Biological Pretreatment of a Beverage Waste Using Yeast Isolated from the Factory Sludge (RESEARCH NOTE)

The beverage industry has been a heavy producer of organic pollution. The major contaminants found in waste are biodegradable organic compounds, volatile organic compounds, toxic metals, and recalcitrant xenobiotics, suspend solids, nutrients (Nitrogen and Phosphor) Microbial pathogens and parasites. Activated sludge flocs contain a wide range of microorganisms such as bacteria, Fungi, yeast, viruses, and protozoa. In this study, we isolated some strains of yeasts from the factory sludge. More than ۵۰ strains of yeast were selected. Among them ۱۲ strains had a high removal of TOC.Yeast No. ۱۱ (Y-۱۱) has shown an overall efficiency of ۸۷.۵% in terms of TOC removal.

Keywords:

Beverage Wastewater , Activated sludge , Total organic carbon (TOC) , Microorganisms , Yeasts , Bioagumentation