摘要
中水回用于火电厂循环冷却水系统,其中的氨氮是有害的污染物之一,必须对其进行准确快速测定,以便采取及时有效的处理措施。氨气敏电极电位法作为一种简便快速而又环保的氨氮含量测定方法,因目前针对该方法的影响因素缺乏统一的定量分析而未能推广应用。为此,对影响该方法测定准确性的诸多因素进行了定量分析研究,结果表明:中水的浊度、色度、电导率、易与氨络合的离子以及有机物等干扰因素对测定结果没有影响;中水水样回收率测定值均在95%～105%范围内,证明氨气敏电极电位法适用于中水的氨氮含量测定。
In the event of municpal reclaimed water being used in the circulatory cooling water system of power plants, the ammonia- nitrogen in it is one of the main contaminations, hence, it is necessary to detect ammonia-nitrogen correctly and rapidly, so as to adop measures timely and effectively for its treatment. The ammonia sensitive electrode potential method, which is simple, rapid, and environment freendly, hasn＇t been popularized in power plants due to lacking unitive quantitative analysis on the af- fecting factors of this method. For these, many affecting factors of the this method have quantitatively analysed and studied. Results show that the affecting factors, such as turbidity,chroma, conductivity, complex ions, and organic compounds etc. , didn~ t affect the result of measurement, the measured value of recovery rate for municipal reclaimed water samples all within 95%- 105%, proving that the said method is suitable to determine the content of ammonia - nitrogen in municipal reclaimed water.
出处
《热力发电》
CAS
北大核心
2009年第12期36-40,共5页
Thermal Power Generation
关键词
火电厂
循环水
中水
氨氮检测
电极法
氨气敏电极
municipal reclaimed water
ammonia - nitrogen detection
electrode method
ammonia sensitive electrode
thermal power plant
circulatory water
