| 超临界水氧化对含油污泥无害化处理效能研究 |
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| 引用本文： | 崔宝臣,崔福义,刘先军,荆国林,刘淑芝.超临界水氧化对含油污泥无害化处理效能研究[J].应用化工,2009,38(3). |
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| 作者姓名： | 崔宝臣 崔福义 刘先军 荆国林 刘淑芝 |
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| 作者单位： | [1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]大庆石油学院化学化工学院,黑龙江大庆163318 [3]安达广播电视大学,黑龙江安达151400 |
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| 摘 要： | 在间歇反应釜中进行了含油污泥超临界水氧化实验,反应压力为25 MPa,反应温度为390~450℃,反应时间为1~10 min,研究了超临界水氧化后流出液的COD去除效果和可生化降解性以及气体产物组成的变化规律,并对剩余残渣进行了分析。结果表明,随着氧化温度升高,COD去除效果提高,处理后流出液可生化降解性得到明显改善,CO和CO2分别是反应的中间产物和最终产物。在450℃下氧化反应10 min后,COD去除率达到92%,尾气除含有2.64%的CO外不含其它有害气体成分。处理后的固体残渣中基本不含有机物质,主要为无机矿物成分,达到无害化处理要求。
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| 关 键 词： | 超临界水 含油污泥 氧化 无害化处理 |
Harmless treatment of oily sludge using supercritical water oxidation |
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| Abstract: | The supercritical water oxidation(SCWO) of oily sludge is performed in a batch reactor at reaction temperatures between 390～450 ℃,the reaction time 1～10 min and pressure of 25 MPa.Chemical oxygen demand(COD) and biodegradability of effluents are investigated,and gas products and solid residues are analyzed after SCWO.The results indicate that COD removal rate increases as temperature increases.Biodegradability of the effluent is improved obviously after SCWO of oily sludge.CO and CO2 are the major intermediate and the final product,respectively.The COD removal rate of 92 % can be reached at reaction temperature of 450 ℃ in 10 min.Exhaust gas does not contain other hazardous compounds except for CO of 2.64%.Solid residues are mainly inorganic matters,containing no organic matters and reaching the harmless level. |
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| Keywords: | supercritical water oily sludge oxidation harmless treatment |
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