Electro-oxidation of urine and constituent analysis of resulting wastewater and generated gases for water recovery in space

Urea catalytic oxidation for energy and environmental applications

“…289,290 The removal efficiency of total nitrogen (TN) and total organic carbon (TOC) have become important indicators for urea/urine wastewater remediation. [291][292][293] p-UOR and e-UOR have recently emerged as promising approaches for urea/urine wastewater remediation. [294][295][296] At 60 min, the amount of N 2 reached 806 mmol, with an FE of 77.9%, demonstrating that N 2 was the primary product of urine degradation (97.5%).…”

“…289,290 The removal efficiency of total nitrogen (TN) and total organic carbon (TOC) have become important indicators for urea/urine wastewater remediation. 291–293 p-UOR and e-UOR have recently emerged as promising approaches for urea/urine wastewater remediation. 294–296 Shen et al employed a photoelectrochemical cell system that Cl˙ and ˙HO facilitate the conversion of urea–nitrogen into N 2 while degrading organics into CO 2 .…”