Effect of water-surface desorption on volatile compound removal under bubble aeration

S. Kyosai, B. E. Rittmann

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Two mechanisms of desorption of volatile compounds (VCs) can occur when a tank undergoes bubble aeration: desorption to the bubble and desorption at the free-water surface. A quantification method for prediction of bubble transfer is presented and experimentally verified. Experimental results show that desorption from the surface can be a major fraction of the total desorption rate for VCs. For field conditions, surface transfer accounts for 17 to 60% of the transfer of four chlorinated solvents, even though it accounts for only approximately 6% of the oxygen transfer. Thus, ignoring surface desorption in bubble-aeration systems can cause a major underestimation of the stripping rate of VCs.

Original languageEnglish (US)
Pages (from-to)887-893
Number of pages7
JournalResearch Journal of the Water Pollution Control Federation
Volume63
Issue number6
StatePublished - Nov 5 1991
Externally publishedYes

ASJC Scopus subject areas

  • Pollution

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