摘要
研究天然沸石改性及其去除污水中氨氮的条件。结果表明,活化后的沸石具有去除污水中氨氮的作用。影响沸石去除氨氮的主要因素有活化溶液的浓度、溶液中氨氮的浓度、沸石与污水作用时间、污水的pH值等。
The experiments studied the condition and mechanism of removing ammonia ions from municipal sewage by activated zeolite, besides activating natural zeolite. Results of this study indicated that activated zeolite could remove ammonia from municipal sewage. There were many factors that affected the treating process such as the concentration of the activating solution and ammonia in the municipal sewage, treating time, stirring velocity and pH value. The activated zeolite removed ammonia from municipal sewage by means of ion exchange and adsorption, but the former was predominant.
出处
《铁道劳动安全卫生与环保》
2007年第1期8-11,共4页
Railway Occupational Safety Health & Environmental Protection
关键词
城市污水
沸石
氨氮
改性
municipal sewage
zeolite
ammonia
activation
