两段上向流曝气生物滤池处理生活污水  

Two-stage Up-flow Biological Aerated Filter for Domestic Wastewater Treatment

作　　者：司马卫平[1,2] 何强[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045 [2]四川理工学院建筑工程学院,四川自贡643000

出　　处：《中国给水排水》2010年第13期15-17,21,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07315-001)

摘　　要：采用半柔性填料和酶促好氧填料的两段(C段和N段)上向流曝气生物滤池(TUBAF)处理生活污水,考察了水力负荷、COD容积负荷对其除污效果的影响,并分析了C段和N段对系统处理效能的贡献。结果表明,在水力负荷为0.21～0.42m3/(m2.h)的条件下,对COD、SS、氨氮和总氮的去除率均随水力负荷的增加而下降,其去除率分别由88.6%、95.8%、92.6%、38.6%下降到83.6%、89.5%、79.1%和29.4%;在COD容积负荷为0.3～1.0kg/(m3.d)的条件下,对氨氮、COD的去除率随COD容积负荷的增加而缓慢下降,去除率分别在83.2%、84.7%以上;TUBAF有效地实现了功能分区,C段对有机物的去除和N段对氨氮的去除均占总去除量的70%以上。A two-stage up-flow biological aerated filter （TUBAF） with semi-soft media and enzyme-enhanced aerobic media （denoted by BAF-C and BAF-N respectively） was used to treat domestic wastewater. The influence of hydraulic load and COD volume load on the pollutant removal efficiency was investigated. The contributions of BAF-C and BAF-N were analyzed. The experimental results show that under the hydraulic load of 0.21 to 0.42 m3/（m2·h） , the removal rates of COD, SS, NI-/3 -N and TN are decreased with increasing hydraulic load, from 88.6% , 95.8% , 92.6% and 38.6% to 83.6% , 89.5% , 79.1% and 29.4% respectively. The removal rates of NH3 - N and COD are gradually decreased with increasing COD volume load, being over 83.2% and 84.7% when COD volume load is 0.3 to 1.0 kg/（ m3 ·d）. Both the removal rates of COD in BAF-C and NH3 - N in BAF-N are over 70% of the total removal rate due to different functional areas implemented in TUBAF.

关 键 词：两段上向流曝气生物滤池 生活污水 水力负荷 COD容积负荷 

分 类 号：X703[环境科学与工程—环境工程]