核电厂含高浓度联氨废水处理方法研究

Research on Treatment of Wastewater Contained High Concentration Hydrazine in Nuclear Power Plant

核电厂含高浓度联氨(N2H4)废水主要来源包括工艺系统含联氨冲洗水、保养水、疏排水、含联氨泄露水等。本文通过实验对比分析多种化学添加剂对含高浓度联氨废水处理的有效性,最终推荐紧急处理含高浓度联氨废水时加入4.55倍联氨质量的次氯酸钠;非紧急时,推荐加入1.76倍联氨质量的过氧化氢,另需添加适量(废水中硫酸铜浓度为500μg/kg)硫酸铜。

In nuclear power plants, the main source of wastewater thatcontained hydrazine includes process system flushing water, lay -up water, drain,leakage, etc. This papertestseveral chemicals for treating wastewater thatcontained high concentra- tion hydrazine. It is suggested to add 4. 55 times hydrazine amounts of sodium hypochlorite for emergenttreating wastewaterthat con- tained high concentration hydrazine, and add 1.76 times hydrazine amounts of hydrogen peroxide and a moderate amount of cop- per sulfate for non - urgent treatment wastewater that contained high concentration hydrazine.