摘要
目前,固定污染源废气二氧化硫的监测方法主要有碘量法、定电位电解法、非分散红外法和紫外差分吸收光谱法。本文重点综述了这4种监测方法的原理、现场监测过程和注意事项,并提出了一些现场监测经验做法。同时,对4种监测方法的现场监测数据进行对比分析,探讨了数据变化趋势及方法的适用性,结果发现,定电位电解法和非分散红外法不适合高浓度一氧化碳和高含水率的烟气二氧化硫的测量,而碘量法和紫外差分吸收光谱法能够取得满意结果,这为后续固定污染源废气二氧化硫的监测提供了借鉴。
At present,the monitoring methods of sulfur dioxide from stationary sourceemission mainly include iodimetry,fixed-potential electrolysis,non-dispersive infrared absorption and ultraviolet differential absorption spectrometry.This paper summarized the principle,process and points for attention of four monitoring methods in this paper,and then put forward some experiences.At the same time,This paper also compared the monitoring datas of four monitoring methods and analyzed the trends of datas change and applicability of these methods.It was found that the fixed-potential electrolysis and the non dispersive infrared method were inappropriate to situation of high concentration carbon monoxide and high moisture,while the iodimetry method and the ultraviolet differential absorption spectrum method could gain satisfactory results,which could provided reference of monitoring concentration of sulfur dioxide from stationary source emission.
作者
倪广乐
郑强强
李馥星
NI Guangle;ZHENG Qiangqiang;LI Fuxing(Xuzhou Environmental Monitoring Center,Xuzhou Jiangsu 221002;Kuitun Environmental Monitoring Station,Kuitun Xinjiang 833200)
出处
《河南科技》
2019年第26期147-149,共3页
Henan Science and Technology
关键词
固定污染源废气
二氧化硫
碘量法
定电位电解法
非分散红外法
紫外差分吸收光谱法
stationary source emission
sulfurdioxide
iodimetry
fixed-potential electrolysis
non-dispersive infrared absorption
ultraviolet differential absorption spectrometry
