Evaluation of Scenedesmus rubescens for Lipid Production from Swine Wastewater Blended with Municipal Wastewater

Joseph Christian Utomo, Young Mo Kim, Hyun Uk Cho and Jong Moon Park
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Joseph Christian Utomo: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, Korea
Young Mo Kim: Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul 04763, Korea
Hyun Uk Cho: Department of Marine Environmental Engineering, Gyeongsang National University, Gyeongnam 53064, Korea
Jong Moon Park: Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, Korea

Energies, 2020, vol. 13, issue 18, 1-11

Abstract: This study examined the feasibility of using non-sterilized swine wastewater for lipid production by an isolated microalga, Scenedesmus rubescens . Different dilution ratios using municipal wastewater as a diluent were tested to determine the suitable levels of microalgal growth in the wastewaters, its nutrient removal, and its lipid production. The highest lipid productivity (8.37 mg/L/d) and NH 4 + removal (76.49%) were achieved in swine wastewater that had been diluted to 30 times using municipal wastewater. Various bacteria coexisted in the wastewaters during the cultivation of S. rubescens . These results suggest the practical feasibility of a system to produce lipids from swine wastewater by using microalgae.

Keywords: swine wastewater; microalgae; microbial community; lipids (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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