摘要
研究了单独臭氧、臭氧与活性炭联用、臭氧与沸石联用等对粪便污水中氨氮的去除效果。结果表明：单独臭氧对氨氮的去除效果最差、臭氧与沸石联用对氨氮的去除率最高，可达到63.4％、臭氧与活性炭联用介于二者之间；单独臭氧时，臭氧质量分数为10％，20％，中、低浓度氨氮污水的氨氮均先升高后降低，臭氧质量分数为30％，低浓度氨氮污水的氨氮持续下降；臭氧与活性炭联用时，中、低浓度氨氮污水的氨氮均在前0．5h降低得较显著，0．5-2h降低得不明显；臭氧与沸石联用时，低浓度氨氮污水的氨氮变化和臭氧与活性炭联用相似，中浓度氨氮污水的氨氮几乎以恒速下降。
This paper studies the removal effect of ammonia nitrogen in fecal sewage with ozone alone, ozone-activated carbon and ozone-zeolite respectively. The results showed that the removal effect of ammonia nitrogen with ozone alone was the worst, the removal rate with ozone-zeolite was the highest, which could reach 63.4%, and the removal rate with ozone-activated carbon was between the preceding two. When using ozone alone ,and the ozone concentration were 10% and 20%,the ammonia nitrogen concentrations of medium and low concentration of ammonia nitrogen sewage both increased first and then decreased, when the ozone concentration was 30%, the ammonia nitrogen of low concentration of ammonia nitrogen sewage declined continuously. When using ozone-activated carbon,the ammonia nitrogen of medium and low concentration of ammonia nitrogen sewage both reduced significantly in the first 0.5 hour, it was not obvious between 0.5 to 2 hour. When using ozone-zeolite,the change rule of ammonia nitrogen of low concentration of ammonia nitrogen sewage was the same as ozone-activated carbon, the ammonia nitrogen of medium concentration of ammonia nitrogen sewage declined almost with a constant speed.
出处
《环境科技》
2016年第5期18-21,26,共5页
Environmental Science and Technology
基金
国家科技支撑计划课题项目资助(2014BAL02B05)
关键词
粪便污水
臭氧
活性炭
沸石
氨氮
去除率
Fecal sewage
Ozone
Activated carbon
Zeolite
Ammonia nitrogen
The removal rate
