摘要
近年来脱硫废水零排放作为燃煤电厂中控制污染物排放的重要措施而备受关注,特别是脱硫废水中氯离子含量的检测手段和方法已经成为研究热点。本文简述了适用于脱硫废水中氯离子检测的类别和方法,在阐述容量分析、色谱分析、光学分析和电化学分析4类氯离子分析方法原理的基础上,进一步介绍了硝酸银滴定法、离子色谱法、原子吸收光谱法、分光光度法、长周期光纤光栅法、电位滴定法和离子选择电极法7种氯离子检测方法及实际应用,并针对脱硫废水特殊条件对7种检测方法进行了比较,最后对燃煤电厂脱硫废水氯离子检测方法的发展趋势进行了展望。离子选择电极法具有响应快速、易微型化、在线监测等优点,是最适合发展成为脱硫废水氯离子检测标准方法的技术。
In recent years,the zero discharge of desulphurization wastewater has attracted much attention as an important measure to control pollutant discharge in coal-fired power plants.Especially,the detection methods of chloride ion content in desulphurization wastewater have become the research focuses.In this paper,the categories and methods of the chloride detection in desulphurization wastewater were briefly presented.On the basis of the principles of four kinds of chlorine ion analysis methods in capacity analysis,chromatographic analysis,optical analysis and electrochemical analysis,seven kinds of chloride ion detection methods and practical applications,such as silver nitrate titration,ion chromatography,atomic absorption spectrometry,spectrophotometry,long period fiber grating,potentiometric titration and ion selective electrode have been introduced.Furthermore,the special conditions in desulphurization wastewater were compared.Finally,the development trend of chlorine detection method in desulfurization wastewater from coal-fired power plants was prospected.Ion selective electrode has the advantages of fast response,easy miniaturization and online monitoring.It is the most suitable technology for developing the standard method of chloride detection in desulphurization wastewater.
作者
马双忱
徐昉
徐东升
李德峰
范紫瑄
樊帅军
庞蔚莹
MA Shuangchen;XU Fang;XU Dongsheng;LI Defeng;FAN Zixuan;FAN Shuaijun;PANG Weiying(Environment Science and Engineering School,North China Electric Power University,Baoding 071000,Hebei,China;Huadian Qudong Electricity Supply Co.,Ltd.,Xinxiang 453000,Henan,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2018年第10期4044-4052,共9页
Chemical Industry and Engineering Progress
关键词
化学分析
脱硫废水
氯离子
在线监测
离子选择电极法
chemical analysis
desulfurization wastewater
chloride ion
on-line monitoring
ion selective electrode method
