生活污水处理厂强化脱氮除磷工艺改造及效果分析

Process Modification and Effect Analysis for Enhancing Nitrogen and Phosphorus Removal of Municipal Sewage Treatment Plant

黑龙江科技大学污水处理厂在生物氧化处理工艺基础上,结合该厂的实际运行情况进行了升级改造,改造后工艺为A2/O法,该工艺将固定生长的微生物引入曝气池内,形成了非固定化的活性污泥,建立了与附着态(生物膜)微生物共生的生化反应池。该系统既具有生物膜法运行稳定、容积负荷较高等优点,又能充分发挥活性污泥法出水水质好、脱氮除磷效果好等优势。

Based on biological oxidation treatment process for municipal sewage treatment plant of Heilongjiang University of Science and Tech- nology, combining with the actual operation,the plant was upgraded and transformed. The upgraded and transformed process was A2/O. The immo- bilized activated sludge was formed by the introduction of fix microorganism in the aeration pool, and the attached biofilm was established in the biochemical reaction tank. The system was running stably, had the advantages of biofilm and activated sludge with efficient nitrogen and phosphor- us removal.