燃煤电厂烟气中铅的测定方法初探  

Preliminary Study on Test Method for Lead in Flue Gas from Coal-fired Power Plant

作　　者：陈耿[1] 柯钊跃[1] 唐念 张凯 刘军[1] CHEN Geng;KE Zhao-yue;TANG Nian;ZHANG Kai;LIU Jun(Guangdong Environmental Monitoring Center,Guangzhou,Guangdong 510308,China;Electric Power Research Institute of Guangdong Power Grid Co.Ltd.,Guangzhou,Guangdong 510080,China)

机构地区：[1]广东省环境监测中心,广东广州510308 [2]广东电网有限责任公司电力科学研究院,广东广州510080

出　　处：《环境监测管理与技术》2020年第4期52-54,共3页The Administration and Technique of Environmental Monitoring

基　　金：国家重点研发计划基金资助项目(2018YFC0213903);广东省科技计划基金资助项目(20180208)。

摘　　要：采用过滤法与吸收法联用的采样方法,测定燃煤电厂烟气中Pb,并通过试验考察4种不同的吸收液和4种不同采样流量对测定的影响。结果表明:0.1 mol/L HNO3、体积分数为5%的HNO3+10%的H2O2和体积分数为1.6%的HNO3+2.5%的HCl 3种吸收液均对Pb起到良好的捕集作用,且测定结果相近。采样流量控制在20 L/min吸收效果最好。Pb emissions in the flue gas from coal-fired power plant were determined by combining the sampling methods of filtration and absorption. The testing effectiveness of 4 kinds of absorbent and 4 sampling flows was studied through experiments. The results showed that 3 kinds of absorbent, including 0.1 mol/L HNO3, 5% V/V HNO3+10% V/V H2O2 and 1.6% V/V HNO3+2.5% V/V HCl, had good absorption effects, and the results were similar. The absorption effect was the best when the sampling flow was 20 L/min.

关 键 词：铅 测定方法 燃煤电厂 烟气 

分 类 号：O657.63[理学—分析化学] X831[理学—化学]