You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effect of Water-Surface Desorption on Volatile Compound Removal under Bubble Aeration
Shunsoku Kyosai and Bruce E. Rittmann
Research Journal of the Water Pollution Control Federation
Vol. 63, No. 6 (Sep. - Oct., 1991), pp. 887-894
Published by: Water Environment Federation
Stable URL: http://www.jstor.org/stable/25044079
Page Count: 8
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
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.
Research Journal of the Water Pollution Control Federation © 1991 Water Environment Federation