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

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, i...

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Bibliographic Details
Published inEnergies (Basel) Vol. 13; no. 18; p. 4895
Main Authors Utomo, Joseph Christian, Kim, Young Mo, Cho, Hyun Uk, Park, Jong Moon
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2020
Subjects
Algae
Animal wastes
Aquatic microorganisms
Biodiesel fuels
Biomass
Chemical oxygen demand
Design of experiments
Dilution
Feasibility studies
Genetic testing
Light
Lipids
microalgae
microbial community
Municipal wastewater
Nitrogen
Nutrient removal
Pork industry
Production processes
Scenedesmus rubescens
Swine
swine wastewater
Waste management
Wastewater
Wastewater dilution
Water treatment
South Korea
United States > US
Germany
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Summary: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 NH4+ 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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13184895