Influence of microalgae retention time on biomass production in membrane photobioreactor using human urine as substrate

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Nguyen Van Thuan Ngo Thi Thanh Thuy Nguyen Hong Hai Nguyen Cong Nguyen Xuan-Thanh Bui

Abstract

Human urine is known as the excreta with a high concentration of nitrogen and phosphorus, causing eutrophication in water bodies. In this study, human urine was used to feed microalgae (Chlorella vulgaris) in a membrane photobioreactor (MPBR) at various microalgae retention times (MRTs) and hydraulic retention time (HRT) of 2 days to evaluate its biomass production. The results indicate that MPBR was operated under MRT of 2 to 5 days and HRT of 2 days, which performed the optimum condition with biomass productivity from 146.43±8.52 to 151.93±15.05 mg.l-1.day. Moreover, the MPBR using the urine as a nutrient source demonstrated the high performance in biomass production and strong growth of microalgae.

 

DOI: https://doi.org/10.31276/VJSTE.60(4).66-70

Article Details

How to Cite
VAN THUAN, Nguyen et al. Influence of microalgae retention time on biomass production in membrane photobioreactor using human urine as substrate. Vietnam Journal of Science, Technology and Engineering, [S.l.], v. 60, n. 4, p. 66-70, dec. 2018. ISSN 2525-2461. Available at: <http://vietnamscience.vn/index.php/VJSTE/article/view/134>. Date accessed: 26 mar. 2019.
Section
LIFE SCIENCES