氨氮硝化过程对火电厂开式循环冷却水系统的影响  

INFLUENCE OF NITRIFICATION PROCCESS CONCERNING AMMONIUM NITROGEN UPON THE OPEN TY-PE CIRCULATING COOLING WATER SYSTEM IN THERMAL POWER PLANTS

作　　者：罗奖合[1] 李建玺[1] 陈浩[1] 牛国平 王蓉蓉[1] 罗利家 

机构地区：[1]西安热工研究院有限公司,陕西西安710032 [2]西柏坡发电有限责任公司,河北平山050400 [3]华能北京热电有限责任公司,北京100023

出　　处：《热力发电》2004年第12期5-8,12,共5页Thermal Power Generation

摘　　要：将二级城市污水或受污染的天然水用作火电厂循环水的补水时 ,要考虑氨氮硝化过程带来的不良影响。试验和实践表明 ,补水中氨氮含量高时 ,循环水的 pH值异常下降 ,铜管腐蚀速率明显上升 ,细菌总数大量增加 ,氧化性杀菌剂的杀菌效果被降低。对此进行分析后 。In case of using secondary urban sewage or polluted natural water as makeup water of the circulating water in thermal power plants, the bad influence of nitrification process concerning ammonium nitrogen should be considered. Test and practice show that the high content of ammonium nitrigen in makeup water makes the pH value of circulating water to be abnormally lowered, the corrosinon rate of copper tubes being raised, the total amount of bacterum beinggreatly inereased, and the sterilizing effect of oxidizing bactericide being decreased. In this connection, related remedial measures are given.

关 键 词：火电厂 循环水 二级城市污水 氨氮 硝化过程 微生物 腐蚀 

分 类 号：TM621.8[电气工程—电力系统及自动化]