Accession Number : ADA307163

Title :   Use of Respirometry To Determine the Effect of Nutrient Enhancement on JP-8 Biodegradability.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Totten, Christian T.

PDF Url : ADA307163

Report Date : 27 NOV 1995

Pagination or Media Count : 164

Abstract : The purpose of this study was to use respirometry to measure the impact of nutrient combinations or treatments on JP - 8 biodegradation under simulated fuel spill soil conditions. The study was designed observe one soil type at a constant fuel exposure level of 1% and a constant moisture of 60% of field capacity. Three experiments conducted were of two and three factor designs with potassium nitrate and sodium phosphate addition levels serving as two factors and fuel serving as a third factor in Experiments 1 and 2. Cumulative oxygen values obtained by the respirometer were assumed to be a direct indicator of JP-8 biodegradation. Therefore, cumulative oxygen values were used as the response variable for statistical analysis to determine the impact of nutrient enhancement on biodegradation 0fJP - 8.O2 consumption and CO2 production rate data were collected to ensure respiration activity levels were declining or stable to allow for cumulative oxygen data interpretation. Nutrient enhancement was found not to have a positive impact on biodegradation under these conditions. Additionally, losses due to degradation of the JP - 8 were found to be less than losses from volatilization.

Descriptors :   *NUTRIENTS, *SOILS, *RESPIRATION, *BIODEGRADATION, DATA PROCESSING, OPTIMIZATION, IMPACT, DEGRADATION, EXPOSURE(GENERAL), CAPACITY(QUANTITY), SODIUM, OXYGEN, FUELS, VOLATILITY, VALUE, STATISTICAL ANALYSIS, CARBON DIOXIDE, MOISTURE, INDICATORS, PHOSPHATES, POTASSIUM COMPOUNDS, NITRATES, ADDITION.

Subject Categories : Biochemistry
      Food, Food Service and Nutrition
      Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE