Pulsed microbubble air/ozone perfusion for gasoline releases and continuing noncatastrophic spill control at retail outlets
Kerfoot, WB; Ralston, EC; Vossler, DJ; Watt, CJ
| HERO ID | 1248217 |
|---|---|
| Material Type | Abstract |
| In Press | No |
| Year | 2004 |
| Title | Pulsed microbubble air/ozone perfusion for gasoline releases and continuing noncatastrophic spill control at retail outlets |
| Authors | Kerfoot, WB; Ralston, EC; Vossler, DJ; Watt, CJ |
| Journal | Soil and Sediment Contamination |
| Volume | January |
| Abstract | Continued operation of periodic injection of air/ozone microbubbles into groundwater under retail dispensers of gasoline provides a level of protection against low volume releases from vapor or liquid during operation. Four years of operation at spill sites has shown that the ozone targets higher health risk compounds, including aromatic additives (BTEX, naphthalenes, methylbenzenes) and oxygenates (MTBE, ETBE, TBA, TAME). A summary of experiences at numerous sites is presented. Whereas initial remediation of a prior spill may involve short-term use of higher concentrations of oxidant, long-term pulsing requires a balance between maintaining optimal conditions for petroleum compound removal and avoiding impact to nontarget site materials. To evaluate the level of risk of damage, a ranking of structural materials and sensitivity to ozone was compiled from existing sources. The expected concentration of ozone with distance in both gaseous and aqueous forms under microbubble production was compared to materials sensitivity (when available) to prepare a set of standard safety operating procedures. Conditions such as groundwater level beneath grade were found to be an important factor. |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:SOILS, SEDIMENTS, AND WATER. ISSN: |
| Is Public | Yes |
| Keyword | benzene; Chemical spills; Groundwater pollution; Gasoline; MTBE; Remediation; Naphthalene; (2004) |
| Is Qa | No |