Composting of explosives and propellant contaminated soils under thermophilic and mesophilic conditions
Composting of explosives and propellant contaminated soils under thermophilic and mesophilic conditions
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高温和中温条件下炸药和推进剂污染土壤的堆肥
DOI：
10.1007/bf01569746
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
W. Sisk
中科院分区：
文献类型：
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作者：
Richard T. Williams;P. Ziegenfuss;W. Sisk
堆肥作为一种生物修复技术，用于清理受爆炸物和推进剂污染的沉积物。进行了两次现场示范，第一次使用2，4，6-三硝基甲苯（TNT）、八氢-1，3，5，7-四硝基-1，3，5，7-四氮杂辛（HMX）、六氢-1，3，5-三硝基-1，3，5-三嗪（RDX）和N-甲基-N，2，4，6-四硝基苯胺（四甲苯）污染的沉积物，第二次使用硝化纤维素（NC）污染的土壤。试验在高温和中温充气静压桩中进行。在嗜热条件下，可浸提TNT从11840 mg/kg降至3 mg/kg，NC从13090 mg/kg降至16 mg/kg。在中温条件下，TNT从11 190 mg/kg降至50 mg/kg。TNT的高温和中温半衰期分别为11.9和21.9天，RDX为17.3和30.1天，HMX为22.8和42.0天。已知的硝基芳族转化产物的浓度在试验期的前几周内增加，但此后降低至低浓度。
Composting was investigated as a bioremediation technology for clean-up of sediments contaminated with explosives and propellants. Two field demonstrations were conducted, the first using 2,4,6-trinitrotoluene (TNT), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), and N-methyl-N,2,4,6-tetranitroaniline (tetryl) contaminated sediment, and the second using nitrocellulose (NC) contaminated soil. Tests were conducted in thermophilic and mesophilic aerated static piles. Extractable TNT was reduced from 11840 mg/kg to 3 mg/kg, and NC from 13090 mg/kg to 16 mg/kg under thermophilic conditions. Under mesophilic conditions, TNT was reduced from 11 190 mg/kg to 50 mg/kg. The thermophilic and mesophilic half-lives were 11.9 and 21.9 days for TNT, 17.3 and 30.1 days for RDX, and 22.8 and 42.0 days for HMX, respectively. Known nitroaromatic transformation products increased in concentration over the first several weeks of the test period, but decreased to low concentrations thereafter.