【摘要】 结合我国低浓度的城镇污水处理情况,采用循环流环型生物脱氮除磷工艺显示出十分明显的优势。该工艺有效的将活性污泥法和氧化沟工艺结合起来,同时结合了完全混和反应器与循环反应器,优化了反应技术,运行更为稳定,有助于提高系统耐冲击负荷能力,提高处理污水的效率。对比目前较为流形的传统A2／O工艺,可节省能耗达30％以上,同时也能节省工程投资费用,运行管理方便。更多还原

【Abstract】 Circulative Channel Flow Process (CCFP) was introduced in this paper due to its great advantages in nitrogen and phosphorus removal from urban sewage. Traditional activated sludge process and oxidation ditch process were integrated effectively in CCFP, with the combination of complete mixing and circulative flow in the process. Therefore, reactions in CCFP were optimized and stable operation cowld be achived, which were helpful to increase wastewater treatment efficiency and also improve system capacity for organic impact loading. Compared with traditional A2/O process, CCFP had advantages in energy saving, with about 30% decreased in energy consumption. Results of analysis further indicated that the cost on construction and equipments of CCFP was much lower.更多还原