| 초록 |
High CO2-emitting dairy industry obligated to treat waste and improve its carbon footprints. Mixotrophic cultivation strategy of microalgae enables to treat dairy wastes and mitigate CO2 for sustainable dairy economy. This study developed a biochemical process for organic whey with minimum dilution to avoid environmental burden. To make whey suitable for algae cultivation, it was pretreated to remove polymers, and organic and inorganic overloads via acid hydrolysis, chemical flocculation and struvite formations with lowest dilution possible. 40% pretreated whey was most productive for biomass and lipid fractions respectively 4.54 and 1.80 g/L with daily productivities 0.50 and 0.20 g/L/day, however 25% to reach adequate treatment. Overall, biochemical treatment was effective to remove respectively 99.7 and 91–100% of organic and inorganic pollutants, however algal treatment alone exhibited maximum 92.6 and 48.5–98.4% removals from both treatment ratios promising finding of this work. |
