磁化/超声吹脱处理高质量浓度氨氮废水试验研究  

Research of Treating High Concentration Ammonia Nitrogen Wastewater by Magnetization and Ultrasound Stripping

作　　者：赵丽华[1] 冯俊生[1] 徐佩佩[1] 刘艳平[1] 

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164

出　　处：《常州大学学报（自然科学版）》2013年第3期17-20,共4页Journal of Changzhou University：Natural Science Edition

基　　金：江苏省环境保护厅项目资助(201007)

摘　　要：自制一种复合型氨氮吹脱助剂,引入外加场即超声场和磁场来处理氨氮废水,研究反应的最适宜条件。结果表明,质量浓度1 910～2 000 mg/L的废水在pH为11、助剂的投加量为0.084 8 g/L、水深0.25 m、常温25℃下超声吹脱60 min后氨氮脱除率达到了97%以上,比普通曝气吹脱提高了40%左右;当废水在磁场强度0.27 MT,预磁化时间10 min后,在同等条件下吹脱60 min时氨氮去除率为99.99%,相对于未经磁化的废水脱除率提高了4%左右。A compound ammonia stripping agent was made to treat the ammonia nitrogen wastewater by introducing the ultrasonic field and magnetic field,and the optimum conditions of reaction were studied.The results showed that,the concentration of wastewater was 1 910 to 2 000 mg/L,when pH was 11,additive dosage was 0.084 8 g/L,the depth was 0.25 m,temperature was 25 ℃ and ultrasonic stripping time was 60 min,the ammonia nitrogen removal rate was more than 97%,compared with the traditional air stripping,the ammonia nitrogen removal rate was increased by about 40%.When the wastewater was magnetized under the following condition,the magnetic field strength was 0.27 MT and the magnetization time was 10 min,the ammonia nitrogen removal rate was 99.99% at the same condition;compared with the un-magnetized wastewater,the removal rate increased by about 4%.

关 键 词：氨氮 复合脱氮剂 气动超声吹脱 磁化 脱除率 

分 类 号：N[自然科学总论]