摘要
在上流式曝气生物滤池中，使用不规则形状页岩及球形粘土陶作填料处理生活污水，在相同工艺条件下，比较了它们对污水的处理 效果，采用两种填料的单级滤池出水，主要水质指标(COD_(cr)，SS)达到国家排放标准，而 NH_3-N 要达标排放需在二级滤池中进一步处理。
Biological aerated Filter （BAF） is an attractive process option, particularly when low land usage is required. It can combine BOD, solids and ammoniacal nitrogen removal and can be utilised at both secondary and tertiary stages of wastewater treatment. Media selection is critical in the design and operation of BAF to achieve Efflucnt quality requirements. The aim of this work was to compare the perfonnance of two kinds of media on Biological Aerated Filter fortreatment of domestic wasterwater, on such reactors, one containing expanded sphtrical clay and the other containing angular shale under identical conditions during start - up and with increasing hydraulic flowrates and volumetric loading rates of BOD5, The results indicated that the removel rote of COD ,SS ,NH3 - N using two kinds of media was approximately . the quality of effluent is compared and the main index meet the standred of disoharged water.
出处
《环境科学与管理》
CAS
2005年第5期37-38,共2页
Environmental Science and Management
关键词
曝气生物滤池
页岩
粘土陶粒
biological aerated filter
expanded sphtrical clay
angular shale
