铁路生活污水低温厌氧生物滤池设计

Design of low-temperature anaerobic biofilter of railway sewage

北方寒冷地区铁路生活污水低温环境下采用厌氧生物滤池,仅靠调节HRT、NS等设计参数,系统既不经济也不能达到Ⅱ级排放标准。从筛选适应低温的厌氧微生物、改善工艺条件等角度对低温环境下厌氧生物滤池的运行进行了分析研究,给出了驯化、优选低温厌氧细菌的方法,并提出了低温条件下厌氧生物滤池的设计思路。

Railway sewage in northern cold regions at low temperatures using an aerobic biological filter, only by adjusting HRT, Ns, such as design parameters, the system is not only highly economical but also cannot reach the Ⅱ discharge standards. From screening for low-temperature anaerobic microorganisms, the perspective of improving conditions, this pa- per analyzes the operation of the anaerobic biological filter under low temperature environment, and gives domestication, the preferred methods of low-temperature anaerobic bacteria, and puts forward the design thought of the anaerobic filter under the condition of low temperature.