Biodecontamination of a Full-Scale Formaldehyde Spill
A 21,000 gallon volume of a 50% formaldehyde solution contained in a railroad tank car was inadvertantly spilled over a stone rail-bed ballast. From this point, the solution flowed into a storm runoff ditch and threatened the water supply of a nearby community. Initially, the spillage was contained, vacuum-pumped, and removed for disposal. Further treatment of the site was accomplished by means of biodecontamination. The formaldehyde solution was sprayed over the ballast and this leachate was allowed to flow into a sealed drainage ditch.