现代钨冶炼过程中废水处理现状与发展

Current and Future Development of Wastewater Treatment from Modern Tungsten Metallurgical Process

针对钨冶炼废水含砷和氨氮、碱度高的特点,从处理方法的原理、效果及优缺点等方面进行了分析与总结。重点阐述了氨氮废水处理方法,分析了各处理方法应用于处理钨冶炼废水的优势与不足,指出复合工艺可深度脱除氨氮,能耗低且无二次污染,并探讨了废水治理的发展方向。

In view of arsenic and ammonia nitrogen existing in wastewater from tungsten metallurgy and high alkalinity of the wastewater,principle,efficiency,advantages and disadvantages of various treatment methods are analyzed and reviewed.The treatment processes of ammonia nitrogen wastewater are mainly introduced,and their advantages and disadvantages are analyzed during application in tungsten metallurgy.It is pointed out that the combined process can deeply remove ammonia nitrogen,save energy consumption and avoid secondary pollution.And the development direction of wastewater treatment is discussed.