Chemistry and Kinetics of I2 Loss in Urine Distillate and Humidity Condensate 921314
A significant decline in molecular iodine concentration is associated with the iodination of heavily contaminant-laden process water streams such as humidity condensate and urine distillate. Iodine loss is attributable to the reaction of this biocide with organic constituents. This phenomenon has been investigated using time resolved molecular absorption spectrophotometry of iodinated ersatz humidity condensates and iodinated ersatz urine distillates across the ultraviolet and visible spectral regions. Rates of iodine loss have also been studied using single contaminant systems at equivalent concentrations. The predominant reactive species have been identified as thiourea and formic acid. Pseudo-first order rate constants have been determined for ersatz contaminant model mixtures and for individual reactive constituents. Second order rate constants have been determined for the bimolecular reaction of iodine and formic acid. Temperature and concentration dependencies of reaction rates are discussed.
Citation: Atwater, J., Wheeler, R., Olivadoti, J., and Sauer, R., "Chemistry and Kinetics of I2 Loss in Urine Distillate and Humidity Condensate," SAE Technical Paper 921314, 1992, https://doi.org/10.4271/921314. Download Citation
Author(s):
James E. Atwater, Richard R. Wheeler, J. Troy Olivadoti, Richard L. Sauer
Affiliated:
Umpqua Research Co.
Pages: 12
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Fluids and secretions
Humidity
Water
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