| 重铬酸钾法测定废水样品化学需氧量 |
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| 引用本文： | 郭学伟,李洁. 重铬酸钾法测定废水样品化学需氧量[J]. 金属制品, 2006, 32(6): 54-56 |
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| 作者姓名： | 郭学伟 李洁 |
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| 作者单位： | 安阳钢铁集团有限责任公司,455004;河南省环境保护科学研究院,郑州,450004 |
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| 摘 要： | 对重铬酸钾法测定废水样化学需氧量(CODC r)存在的问题进行分析,采取正交实验优选出MnSO4为0.2g,硫磷混酸体积比为1∶5,回流时间为1 h的最佳试验方法,用MnSO4代替Ag2SO4作为催化剂,可减少试验时间,经检验效果良好。
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| 关 键 词： | 废水 化学需氧量测定 重铬酸钾法 |
| 收稿时间： | 2006-08-31 |
| 修稿时间： | 2006-08-31 |
Determination of Chemical Oxygen Demand of Waste Water with K2Cl2O7 Method |
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| Guo Xuewei,Li Jie. Determination of Chemical Oxygen Demand of Waste Water with K2Cl2O7 Method[J]. Steel Wire Products, 2006, 32(6): 54-56 |
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| Authors: | Guo Xuewei Li Jie |
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| Affiliation: | Anyang Iron and Steel Group Co. , Ltd. 455004;Environment Protection Science Research Institute of Henan Province Zhengzhou 450004 |
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| Abstract: | To analyze the problems existing in determination of chemical oxygen demand of waste water sample with K_2Cl_2O_7 method(COD_(Cr)).Adopting orthogonal experiment to optimize,the optimum test method is that the quantum of MnSO_4 is 0.2g,the volume proportion of mix acid of H_2SO_4 and H_3PO_4 is one fifth,the circumfluence time is 1hour.Substituting MnSO_4 for Ag_2SO_4 as catalyzer can shorten test time,which is good effect by inspection. |
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| Keywords: | waste water chemical oxygen demand determination K2Cl2O7 method |
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