Simha, Prithvi
- Institutionen för energi och teknik, Sveriges lantbruksuniversitet
Sammanfattning
Pharmaceutical residues in human urine present a critical barrier to its recycling as a circular fertilizer. Gas-phase pulsed corona discharge (PCD) generating short-living radicals at the plasma-liquid interface was applied for targeted and energy-efficient oxidation of anticonvulsant carbamazepine (CBZ) in urine. In aqueous solution, CBZ was rapidly degraded with energy efficiency reaching 50 g kWh(-1). In real urine, CBZ oxidation was hindered (1.6 g kWh(-1)) by competing endogenous organic compounds consuming reactive species. Complete CBZ oxidation was achieved in urine with no detectable loss of plant-essential nutrients (urea, ammonia) or chloride. Compared to conventional ozonation, PCD achieved an order of magnitude higher energy efficiency in CBZ oxidation. The study demonstrates PCD as a targeted pharmaceutical degradation method valorizing human urine.
Nyckelord
advanced oxidation process; carbamide; creatinine; hydroxyl radical; ozone; psychotropic drug; Tegretol; urea
Publicerad i
Plasma Processes and Polymers
2026, volym: 23, nummer: 1, artikelnummer: e70121
Utgivare: WILEY-V C H VERLAG GMBH
SLU författare
UKÄ forskningsämne
Vattenbehandlingsbioteknik
Fusion, plasma och rymdfysik
Publikationens identifierare
- DOI: https://doi.org/10.1002/ppap.70121
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/146276