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

Authors

  • Nguyen Van Thuan Faculty of Environment & Natural Resources, Ho Chi Minh city University of Technology
  • Ngo Thi Thanh Thuy Faculty of Environment & Natural Resources, Ho Chi Minh city University of Technology
  • Nguyen Hong Hai Faculty of Environment & Natural Resources, Ho Chi Minh city University of Technology
  • Nguyen Cong Nguyen Faculty of Environment and Natural Resources, Da Lat University
  • Xuan-Thanh Bui * Faculty of Environment & Natural Resources, Ho Chi Minh city University of Technology

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.

Keywords:

biomass production, human urine, membrane photobioreactor, microalgae, nutrient removal

DOI:

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

Classification number

3.5

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Published

2018-12-15

Received 15 August 2018; accepted 31 October 2018

How to Cite

Nguyen Van Thuan, Ngo Thi Thanh Thuy, Nguyen Hong Hai, Nguyen Cong Nguyen, & Xuan-Thanh Bui. (2018). Influence of microalgae retention time on biomass production in membrane photobioreactor using human urine as substrate. Vietnam Journal of Science, Technology and Engineering, 60(4), 66-70. https://doi.org/10.31276/VJSTE.60(4).66-70

Issue

Section

Life Sciences

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