| 氯离子浓度对含盐污水中有机污染物化学需氧量测定的影响研究 |
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| 引用本文： | 路帅.氯离子浓度对含盐污水中有机污染物化学需氧量测定的影响研究[J].中国石油大学学报(自然科学版),2005,29(5). |
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| 作者姓名： | 路帅 |
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| 作者单位： | 中国石油大学,化学化工学院,山东,东营,257061 |
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| 摘 要： | 采用重铬酸钾法与高锰酸盐指数碱性法对水中化学需氧量(COD)进行了对比测定研究,考察了氯离子浓度对化学需氧量测定结果的影响。分析结果表明,对于低含氯水样(氯离子浓度小于1 000 mg/L),用重铬酸钾法测得的COD值(CODCr)和用高锰酸盐指数碱性法测得的COD值(CODOH)存在线性关系;而高含氯水样的CODCr和CODOH之间无线性相关性。高浓度氯离子对CODCr值的测定影响显著,其影响规律可以用二次多项式表示。
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| 关 键 词： | 化学需氧量 有机污染物 高含氯污水 氯离子 |
Research on effects of concentration of chloride ion on chemical oxygen demand measurement of organic pollutant in saliferous wastewater |
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| LU Shuai.Research on effects of concentration of chloride ion on chemical oxygen demand measurement of organic pollutant in saliferous wastewater[J].Journal of China University of Petroleum,2005,29(5). |
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| Authors: | LU Shuai |
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| Abstract: | The effects of ClO~-_4 on measurement of chemical oxygen demand(COD) of water were studied by comparison of potassium dichromate method and potassium permanganate method.The results show that the COD value(COD_(Cr)) by potassium dichromate method and the COD value(COD_(OH)) by potassium permanganate method have linear relationship for water sample with the low concentration of chloride ion(the concentration of chloride ion is less 1 000 mg per liter),while COD_(Cr) and COD_(OH) have no linear relationship for water sample with the high concentration of chloride ion.The high concentration of chloride ion has considerable effects on COD_(Cr) value which regularity could be expressed by second-degree polynomial. |
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| Keywords: | chemical oxygen demand organic pollutant wastewater with high concentration of chloride ion chloride ion |
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