Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China.
Chemosphere. 2010 Aug;80(8):947-50. doi: 10.1016/j.chemosphere.2010.05.004. Epub 2010 May 26.
2,4,6-Trinitrotoluene (TNT) red water from Chinese explosive industry was treated by vacuum distillation. The water quality before and after distillation was evaluated using high performance liquid chromatograph, UV-vis spectroscopy, Gas Chromatography/Mass Spectroscopy (GC/MS) and other physical and chemical analyses. The acute toxicity of TNT red water and its distillate was evaluated by determining the luminescence inhibition of Vibrio qinghaiensis sp. Nov. The results showed that the parameters except pH of the distillate met the criterion specified by the Chinese discharge standard for water pollutants from ordnance industry. Distillation removed chemical oxygen demand almost completely and the chrominance was reduced from 100,000 degrees to 17 degrees . The concentrations of 2,4-dinitrotoluene-3-sulfonate and 2,4-dinitrotoluene-5-sulfonate decreased from 20 x 10(3) and 31 x 10(3)mg L(-1) to 1.3 and 1.8 mg L(-1), respectively. GC/MS results showed that most of the organic components of TNT red water can be removed by distillation. The acute toxicity of water sample after distillation reduced 96%, compared with that of unprocessed TNT red water.
2,4,6-三硝基甲苯（TNT）红水来自中国爆炸物工业，采用真空蒸馏进行处理。采用高效液相色谱、紫外可见光谱、气相色谱/质谱（GC/MS）和其他理化分析方法对蒸馏前后的水质进行了评估。采用青海弧菌发光抑制法评价 TNT 红水及其馏分的急性毒性。结果表明，馏分的除 pH 值以外的其他参数均符合中国兵工行业水污染物排放标准。蒸馏几乎完全去除了化学需氧量，色度从 10 万度降至 17 度。2,4-二硝基甲苯-3-磺酸和 2,4-二硝基甲苯-5-磺酸的浓度分别从 20 x 10(3)和 31 x 10(3)mg/L 降至 1.3 和 1.8 mg/L。GC/MS 结果表明，蒸馏可去除 TNT 红水中的大部分有机成分。与未经处理的 TNT 红水相比，蒸馏后的水样急性毒性降低了 96%。
