Degradation of 75 organic micropollutants in fresh human urine and water by UV advanced oxidation process

Sammanfattning

In household wastewater, a large proportion of organic micropollutants (OMPs) load is attributed to human urine. OMPs could pose a risk to human and environmental health when urine collected in source-separating sanitation systems is recycled as crop fertiliser. This study evaluated degradation of 75 OMPs in human urine treated by a UV-based advanced oxidation process. Fresh urine and water samples were spiked with a broad range of OMPs and fed into a photoreactor equipped with a UV lamp (185 and 254 nm) that generated free radicals in situ. Degradation rate constant and the energy required to degrade 90% of all the OMPs in both matrices were determined. At a UV dose of 2060 J m-2, average & sigma;OMP degradation of 99% (& PLUSMN;4%) in water and 55% (& PLUSMN;36%) in fresh urine was achieved. The energy demand for removal of OMPs in water was

Nyckelord

Circular sanitation; Fertiliser; Nutrient recycling; Pharmaceuticals; Urine diversion; Wastewater treatment

Publicerad i

Water Research
2023, volym: 242, artikelnummer: 120221
Utgivare: PERGAMON-ELSEVIER SCIENCE LTD

SLU författare

• Demissie, Natnael

  • Institutionen för energi och teknik, Sveriges lantbruksuniversitet
    
  • Addis Ababa University

• Simha, Prithvi

  • Institutionen för energi och teknik, Sveriges lantbruksuniversitet
    

• Lai, Foon Yin

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

• Ahrens, Lutz

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

• Vinnerås, Björn

  • Institutionen för energi och teknik, Sveriges lantbruksuniversitet
    

Globala målen (SDG)

SDG6 Rent vatten och sanitet för alla

UKÄ forskningsämne

Vattenbehandlingsbioteknik

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.watres.2023.120221

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/123590