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Mixotrophic microalgae에 의한 음폐수 소화액 고도처리에 있어 유기산이 microalgae의 성장 및 질소, 인 제거에 미치는 영향 KCI 등재
Effects of volatile fatty acids on microalgae growth and N, P consumption in the advanced treatment process of digested food waste leachate by mixotrophic microalgae
pp.357-362
Acetate, propionate, butyrate are the major soluble volatile fatty acids metabolites of fermented food waste leachates. This work investigate the effects of volatile fatty acid on the growth rate and NH4-N, PO4-P removal efficiency of mixotrophic microalgae Chlorella vulgaris to treat digested food waste leachates. The results showed that acetate, propionate and butyrate were efficiently utilized by Chlorella vulgaris and microalgae growth was higher than control condition. Similar trends were observed upon NH4-N and PO4-P consumption. Volatile fatty acids promoted Chlorella vulgaris growth, and nutrient removal efficiencies were highest when acetate was used, and butyrate and propionate showed second and third. From this work it could be said that using mixotrophic microalgae, in this work Chlorella vulgaris, fermented food waste leachates can be treated with high efficiencies.
