Uptake and Transformation of the Propellants 2,4-DNT, Perchlorate and Nitroglycerin by Grasses
OHIO UNIV ATHENS
Pagination or Media Count:
The feasibility of using grasses, yellow nutsedge Cyperus escalantus, Indian grass Sorghastrum nutans and big bluestem Andropogon gerardii in the clean-up of propellant contaminated soil was assessed by performing hydroponic and soil experiments. The propellants 2,4-dinitrotoluene 2,4-DNT, perchlorate and nitroglycerin GTN often contaminate firing ranges due to partially detonated ordnances and incomplete combustion of munitions. In hydroponic experiments, sorption of 2,4-DNT to roots was significant in the grasses. Perchlorate accumulated in large amounts in leaves of the grasses with maximum accumulation in yellow nutsedge 732 mg kg-1. GTN was removed from the solution rapidly and almost 100 degradation was seen in all grasses within 52 hours. From soil experiments, it is evident that yellow nutsedge was effective in degrading 2,4-DNT. Perchlorate was accumulated in leaves of yellow nutsedge and Indian grass and GTN degradation was nearly 100 in Indian grass. Degradation in perchlorate and OTN was by bacteria.
- Ammunition and Explosives
- Environmental Health and Safety
- Logistics, Military Facilities and Supplies