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Main Title Determination of Optimal Toxicant Loading for Biological Closure of a Hazardous Waste Site.
Author Bianchini, M. A. ; Portier, R. J. ; Fujisaki, K. ; Henry, C. B. ; Templet, P. H. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Louisiana State Univ., Baton Rouge. Inst. for Environmental Studies.
Publisher c1989
Year Published 1989
Report Number EPA/600/D-89/163;
Stock Number PB90-116641
Additional Subjects Hazardous materials ; Site surveys ; Waste disposal ; Biodeterioration ; Aromatic polycyclic hydrocarbons ; Aliphatic hydrocarbons ; Leaching ; Water pollution ; Mississippi River ; Adenosine phosphates ; Microorganisms ; Reprints ; Toxic substances ; Land pollution ; Land restoration ; Environmental transport ; Land management
Library Call Number Additional Info Location Last
NTIS  PB90-116641 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 17p
To achieve biological closure of an abandoned hazardous waste site, waste materials, in the form of buried sludges and lagoon wastes, were examined. Optimal loading levels were evaluated on the basis of biodegradative potential tests and acute toxicity of leachate. Microbial ATP and microbial diversity were used in conjunction with Microtox(tm) tests to establish an acceptable land treatment experimental design. ATP data indicated that both waste types stressed indigenous microbial populations through Day 10. However, the microbial population showed recovery by Day 17. Lagoon wastes, applied at 4 and 8%, showed minimal stress and high ATP levels by Day 17. GC/MS data in subsequent studies documented significant biotransformation and biodegradation of the wastes at these optimized loading rates. (Copyright (c) American Society for Testing and Materials, 1988.)