Record Display for the EPA National Library Catalog


Main Title Biotreatability of a Vadose Zone Soil Contaminated with Dioctyl Phthalate.
Author Kampbell, D. H. ; Fine, D. D. ; Anderson, J. W. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;ManTech Environmental Technology, Inc., Ada, OK.
Publisher 1993
Year Published 1993
Report Number EPA/600/A-93/177;
Stock Number PB93-221950
Additional Subjects Phthalates ; Biological treatment ; Soil contamination ; Land pollution control ; Biodegradation ; Bacteria ; In situ processing ; Chemical reactions ; Reprints ; Dioctyl phthalate ; Vadose zone ; Bioremediation
Library Call Number Additional Info Location Last
NTIS  PB93-221950 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 2p
Chemical spillage and waste disposal during 40 years of manufacturing vinyl wallcovering had contaminated portions of a field site with various organic chemicals, predominately xylene and dioctyl phthalate. Laboratory treatability studies were conducted on core samples obtained from the site. The objective was to determine whether natural biodegradation processes would remediate the site. Nine core samples were collected at three locations in 3-ft increments from site locations of low contamination, moderate contamination, and high contamination. Analysis of a nine-sample composite showed that 95 percent of organic compound contamination was dioctyl phthalate. All core samples contained sufficient nitrogen and phosphorus to support viable soil microbiological processes. Extrapolating from laboratory data rates and assuming ideal field conditions, the predicted total time to naturally cleanse the site to less than 10 ppm pthalate would be 3 years and 10 years, respectively, for the moderate and high contaminated areas. Biodegradation of dioctyl phthalate was enhanced by the presence of xylene in a separate microcosm study.