燃煤电厂超低排放颗粒物测试方法研究

Study on Testing Methods of Particulate Matter at Ultra-Low Concentration from Coal-Fired Power Plants

燃煤电厂进行超低排放改造后,排放的污染物浓度大幅下降,现有的颗粒物测试标准已经不能满足超低排放条件下颗粒物的监测要求,因此针对中国目前超低浓度条件下颗粒物的排放,制订新的测试标准很有必要。总结了当前国内和国外常用的几种颗粒物测试方法,经过对比研究和现场实测,发现国内测试方法存在不足,并根据这些不足提出国内颗粒物在超低浓度排放条件下的测试方法建议,为准确测量超低排放条件下颗粒物浓度,制订燃煤电厂低浓度颗粒物标准测试方法提供依据。

Since the ultra-low emission retrofitting in coal-fired power plants, the concentration of emitted pollutants has been reduced greatly, and the current particulate matter testing standards can no longer satisfy the monitoring requirements under the conditions of ultra-low emissions of particulate matter. It is necessary to set up new testing standards for particulate matters at ultra-low concentrations. In this paper, several particle testing methods commonly used domestically and abroad are summarized. Based on the comparative study and field tests, it is found that deficiencies exist in the domestic testing methods. Therefore, some suggestions are proposed to provide reference for establishing a standard testing method of particulate matter at ultra-low concentration from coal-fired power plants.