摘要
在水厂实际运行过程中,通过对常规水厂活性炭滤池与深度处理水厂臭氧-生物活性炭工艺中活性炭滤池长期运行过程中对氨氮的处理效果进行比较,从稳态生物膜模型与非稳态生物膜模型中形成的生物膜所需基质浓度方面做分析,研究进水氨氮浓度对滤料生物膜生长及去除氨氮效果的影响。结果表明,常规水厂活性炭滤池运行1个月后,活性炭滤池去除效果趋于稳定,平均去除率达93.63%,形成的非稳态生物膜,对低营养进水有较好的去除效果,并能应对浓度相对高的氨氮。深度处理水厂活性炭滤池进水一直维持较低氨氮水平,从连续5年的监测数据看,大部分的氨氮浓度月平均值<0.02 mg/L,导致活性炭滤池表面形成了稳态生物膜,生物量与活性趋于稳定,去除效果受限,无法应对低营养进水及突发性高氨氮水。
In the process of plant operation, comparative analysis on removal of ammonia nitrogen by the depth of water treatment activated carbon filter and by the conventional water treatment activated carbon filter. Doing analysis from the substrate concentration required for biofilm by steady and unsteady biofilm model,to study the effects of biofilm growth and ammonia nitrogen removal by influent ammonia nitrogen concentration. The results show： after conventional water treatment activated carbon filter run for a month, the activated carbon filter tends to be stable, the average removal rate of 93.63%, formation of unsteady biofilms, has good removal effect to low nutrient intake, and can deal with a relatively high concentration of ammonia nitrogen. The depth of water treatment activated carbon filter＇s influent ammonia nitrogen has remained low, from 5 consecutive years of monitoring data,most of the ammonia nitrogen concentration monthly average 〈0.02 mg/L, resulting in a steady-state biofilm on the activated carbon filter surface,biomass and activity stabilized, the removal is limited, unable to cope with low nutrient water and sudden high ammonia nitrogen water.
出处
《水处理技术》
CAS
CSCD
北大核心
2016年第5期89-91,96,共4页
Technology of Water Treatment
关键词
活性炭滤池
稳态生物膜
非稳态生物膜
氨氮
activated carbon filter
steady biofilm
unsteady biofilm
ammonia nitrogen
