| 用CuSO4-KAl(SO4)2-Na2MoO4作催化剂快速测定COD |
| 摘要点击 794 全文点击 905 投稿时间：1991-07-06 |
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| 中文关键词 COD 快速测定 催化剂 |
| 英文关键词 COD determination catalysts |
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| 中文摘要 |
| 本文提出以CuSO4-KAl(SO4)2-Na2MoO4作催化剂,在H2SO4-H3PO4混酸中快速测定废水COD新方法。正交实验测定的最佳条件是:CuSO4 0.4g;KAl(SO4)2 1.8g;Na2MoO4 0.5g;H2SO4:H3PO4=3(体积比);回流时间0.5h。通过对废水COD的测定,取得与标准法相近的结果。回流时间缩短为0.5h,试剂费用降低50%。 |
| 英文摘要 |
| A new procedure for the rapid determination of COD of waste water in the medium of H2SO4 and H3PO4 with CuSO4-KA1 (SO4)2-Na2MoO4 as catalyst was developed. Orthogonal experiments indicated the optimal conditions of the determination as: CuSO4, 0.4g, KA1(SO4)2, 1.8g, Na2MoO4, 0.5g, H2SO4:H3PO4 (V/V)=3:1, and the reflux time, 0.5 hour. Experimental results show that the proposed procedure is similar to the standard procedure in accuracy and reproducibility. The reflux time and the cost of reagents, however, were reduced to 0.5 hour and 50 percent of the standard procedure, respectively. |
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