摘要
构建了两个平行的BAF(分别是陶粒/竹丝复合填料BAF和竹丝填料BAF),研究了低温环境下两个BAF处理生活污水的特性。结果表明:水温为7.9℃~14.8℃时,相对于竹丝填料BAF,陶粒/竹丝复合填料BAF的净化效果更显著。陶粒/竹丝复合填料BAF对TN、NO_3~—-N、NH_4^+-N和TP的去除率为2.7%~89.4%、61%~94.6%、11.5%~99.8%、25.5%~96.8%,而竹丝填料BAF对TN、NO_3~—-N、NH_4^+-N和TP的去除率为1.3%~78.5%、3.7%~92.4%、3.1%~97.7%、2.0%~89.3%。而且陶粒/竹丝复合填料BAF出水NO_2~—-N浓度为0.05~1.73 mg/L,平均为0.64 mg/L相对偏低。可能在低温条件下,复合填料上不同菌种之间的共降解和协同降解作用更为显著。
Two parallel BAFs（one was ceramsite and bamboo as combined substrate,the other was bamboo as substrate） were developed,and the different purification performances of two BAFs was investigated under low temperature conditions.The results indicated that the BAF with ceramsite and bamboo had more significant removal efficiency when water temperature maintained 7.9℃~14.8℃.The removal rate of TN,NO3^--N,NH4~＋-N and TP of BAF（ceramsite and bamboo） were 2.7%~89.4%,61%~94.6%,11.5%~99.8%,25.5%~96.8% respectively,and the corresponding removal rate of BAF（bamboo） were only 1.3%~78.5%,3.7%~92.4%,3.1%~97.7%,2.0%~89.3% respectively.The effluent concentration of NO2^--N was 0.05~1.73 mg/L with an average of 0.64 mg/L.The co-degradation and synergy degradation of different strains on the different substrates has more significant purification under low temperature conditions.
出处
《人民珠江》
2017年第10期91-94,共4页
Pearl River
关键词
填料
曝气生物滤池
生活污水
除磷脱氮
低温
Substrate
Biological aerated filter
Domestic wastewater
Phosphorus and nitrogen removal
Low temperature
