Tags

Type your tag names separated by a space and hit enter

Human urine as a forward osmosis draw solution for the application of microalgae dewatering.
J Hazard Mater 2019; 378:120724JH

Abstract

Human urine is a unique solution that has the right composition to constitute both a severe environmental threat and a rich source of nitrogen and phosphorous. In fact, between 4-9% of urine mass consists of ions, such as K+, Cl-, Na+ or NH4+. Because of its high ionic strength, urine osmotic pressure can reach values of up to 2000 kPa. With this in mind, this work aimed to study the effectiveness of real urine as a novel draw solution for forward osmosis. Water flux, reverse nitrogen flux and membrane fouling were investigated using fresh or hydrolysed urine. Water flux as high as 16.7 ± 1.1 L m-2 h-1 was recorded using real hydrolysed urine. Additionally, no support layer membrane fouling was noticed in over 20 h of experimentation. Urine was also employed to dewater a Chlorella vulgaris culture. A fourfold increase in algal concentration was achieved while having an average flux of 14.1 L m-2 h-1. During the algae dewatering, a flux decrease of about 19% was noticed; this was mainly due to a thin layer of algal deposition on the active side of the membrane. Overall, human urine was found to be an effective draw solution for forward osmosis.

Authors+Show Affiliations

School of Civil and Environmental Engineering, University of Technology Sydney (UTS), City Campus, Broadway, NSW 2007, Australia.School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 44919, Republic of Korea.School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 44919, Republic of Korea.School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 44919, Republic of Korea.School of Civil and Environmental Engineering, University of Technology Sydney (UTS), City Campus, Broadway, NSW 2007, Australia.King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological & Environmental Science & Engineering Division (BESE), Thuwal 23955-6900, Saudi Arabia.King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological & Environmental Science & Engineering Division (BESE), Thuwal 23955-6900, Saudi Arabia.School of Civil and Environmental Engineering, University of Technology Sydney (UTS), City Campus, Broadway, NSW 2007, Australia. Electronic address: Hokyong.Shon-1@uts.edu.au.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31326765

Citation

Volpin, Federico, et al. "Human Urine as a Forward Osmosis Draw Solution for the Application of Microalgae Dewatering." Journal of Hazardous Materials, vol. 378, 2019, p. 120724.
Volpin F, Yu H, Cho J, et al. Human urine as a forward osmosis draw solution for the application of microalgae dewatering. J Hazard Mater. 2019;378:120724.
Volpin, F., Yu, H., Cho, J., Lee, C., Phuntsho, S., Ghaffour, N., ... Shon, H. K. (2019). Human urine as a forward osmosis draw solution for the application of microalgae dewatering. Journal of Hazardous Materials, 378, p. 120724. doi:10.1016/j.jhazmat.2019.06.001.
Volpin F, et al. Human Urine as a Forward Osmosis Draw Solution for the Application of Microalgae Dewatering. J Hazard Mater. 2019 Jun 3;378:120724. PubMed PMID: 31326765.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Human urine as a forward osmosis draw solution for the application of microalgae dewatering. AU - Volpin,Federico, AU - Yu,Hyeonjung, AU - Cho,Jaeweon, AU - Lee,Changsoo, AU - Phuntsho,Sherub, AU - Ghaffour,Noreddine, AU - Vrouwenvelder,Johannes S, AU - Shon,Ho Kyong, Y1 - 2019/06/03/ PY - 2019/01/07/received PY - 2019/05/31/revised PY - 2019/06/02/accepted PY - 2019/7/22/pubmed PY - 2019/7/22/medline PY - 2019/7/22/entrez KW - Draw solution KW - Forward osmosis KW - Human urine KW - Microalgae dewatering KW - Nutrient recovery SP - 120724 EP - 120724 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 378 N2 - Human urine is a unique solution that has the right composition to constitute both a severe environmental threat and a rich source of nitrogen and phosphorous. In fact, between 4-9% of urine mass consists of ions, such as K+, Cl-, Na+ or NH4+. Because of its high ionic strength, urine osmotic pressure can reach values of up to 2000 kPa. With this in mind, this work aimed to study the effectiveness of real urine as a novel draw solution for forward osmosis. Water flux, reverse nitrogen flux and membrane fouling were investigated using fresh or hydrolysed urine. Water flux as high as 16.7 ± 1.1 L m-2 h-1 was recorded using real hydrolysed urine. Additionally, no support layer membrane fouling was noticed in over 20 h of experimentation. Urine was also employed to dewater a Chlorella vulgaris culture. A fourfold increase in algal concentration was achieved while having an average flux of 14.1 L m-2 h-1. During the algae dewatering, a flux decrease of about 19% was noticed; this was mainly due to a thin layer of algal deposition on the active side of the membrane. Overall, human urine was found to be an effective draw solution for forward osmosis. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/31326765/Human_urine_as_a_forward_osmosis_draw_solution_for_the_application_of_microalgae_dewatering L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(19)30667-3 DB - PRIME DP - Unbound Medicine ER -