摘要
根据离子色谱法检测电除尘飞灰中氨含量的原理,进行检测条件优化试验,得出影响飞灰中氨含量的主要因素有溶液pH值、搅拌时间、水灰比等。在得出最佳试验条件后,进行重复性测试和加标回收率测试,结果表明离子色谱法测定飞灰中氨含量的方法具有较高的精密度和准确度,可作为监测脱硝系统氨逃逸的一种手段。
By applying the principle of ion-chromatography method for testing ammonia content in electrostatic precipitator fly ash, tests to optimize detecting conditions is carried on. It is concluded that the main factors influencing ammonia content in fly ash are pH of solution, mixing time, water and ash ratio and so forth. After optimal test condition is obtained, repeatability test and adding standard recovery rate test are conducted.The results show that ion-chromatography method is of high precision and accuracy in testing ammonia content in electrostatic precipitator fly ash and it can be used to monitor ammonia escape in desulfurization system.
出处
《浙江电力》
2014年第6期43-47,共5页
Zhejiang Electric Power
关键词
离子色谱法
飞灰
氨逃逸量
脱硝系统
ion-chromatography method
fly ash
ammonia escape amount
desulfurization system
