渠式生物接触氧化法处理城市生活污水

河涌是广州的重要水系.但由于城市的发展和污水处理的滞后,导致广州的所有河涌都受到严重的污染.用渠式生物接触氧化反应器动态模拟河涌,对污水进行涌内处理的研究表明,距离长、截面大和逗留时间长的河涌进行构筑,悬挂填料和污水曝气处理,可以有效地处理城市污水.连续运行3个月,进水COD_Cr浓度180mg·L^-1～450mg·L^-1范围,COD_Cr和BOD₅的平均去除率分别为88%、95%.对氨氮和有机磷也有一定去除,进水总氮和总磷浓度分别为15mg·L^-1～30mg·L^-1和2.6mg·L^-1～4.1mg·L^-1时,平均去除率可分别达到52%和1%.

Sewage Treatment by the Canal Reactor with Biomembrane

This paper studies that utilizing sewage canal (waterway) of city to treat sewage on bases of researching water pollution, hydrological data and topography of the canal. A new canal reactor of bacteria membrane with continuous operation was designed, made and studied in the laboratory. The operation results of the reactor show that the reactor could effectively treat the sewage of city. The average data of continuous operation during 3 months showed that the removal ratios of CODCr and BOD5 were 88% and 95% in the range of CODCr concentration 180 mg.L(-1)-450 mg.L-1 in the inlet, separately. The technology also has the advantage of low capital cost, low operation cost. This will create the condition to apply the way to practical living sewage treatment of canal.