摘要
以沈阳建筑大学生活区的生活污水为研究对象,采用A/O/A/O型SBR系统富集反硝化聚磷菌实现同步除磷脱氮,研究温度、pH、不同碳源对同步除磷脱氮效果的影响。试验结果表明:A/O/A/O型SBR系统在厌氧2 h、好氧1.5 h、缺氧1.5 h、好氧0.5 h的方式下运行,成功富集了反硝化聚磷菌。温度为25℃,pH=7.5,以乙酸钠为碳源时,A/O/A/O型SBR系统对COD、TN、TP的去除率分别达到90%、88%和92%,出水效果达到GB 18918—2002《城镇污水处理厂污染物排放标准》的一级A标准。好氧时间由3 h缩短为2 h,可以节省约33%的能耗。
The sewage in the residential area of Shenyang Jianzhu University is taken as a research object,using A/O/A/O SBR system to realize train the denitrifying phosphorus enrichment bacteria to realize simultaneous phosphorus and nitrogen removal, aiming to study how the temperature, pH, different carbon sources make influence on simultaneous phosphorus and nitrogen removal. The results of the test show that when the SBR system runs in the mode of anaerobic 2 h, aerobic 1.5 h, anoxia 1.5 h, aerobic 0. 5 h, enrich the denitrifying phosphorus enrichment bacteria can be enriched successfully. In the environment of 25℃ , pH = 7.5,with acetic acid sodium for carbon sources, the removal rate of COD, TN, TP reached 90%, 88% and 92% respectively in the SBR system. The effluent is up to the flrst-order A standard of ＂the Urban Sewage Treatment Plant Emissions Standards＂（ GB 18918-2002）. The aerobic time is reduced from 3 h to 2 h, which can save 33% of the energy.
出处
《环境工程》
CAS
CSCD
北大核心
2012年第3期38-41,共4页
Environmental Engineering
基金
辽宁省教育厅重点实验室项目(2009S084)
关键词
SBR
同步脱氮除磷
COD
SBR
simutaneous phosphorus and nitrogen removal
COD
