Bioremediation of 2,4,6-trinitrotoluene contaminated soil in slurry and column reactors.

Screening Effective Factors in Slurry Phase Bioremediation of 2,4,6-Trinitrotoluene (TNT) Contaminated Soil

Effect of food-grade surfactant on bioremediation of explosives-contaminated soil.

The use of native soil bacteria to biodegrade explosives-contaminated soil under co-metabolic conditions has been demonstrated. The addition of food-grade surfactants could improve the process by enhancing the rates of explosives desorption from soil, thereby increasing the bioavailability of explosives for microbial degradation. The objective of this study was to decrease residence time in the...

J.R. Simplot Ex-Situ Anaerobic Bioremediation Technology: TNT

Abstract The J.R. Simplot Ex-Situ Bioremediation Technology, also known as the J.R. Simplot Anaerobic Bioremediation (SABRETM) process, is designed to anaerobically degrade nitroaromatic and energetic compounds with total destruction of toxic intermediate compounds at the completion of treatment. An evaluation of this technology was conducted under the SITE Program on soils contaminated with 2,...

Effects of humic substances and soya lecithin on the aerobic bioremediation of a soil historically contaminated by polycyclic aromatic hydrocarbons (PAHs).

The high hydrophobicity of polycyclic aromatic hydrocarbons (PAHs) strongly reduces their bioavailability in aged contaminated soils, thus limiting their bioremediation. The biodegradation of PAHs in soils can be enhanced by employing surface-active agents. However, chemical surfactants are often recalcitrant and exert toxic effects in the amended soils. The effects of two biogenic materials as...

Solid-state nitrogen-15 nuclear magnetic resonance analysis of biologically reduced 2,4,6-trinitrotoluene in a soil slurry remediation.

Soil contaminated with 2,4,6-trinitrotoluene (TNT) and spiked with [14C]- and [15N3]-TNT was subjected to an anaerobic-aerobic soil slurry treatment and subsequently analyzed by radiocounting and solid-state 15N nuclear magnetic resonance (NMR) spectroscopy. This treatment led to a complete disappearance of extractable radioactivity originating from TNT and almost all of the radioactivity was r...