Oxidation and removal of organic particles in high-purity water systems using ozone and UV

R. A. Governal, Farhang Shadman

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The interaction and possible existence of synergism between ozone and UV in the removal of particulate contaminants in high purity water systems were investigated in a prototype high purity water system. The results showed that a synergistic effect existed between UV and ozone, possibly due to the generation of highly reactive radicals during the decomposition of dissolved ozone in water by UV light. With high concentrations of humic acids UV was more effective than ozone in shattering the large particles into smaller particles. When the contamination level was less than 20ppb oxidation resulted in a decrease in particle numbers in all size ranges. A combination of 185nm UV/ozone was effective in reducing particulate organic contamination in industrial polishing loops. (A.P.)

Original languageEnglish (US)
Pages (from-to)44-46+48+49
JournalUltrapure Water
Volume9
Issue number4
StatePublished - 1992
Externally publishedYes

Fingerprint

Ozone
ozone
oxidation
Oxidation
Water
Contamination
water
Humic Substances
synergism
Polishing
Ultraviolet radiation
humic acid
range size
removal
particle
Impurities
decomposition
Decomposition
pollutant
contamination

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Water Science and Technology

Cite this

Oxidation and removal of organic particles in high-purity water systems using ozone and UV. / Governal, R. A.; Shadman, Farhang.

In: Ultrapure Water, Vol. 9, No. 4, 1992, p. 44-46+48+49.

Research output: Contribution to journalArticle

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