摘要
工业废水如化肥、焦化、炼化酸洗等高氨氮废水的处理一直是难点，经吹脱、汽提或其他方法处理后，出水氨氮含量仍然较高（200-500mg／L），无法直接采用生物法处理。作者试验研究了化学沉淀、化学氧化及离子交换等方法对300mg／L的氨氮废水的处理效果，从技术及经济方面筛选出了最佳的生化预处理工艺，并得出结论：采用改性沸石与MAP法联用为最佳的预处理工艺，不仅具有良好的处理效果同时也拥有较低的经济成本。
The treatment of industrial wastewater from fertilizer, coking, oil refining plants containing high ammonia-nitrogen, has always been regarded as a difficulty process. After the wastewater is treated by gas stripping, steam stripping or some other methods, the ammonia-nitrogen content in the effluent water is still high, about 200- 500 mg/L, and is unable to be treated by biological technology. The comparison is made among chemical deposition, chemical oxidation and ion exchange methods for the 300 mg/L of ammonia-nitrogen wastewater. The best pretreatment technology is screened out technically and economically. It is concluded that the best pretreatment technology is the combination of modified zeolite and MAP （Magnesium Ammonia Phosphate）. This method not only has better performance, but also needs lower economical cost.
出处
《工业水处理》
CAS
CSCD
北大核心
2008年第10期21-24,共4页
Industrial Water Treatment
基金
国家"十一五"科技支撑计划项目(2008BAE64B00)
关键词
氨氮废水
化学沉淀法
化学氧化法
离子交换法
ammonia-nitrogen industrial wastewater
chemical deposition
chemical oxidation
ion exchange
