Municipal wastewater treatment using sequencing batch biofilm reactor(SBBR)
In order to improve the small and medium-sized point source pollution of control of the municipal wastewater treatment technology,a novel type of laboratory-scale sequencing batch biofilm reactor(SBBR)was developed,in which a acryl cylinder(diameter 70 mm,height 200 mm)was equipped,many fiber threads were fixed at the surface of the cylinder as the bacteria carrier After nearly 5 months of operation,it was found that the ammonia can be removed completely in 2 Cycs(17h),and the other parameters can achieve the wastewater discharged cfiterion.In the different initial and different DO COD experiments.Also,it ranged from 11％to 100％,when the DO concentration increased from 2 to 6 mg/L,while the nitrate and nitrite concentration was increased from 0.72 to 12.00 mg/L and 0.08 to 17.55 mg/L,respectively.Especially,the denitrafication is decreased at relatively higher DO concentration of 4mg/L or 6mg/L.HoweveL it was showed that the TN removal rate was higher at 4mg/L of DO than that at bOth 2 and 6 mg/L.So,the effects can match the traditional separated nitrification and(1enitrificafion tank.
SBBR biofilm municipal wastewater
Yu GAO Chuanping FENG Chao LIU
School of Water Resources and Enviroment,China University of Geosciences,Beijing,100083,China
国际会议
西安
英文
617-624
2008-05-15（万方平台首次上网日期，不代表论文的发表时间）