摘要
采用一种改良型的UCT工艺用以达到反硝化除磷与各个营养物的去除,该工艺采取了连续性的三段缺氧好氧排列并加以三段式分段进水,以优化碳源提高营养物的去除率.实验中采用合成废水,其日流量为150 L/d并且整个反应器的水力停留时间为8 h,在运行120 d后达到了COD 89.7%的去除,去除氨氮达98.14%,TP与TN的去除率分别达到了91.8%和82.53%.并且在采取分段进水比为35∶35∶30时,反硝化除磷的能力达到了最高,其DNPAO占PAO的比例达39.1%.缺氧段1对TN的去除高达(1.28±0.053)g-1VSS-1d-1.
A novel UCT process was proposed to realize denitrifying phosphorus removal and biological nutrient removal in this paper.In order to optimize carbon for enhancing biological nutrient removal,this small-scale reactor which combine a traditional UCT process with three consecutive step-feed concepts.The synthetic wastewater was used as experimental influent,its influent flow rate（150L/d） which lead to the total hydraulic residence time at 8h.After operating 120 days with the feeding ratio of 35∶ 35∶ 30,the average removal efficiency of NH4＋—N,TP and TN were 98.14%,91.8% and 82.53%,respectively.The proportional DNPAO was 39.1% of total PAO,moreover TN removal in all anoxic zone reached at（1.28±0.053） g-1VSS-1d-1.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2012年第6期661-667,共7页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
国家高技术研究发展计划(863项目)(2006AA05Z109)
关键词
合成废水
脱氮除磷
改良型UCT工艺
synthetic wastewater
nitrogen and phosphorus removal
modified UCT process
