摘要
在浸没式膜生物反应器(SMBR)中,以人工配制的含氮废水作为原水,考察了在HRT为6h、SRT为50d、不同碳氮比(C/N)和DO条件下系统的同步硝化反硝化效应。结果表明:①在原水TN容积负荷为0.17kg/(m3·d)、C/N值为15、DO为1.0mg/L条件下,可获得81.2%的NH+4-N去除率和83.6%的TN去除率;②在原水TN容积负荷为0.36kg/(m3·d)、C/N值为10、DO为1.5mg/L条件下,可获得76.5%的NH+4-N去除率和52.8%的TN去除率。
Investigation was made on the simultaneous nitrification and denitrification in a submerged membrane bioreactor (SMBR) fed with synthetic wastewater under total nitrogen (TN) volumetric loading of 0.17 kg/(m3·d) and 0.36 kg/(m3·d) with different carbon-nitrogen (C/N) ratio.The sludge and hydraulic retention time (SRT and HRT) were 50 d and 6 h respectively.The result showed that:(1) for the TN volumetric loading of 0.17 kg/(m3·d) in influent,removal rate of NH+4-N and TN is 81.2% and 83.6% respectively under C/N ratio of 15 and DO of 1.0 mg/L;(2) for the TN volumetric loading of 0.36 kg/(m3·d),76.5% and 52.8% removal rate can be achieved respectively for NH+4-N and TN under C/N ratio of 10 and DO of 1.5 mg/L.
出处
《中国给水排水》
CAS
CSCD
北大核心
2003年第7期8-11,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目(20176027)
关键词
SMBR
C/N
DO
同步硝化反硝化
SMBR
C/N
DO
simultaneous nitrification and denitrification
