流化床接种优势菌种处理屠宰废水启动研究  

Start-up Study on Slaughter Water Treatment by Dominant Bacteria Vaccinated by Bio-fluidized

作　　者：刘少北[1] 曾涛[1] 林海波[1] 刘鹏[1] 谢君科 

机构地区：[1]四川理工学院机械工程学院,四川自贡643000

出　　处：《四川理工学院学报（自然科学版）》2014年第6期51-54,共4页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：自贡市重点科技计划项目(2013X12)

摘　　要：从若干菌群中选育分离出高效降解屠宰废水的优势菌种,将低温保存的优势菌种活化与流化床内的载体混合,在启动过程中逐步提高进口浓度、水力停留时间、空气流量来完成流化床载体接种优势菌种形成生物膜。结果表明:表观气速不超过1.08 cm/s、水力时间不超过4 h有利于活性炭挂膜;启动成功后,有机容积负荷达6.34 kg COD/(m3·d),COD去除率保持在85%以上。The dominant strain is bred and separated from several bacteria sources which can efficiently degrade slaugh-ter wastewater. The dominant strain from cryopreservation is activated and coupled with the carrier of fluidized bed. In orderto vaccinate dominant bacteria and form biofilm rapidly by fluidized bed carrier, it gradually increases influent COD concen-tration, hydraulic retention time and superficial gas velocity during start-up process. The results show as follows： it is condu-cive to activated carbon membrane when superficial gas velocity is not more than 1.08 cm/s, hydraulic time is not more than4 hours ; after successful start-up, organic volume loading reaches 6. 74 kg COD/（ m3. d）, the removal rate of COD keeps atmore than 85%.

关 键 词：优势菌种 生物流化床 屠宰废水 反应器启动 

分 类 号：X703.1[环境科学与工程—环境工程]