水力负荷对内环流蜂窝陶瓷生物反应器去除COD和氨氮的影响  

The Effect of Hydraulic Load on Removal of COD and Ammounia-N from Municipal Wastewater by Using an Internal Loop Bioreactor with Ceramic Honeycomb Biocarriers

作　　者：曹文平[1] 

机构地区：[1]徐州工程学院,江苏徐州221008

出　　处：《徐州工程学院学报（自然科学版）》2012年第3期73-77,共5页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家自然科学基金项目(50678102);河南省重点科技攻关项目(092102310226);徐州工程学院科研项目(XKY2011606)

摘　　要：利用内环流蜂窝陶瓷生物反应器去除城市污水中的COD和氨氮,考察了水力负荷对该生物反应器去除污染物效果的影响.实验结果表明:当水力负荷由0.5m3/(m2.h)增加到1.5m3/(m2.h)时,对COD的去除率下降31.90%,而对氨氮的去除率下降70.92%;当水力负荷为1m3/(m2.h)时,COD的去除率为37.99%,去除速率为1.85kg/(m3.d);氨氮的去除率为44.12%,去除速率为0.83kg/(m3.d).水力负荷由0.5m3/(m2.h)增加到1.5m3/(m2.h)时,蜂窝陶瓷上的指示性生物呈规律性变化.Removal of COD and ammounia-N from municipal wastewater by using an internal loop bio- reactor with ceramic honeycomb biocarriers is under study, and the article investigated the effect of hy- draulic load on the pollutants removal efficiency and characteristics. The results demonstrated that the COD removal ratio was decreased by 31.90% as hydraulic load increased from 0. 5 m3/（m2·h） to 1.5 m3/ （m2·h）, but the ammonia-N removal ratio was deceased by 70.92% under the same conditions; the re- moval ratio of COD was 37.99% when hydraulic load was 1 m 3/（m2·h）, with a removal load of 1.85 kg/ （m3·d） ; the removal ratio of NH3-N was 44.15%, and the volumetric load of ammonia-N was 0.83 kg/ （ma·d）. And the indicative microorganism on ceramic honeycomb bioearriers displays regular changes with the increase in hydraulic load from 0.5 m3/（m2·h） to 1.5 m3/（m2· h）.

关 键 词：内环流反应器 蜂窝陶瓷载体 城市污水 水力负荷 

分 类 号：X52[环境科学与工程—环境工程]