低温条件下生物转盘处理城镇污水的研究  

Experimental Study on Treatment of Municipal Wastewater by Rotating Biological Contactor under Low Temperature Conditions

作　　者：娄高彬 刘金泉[1] 赵淑萍[1] 王俊安[1] 文一波[1] 

机构地区：[1]北京桑德环境工程有限公司北京市小城镇污水处理与回用工程技术研究中心,北京101102

出　　处：《中国给水排水》2015年第23期101-103,共3页China Water & Wastewater

基　　金：国家"十二五"科技支撑计划项目(2012BAJ21B01)

摘　　要：针对我国北方地区冬季温度低、污水处理厂出水COD和NH3-N浓度难以达标的问题,采用新型高效生物转盘处理城镇污水,考察了在水温<12℃的条件下该工艺对有机物和氨氮的去除效能。结果表明,在水温<12℃、HRT为4.8 h、转盘转速为2.5 r/min、生物转盘BOD5和NH3-N面积负荷分别为10和1.85 g/(m2·d)的条件下,生物转盘对COD、NH3-N的去除率分别可达到76%、80%以上,出水水质满足《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,可实现达标排放。Because the concentrations of COD and NH3 - N in the effluent from WWTPs were dif- ficult to meet the discharge standards at low winter temperatures in northern China, a new and efficient rotating biological contactor was used to treat municipal wastewater. The removal efficiency of organic matter and ammonia nitrogen by the process at temperatures below 12 ℃ was investigated. The results showed that under the conditions of wastewater temperature of below 12 ℃, HRT of 4.8 h, rotary speed of 2.5 r/min, and BOD5 and NH3 - N loading rates of 10 g/（m2 · d） and 1.85 g/（m2 · d）, the removal rates of COD and NH3 - N were above 76% and 80% respectively. The effluent quality could meet the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （ GB 18918 -2002）.

关 键 词：生物转盘 城镇污水 低温 有机物 脱氮 

分 类 号：X703[环境科学与工程—环境工程]