INFLUENCE OF NITRIFICATION PROCCESS CONCERNING AMMONIUM NITROGEN UPON THE OPEN TY-PE CIRCULATING COOLING WATER SYSTEM IN THERMAL POWER PLANTS[J]. Thermal power generation, 2004, (12): 5-8.
INFLUENCE OF NITRIFICATION PROCCESS CONCERNING AMMONIUM NITROGEN UPON THE OPEN TY-PE CIRCULATING COOLING WATER SYSTEM IN THERMAL POWER PLANTS[J]. Thermal power generation, 2004, (12): 5-8. DOI: 10.19666/j.rlfd.2004.12.002.
氨氮硝化过程对火电厂开式循环冷却水系统的影响
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
给出了相关的治理措施
Abstract
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