特高浓度氨氮废水吹脱复合氧化处理技术研究  

The treatment technology of super-highly concentrated ammonia-nitrogen wastewater by blowing air and oxidation recombination

作　　者：陈雅红[1] 陈艳玲[1] 徐芃[2] 周文富[1] 

机构地区：[1]三明学院化生工程系,福建三明365004 [2]厦门大学化学系,福建厦门361005

出　　处：《宝鸡文理学院学报（自然科学版）》2007年第4期298-302,共5页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

摘　　要：目的研究氨氮含量为44．16g／L的高浓度废水处理技术，探讨反应温度、pH值、反应时间、温度、吹脱工艺对氨氮去除、COD去除率的影响。方法在水温106℃，pH=11．0～11．2，采用空气吹脱处理18min，气液比150：1左右；残余液用一定浓度的复合氧化剂处理。结果经过处理，一次氨氮去除率达91．50％，氨氮含量≤120mg／L，COD≤50mg／L符合国家排放标准。结论该处理方法简单、可靠、方便，具有较高的实用性和可操作性。Aim To study the treatment technology of wastewater in which ammonia-nitrogen content is 44.16 g/L, and discuss the reaction temperature, pH value, reaction time, temperature, and the effect that blower methodology on the remover of COD in ammonia-nitrogen wastewater. Methods The wastewater temperature is 106℃, pH=11.0-11.2, air blower curing time is 18mins, the ratio of gas-liquid is about 150 ： 1, the remainder liquid was disposed with certain concentration of mixture oxidants. Results The wastewater was disposed by the air blower and oxidating technologies, the removal ratio of ammonia-nitrogen can reach as high as 91.50% one time, ammonia-nitrogen content is less than or equal to 120 mg/L, COD is less than or equal to 50 mg/L, which agree with Chinses Wastewater Discharge Standard. Conclusion The method is simple, reliable, convenient, and is a practical one for super-highly concentrated ammonia-nitrogen wastewater treatment.

关 键 词：高浓度氨氮 吹脱 氧化还原 复合处理工艺 

分 类 号：X703[环境科学与工程—环境工程]