厌氧折流板反应器处理粪便污水的试验研究

Research on Treatment of Night Soil Wastewater by Anaerobic Baffled Reactor

在有效容积为32L的四格室厌氧折流板反应器中，进行了处理粪便污水的研究．当进水ρCOD=1．270～1．790g／L、pH=7．33～8．45、tHHT=48h时，研究发现：接种污泥经长期驯化的ABR反应器在启动初期COD去除率即能达到75％以上，稳定运行时去除率可达90％左右；pH值沿格室逐渐升高，出水pH值基本稳定在6．8～7．2之间；传统的ABR对NH3-N的去除率仅有20％左右，需结合好氧工艺来进行进一步的脱氮研究．

An anaerobic baffled reactor （ABR） with an effective volume of 32 L and 4 compartments was used to treat night soil wastewater. When the influent quality was that of COD.= 1 270- 1 790 mg/L, pH= 7.33 - 8.45 and HRT = 48h, the results were indicated as follows. The removal rate of COD exceeded 75% in the beginning if the inoculation sludge had been domesticated for a long time, and reached about 90% when the system ran steadily. The pH increased gradually along the compartments, and the pH of outfluent was during 6.8 and 7.2. The removal rate of NH3-N was about 20% in a conventional ABR, and further research on removal of NH3-N should be carried out with the combination of aerobic techniques.