Record Display for the EPA National Library Catalog
RECORD NUMBER: 1 OF 1| Main Title | Determination of Optimal Toxicant Loading for Biological Closure of a Hazardous Waste Site. | |||||||||||
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| 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 | |||||||||||
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| Collation | 17p | |||||||||||
| Abstract | 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.) |