| 水质指标COD的优缺点及其测量方法发展 |
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| 引用本文： | 柯细勇,康旭,赵志伟,张光明.水质指标COD的优缺点及其测量方法发展[J].环境科学与技术,2011(Z1):255-258. |
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| 作者姓名： | 柯细勇 康旭 赵志伟 张光明 |
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| 作者单位： | 北京化工大学化工安全教育部工程研究中心;哈尔滨工业大学市政环境学院; |
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| 基金项目： | 国家水体污染控制与治理科技重大专项课题(2009ZX07424-005;2009ZX07424-006); 国家科技支撑项目(2006BAJ08B02) |
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| 摘 要： | COD是最常用的评价水体污染程度的综合性指标。COD指标由于测量方便,费用低,适用范围广等优点已成为我国水质监测中必测的一项指标。但在水质成分复杂,水中无机还原性污染物、难降解有机物含量高时,用COD指标来表征有机污染程度会出现很大的偏差。并且由于COD的标准测定方法易受干扰,使得COD的测定值与理论值相差较大。文章综合分析COD指标应用的局限性及其测定方法的发展。
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| 关 键 词： | COD 有机污染 综合指标 在线分析 氧化 |
Advantage/Disadvantage of COD and Its Development |
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| KE Xi-yong,KANG Xu,ZHAO Zhi-wei,ZHANG Guang-ming.Advantage/Disadvantage of COD and Its Development[J].Environmental Science and Technology,2011(Z1):255-258. |
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| Authors: | KE Xi-yong KANG Xu ZHAO Zhi-wei ZHANG Guang-ming |
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| Institution: | KE Xi-yong1,KANG Xu2,ZHAO Zhi-wei2,ZHANG Guang-ming2(1.Beijing University of Chemical Technology,Beijing 100029,China,2.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China) |
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| Abstract: | COD(chemical oxygen demand) is a common index for assessment of water pollution.Due to its measurement convenience,low cost,and wide scope of application,it has become a dominating index in water quality monitoring.However,when the water constituents are complicated and inorganic reducing pollutants,refractory organic matter content is high in water,using COD index to characterize the degree of organic pollution will cause large deviations.This paper analyses the limitations of COD index and the development... |
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| Keywords: | COD organic pollution comprehensive index on-line analysis oxidation |
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