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铁碳微电解预处理TNT红水

Keywords: TNT红水,铁碳微电解,预处理,2,4-二硝基甲苯-3-磺酸,2,4-二硝基甲苯-5-磺酸

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Abstract:

为了寻求经济有效的TNT红水处理技术,对铁碳微电解工艺预处理TNT红水进行了研究。结果表明,当pH值为3,铁碳质量比0.25∶1,曝气3h时,COD去除率达到10.1%,2,4-二硝基甲苯-3-磺酸(2,4-dinitrotoluene-3-sulfonicacid,2,4-DNT-3-SA)和2,4-二硝基甲苯-5-磺酸(2,4-dinitrotoluene-5-sulfonicacid,2,4-DNT-5-SA)的去除率分别可达到10.4%和12.0%;铁碳微电解可以将TNT红水中部分有机物进行转化或去除,经过铁碳微电解后,红水中的有机物从原来的11种变为16种。大部分有机物得到了不同程度的转化,其中1,3,5-三硝基甲苯相对含量降低得最多。

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