摘要
将改性粉煤灰应用于氨氮废水中,考察改性粉煤灰的吸附方式、超声功率、吸附时间、吸附剂投加量、吸附剂粒度和溶液p H值对氨氮去除率的影响。结果表明:(1)适宜功率的超声辅助有利于氨氮吸附过程的进行;(2)在pH值为5、浓度100 mg/L的氨氮废水中,投加180目的粉煤灰10 g,240 W超声功率下吸附5 h,氨氮的去除率可达90.7%。
The modified fly ash is applied to the ammonia nitrogen wastewater,to discuss the effect of adsorption method and ultrasonic power,contact time,adsorbent dose,particle size and p H value on ammonia nitrogen removal rate. The results showed that suitable ultrasound power were in favor of the adsorption process. With adsorption for 5 h under ultrasound power 240 W,initial ammonia nitrogen concentration 100 mg/L,adsorbent dosage 10 g,particle size 180 mesh and pH 5,ammonia nitrogen removal rate could reach 90.7%.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2016年第6期145-149,共5页
Environmental Science & Technology
基金
贵州省教育厅高等学校创新人才团队(黔教合人才团队字[2014]46)
贵州省教育厅自然科学研究项目(黔教合KY字[2013]201)
贵州省科技厅资助项目(黔科合J字LKLS[2013]25)
关键词
改性粉煤灰
超声
氨氮去除率
modified fly ash
ultrasound
ammonia nitrogen removal rate
