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Author:

Ren, Jiawei (Ren, Jiawei.) | Hao, Derek (Hao, Derek.) | Jiang, Jiaxi (Jiang, Jiaxi.) | Phuntsho, Sherub (Phuntsho, Sherub.) | Freguia, Stefano (Freguia, Stefano.) | Ni, Bing-Jie (Ni, Bing-Jie.) | Dai, Pan (Dai, Pan.) | Guan, Jing (Guan, Jing.) | Shon, Ho Kyong (Shon, Ho Kyong.)

Indexed by:

EI Scopus SCIE

Abstract:

Urine with its abundant macronutrients (N-P-K) is an ideal resource for the production of fertiliser. However, the odor and pathogens in the raw urine must be removed to meet the public acceptance of urine collection systems and to enable its safe reuse as a fertiliser. In this work, real urine was collected and treated through a pilot-scale gravity-driven membrane bioreactor (GDMBR) to remove the malodorous organics and to nitrify almost 50% of the ammonia into nitrate. The stablised urine was subsequently distilled via low-cost heat localized solar evaporation (HLSE) to produce a non-odorous solid fertiliser. The developed HLSE with a small footprint can attract bulk solution into a vertical insulated space and quickly heat it up to 68 degrees C within 1 h. The HLSE process had vapour flux at 1.3 kg m- 2 h-1 as well as high solar to vapour conversion efficiency at 87%. Based on the EDX mapping and XRD analysis, the generated crystals are mainly NaNO3, NH4Cl, NaCl, NH4H2PO4 and K2HPO4, which are ideal nutrients for vegetation. In this study, the produced urine-derived fertilisers have a better performance on the growth of the leafy basil than the all-purpose commercial fertilisers. Generally, the GDMBRHLSE is a promising cost-effective and green technology for nutrients recovery from urine.

Keyword:

Nutrient recovery Membrane bioreactor Heat localised solar evaporation Source-separated urine Urine stabilization Urine fertiliser

Author Community:

  • [ 1 ] [Ren, Jiawei]Univ Technol Sydney UTS, Sch Civil & Environm Engn, ARC Res Hub Nutrients Circular Econ, City Campus, Broadway, NSW 2007, Australia
  • [ 2 ] [Hao, Derek]Univ Technol Sydney UTS, Sch Civil & Environm Engn, ARC Res Hub Nutrients Circular Econ, City Campus, Broadway, NSW 2007, Australia
  • [ 3 ] [Jiang, Jiaxi]Univ Technol Sydney UTS, Sch Civil & Environm Engn, ARC Res Hub Nutrients Circular Econ, City Campus, Broadway, NSW 2007, Australia
  • [ 4 ] [Phuntsho, Sherub]Univ Technol Sydney UTS, Sch Civil & Environm Engn, ARC Res Hub Nutrients Circular Econ, City Campus, Broadway, NSW 2007, Australia
  • [ 5 ] [Ni, Bing-Jie]Univ Technol Sydney UTS, Sch Civil & Environm Engn, ARC Res Hub Nutrients Circular Econ, City Campus, Broadway, NSW 2007, Australia
  • [ 6 ] [Shon, Ho Kyong]Univ Technol Sydney UTS, Sch Civil & Environm Engn, ARC Res Hub Nutrients Circular Econ, City Campus, Broadway, NSW 2007, Australia
  • [ 7 ] [Ren, Jiawei]Beijing Univ Technol, Coll Architecture & Civil Engn, Fac Urban Construct, Beijing 100124, Peoples R China
  • [ 8 ] [Freguia, Stefano]Univ Melbourne, Dept Chem Engn, Parkville, Vic 3010, Australia
  • [ 9 ] [Dai, Pan]Beijing Origin Water Membrane Technol Co Ltd, Beijing 101400, Peoples R China
  • [ 10 ] [Guan, Jing]Beijing Origin Water Membrane Technol Co Ltd, Beijing 101400, Peoples R China

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Source :

WATER RESEARCH

ISSN: 0043-1354

Year: 2021

Volume: 207

1 2 . 8 0 0

JCR@2022

ESI Discipline: ENVIRONMENT/ECOLOGY;

ESI HC Threshold:94

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 23

SCOPUS Cited Count: 24

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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