【摘要】 采用生物快滤池对城市污水厂二级出水进行了深度处理试验。结果表明,生物快滤池启动迅速、过滤周期长。采用自然挂膜,启动只需要10d左右时间;在滤速4.8m/h下,过滤周期可以达到24-120h,平均为72h。生物快滤池对水质有良好适应性,其出水绝大部分时间可满足《城市杂用水水质标准(征求意见稿)》(2002)中的冲厕、消防、园林绿化和建筑施工用水标准。更多还原

【Abstract】 A rapid biological filter (RBF) is used to polish the effluent of a secondary treatment process in an urban wastewater treatment plant. All results demonstrate that the start-up of RBF is very easy and the filtration time is long, only ten days are needed with natural start-up strategy. Under 4.8m/h flow, filtration time reaches 24 ~ 120h with the mean time 72h. RBF shows high flexibility with influent variety. During most test times, the effluent can meet the criteria of Chinese Standard for Urban Water Consumption (2002).更多还原