摘要
在30℃和80～95 r.min-1的条件下,利用摇瓶试验探讨了弹性填料(YDT)和竹子作为填料对污泥为主要碳源的系统反硝化特性和机理。试验结果表明,以污泥/竹子系统中NO3--N的去除速率最大(2.51 g.m-.3h-1),其次是污泥/YDT系统(1.30 g.m-.3h-1),最后是污泥系统(0.53 g.m-.3h-1);而NO2--N积累量也呈现一定的趋势(以每去除1 g NO3--N计算):污泥/竹子系统最高、污泥系统次之、最后是污泥/YDT系统;污泥特性是决定系统反硝化效果的主要因素。然后以污泥/竹子系统进行深入了研究发现,水温对污泥/竹子系统的反硝化过程具有较为显著的影响。
Biodenitrification properties and mechanisms were investigated of using YDT and bamboo as biocarriers and excess sludge as main carbon source in some shake flask under 30℃ and 80-95 r .min^-1.The experimental results demonstrated that the largest removal rate of NO3^--N（2.51 g·m^-3,h^-1） was observed in the excess sludge/bamboo unit,then excess sludge/YDT unit （1.30 g·m^-3,h^-1）,finally excess sludge unit （0.53g·m^-3,h^-1）,and the accumative NO2^--N amount was computed as lg NO3^--N was removed,the largest accumative NO2^--N was obtained by excess/sludge system, and the smallest accumative NO2^--N was appeared in excess sludge/YDT system.The excess sludge properties was decided factor when excess sludge was used as carbon source for biodenitrification.The influences factor of water temperature was further studied about excess sludge/bamboo denitriflcation system,and water temperature could obviously influenced the process of biodenitrification.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第1期36-40,共5页
Technology of Water Treatment
基金
河南省重点科技攻关项目(082102350042)
徐州工程学院校级培育项目(XKY2010110)
