晶析辅助化学沉淀法处理高浓度氨氮废水  

Treatment of highly concentrated ammonia-nitrogen wastewater by crystallization-combined chemical precipitation process

作　　者：典平鸽[1] 时鹏辉[1] 

机构地区：[1]河南城建学院环境与市政工程系,河南平顶山467044

出　　处：《工业水处理》2010年第1期39-41,共3页Industrial Water Treatment

摘　　要：在化学沉淀法处理高浓度氨氮废水的基础上,选择活化后的黏土、沸石和粉煤灰作为晶种投加到反应器中,然后从氨氮的去除率、生成晶体的粒型、粒径和组成4个方面分析不同晶种的影响。从而得出结论:投加晶种可明显提高氨氮的去除率,但对形成大粒径晶体的影响不大。On the basis of treating highly concentrated ammonia-nitrogen wastewater by chemical precipitation process, activated clay, activated zeolite and activated coal ash have been chosen as crystal seeds. Then, the effects of ammonia-nitrogen removal rate, particle type, particle diameter and component are analyzed. The results show that adding crystal seed can improved ammonia-nitrogen removal rate obviously, but does not have much effect on the formation of big particle diameter.

关 键 词：晶析辅助 化学沉淀法 氨氮废水 

分 类 号：X703.1[环境科学与工程—环境工程]