Development of an integrated treatment strategy for removal of ondansetron using simultaneous adsorption, oxidation and bioremediation technique

Abstract

The Ondansetron degradation by adsorption using activated carbon produced from coffee husk (CBH), chemical treatment by Ozone (O3) and biochemical treatment by A. faecalis JF339228 and E. aurantiacum has been investigated in the present study. The percentage removal of ondansetron from its synthetic aqueous solution of 800 ppm concentration using 2 g/l activated carbon, 5.2 g/h ozone treatment and biological treatment by A. faecalis JF339228 and E. aurantiacum in 72 h were 81.25%, 58.80%, 70.15%, and 65.12% respectively. Simultaneous treatment of adsorption and ozone treatment followed by biological treatment with A. faecalis JF339228 and E. aurantiacum has been employed in this study. The integrated treatment has shown a synergistic effect in the degradation of Ondansetron at minimum consumption of chemical and time. The percentage removal was observed to be 90% and 71% respectively where employment of biological process reduced the treatment cost. Therefore the integrated treatment system proved to be economical, efficient and partially eco-benign.