Abstract
Bacillus subtilis spores were used as an indicator organism to characterize the effects of UV radiation and iodine, alone and in combination, as disinfectants for water. Spore exposures to UV radiation were conducted in shallow, well-mixed batch reactors under collimated beams. Three (essentially) monochromatic collimated UV sources were used in these experiments, with characteristic emission wavelengths of 222, 254, and 282 nm. Iodine exposures were conducted in well-mixed batch reactors. Synergism was demonstrated when UV (at certain doses) and iodine were used as sequential disinfectants; synergism was attributed to UV-induced damage that enhanced the susceptibility of spores to iodine.
Original language | English |
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Pages (from-to) | 513-520 |
Number of pages | 8 |
Journal | Journal of Environmental Engineering |
Volume | 134 |
Issue number | 7 |
DOIs | |
State | Published - 2008 |
Keywords
- Bacteria
- Disinfection
- Radiation
- Space life support systems
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Civil and Structural Engineering
- General Environmental Science