Record Display for the EPA National Library Catalog


Main Title In-Situ Biological Degradation Test at Kelly Air Force Base. Volume 1. Site Characterization, Laboratory Studies and Treatment System Design and Installation.
Author Wetzel, Roger S. ; Durst, Connie M. ; Spooner, Philip A. ; Ellis, William D. ; Sarno, Douglas J. ;
CORP Author Science Applications International Corp., McLean, VA.;Air Force Engineering and Services Center, Tyndall AFB, FL. Engineering and Services Lab.
Year Published 1986
Report Number EPA-68-03-3113; 1900; 20; AFESC/ESL-TR-85-52;
Stock Number AD-A169 993/3
Additional Subjects Environmental engineering ; Water treatment ; Soils ; Pollution abatement ; Biodeterioration ; Microorganisms ; Ground water ; Nutrients ; Hydrogen peroxide ; Organic materials ; Pollutants ; Waste treatment ; Water wells ; Chlorinated hydrocarbons ; Aromatic hydrocarbons ; Reclamation ; Clay ; Loams ;
Library Call Number Additional Info Location Last
NTIS  AD-A169 993/3 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 290p
In situ biological degradation involves stimulation of the indigenous subsurface microbial population, by the addition of nutrients and an oxygen source (hydrogen peroxide), in order to promote degradation of organic contaminants present in soils and groundwater. The site selected for the demonstration of in situ biodegradation contains a mixture of inorganic and organic contaminants including electroplating wastes, chlorinated solvents, cresols, and chlorobenzenes. The soils are classified as gravelly clay loams and the hydraulic conductivity within the demonstration site varies from 0.11 to 9.26 ft/day. The design of the field demonstration involved computer modeling using a two dimensional nonsteady state model to determine the number and placement of injection and extraction wells. Stabilized hydrogen peroxide and specially formulated nutrients are introduced to the subsurface and the groundwater is circulated by pumping and gravity injection. Routine monitoring of chemical and biological parameters has been conducted during a 3-month operation period from June through September 1985. These results are presented and indicate that rapid transport and breakthrough of ammonia and phosphate has occured in areas of high hydraulic conductivity. The microbial population has adapted to the addition of nutrients and incremental increases of hydrogen peroxide and remains viable. Comparisons of performance and cost are also presented against more traditional treatment approaches.