| 化学需氧量COD_（Cr）测定条件改进的研究 |
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| 引用本文： | 徐玉伦,陈明,吴利民.化学需氧量COD_（Cr）测定条件改进的研究[J].天津理工大学学报,1996(1). |
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| 作者姓名： | 徐玉伦 陈明 吴利民 |
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| 作者单位： | 天津理工学院化工系，天津理工学院化工系 |
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| 摘 要： | 本文提出以Ａｇ２ＳＯ４—Ａｌ２（ＳＯ４）３—ＭｇＳＯ４作催化剂，在Ｈ２ＳＯ４－Ｈ３ＰＯ４混酸溶液中快速测定废水ＣＯＤ的新方法．实验确定的最佳条件是：Ａｇ２ＳＯ４：Ａｌ２（ＳＯ４）３：ＭｇＳＯ４＝１∶１∶１（质量比），Ｈ２Ｏ４：Ｈ３ＰＯ４＝５∶１（体积比），回流时间０．５小时，通过对废水ＣＯＤ的测定，取得与标准法相近的结果．
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| 关 键 词： | 化学需氧量COD |
STUDY OF THE IMPROVEMENT UPON THE MEASURING CONDITIONS OF CHEMICAL OXYGEN DEMAND |
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| Xu Yulun, Chen Ming, Wu limin.STUDY OF THE IMPROVEMENT UPON THE MEASURING CONDITIONS OF CHEMICAL OXYGEN DEMAND[J].Journal of Tianjin University of Technology,1996(1). |
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| Authors: | Xu Yulun Chen Ming Wu limin |
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| Institution: | Xu Yulun; Chen Ming; Wu limin |
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| Abstract: | A new method by which Chemical Oxypen Demend (COD) in wasted water canbe rapidly determined with Ag2SO4-Al2 (SO4)3-MgSO4 as catalyst in H2SO4-H3PO4 mixedacid solution is proposed in the article. The best condtions are as follows: Ag2SO4:Al2(SO)3: MgSO4=1: 1: 1 (mass ratio), H2SO4: H3PO4=5:1 (volume ratio),retentiolltime=0. 5 h. The results are identical with what are obtained from the standard method. |
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| Keywords: | Chemical Oxygen Demand(COD) |
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