH and contact time at optimum pH. The optimum adsorption occurs at pH 4 with contact time 120 minutes for both 200 mg (41.60%) and 500 mg (61.04%) beer waste biosorbent. Cell morphology seen with Scanning Electron Microscope (SEM) analysis shows the change of cell wall that gets damaged from Cu2+adsorption. It also proved by the decreased concentration of initial high concentration carboxyl groups. The adsorption process of this research complies to Freundlich Isotherm with R2value closest to 1 and followed first order kinetic.