【作者】 何彤晖； 于德爽； 赵骥； 王晓霞； 都叶奇； 王秋颖； 楚光玉；

【Author】 He Tonghui;Yu Deshuang;Zhao Ji;Wang Xiaoxia;Du Yeqi;Wang Qiuying;Chu Guangyu;School of Environmental Science and Engineering, Qingdao University;

【机构】 青岛大学环境科学与工程学院；

【摘要】 为了解短程反硝化除磷耦合半短程硝化（PDPR-PN）系统处理城市废水与含亚硝废水的运行特性,通过调控进水NH₄⁺-N、COD浓度和好氧时间,实现PDPR-PN系统的启动和稳定运行。结果表明:当采用厌氧180 min,缺氧180 min,好氧150 min的运行方式时,可16 d实现短程反硝化除磷的启动;PO₄^3--P和COD去除率分别达到65.7%和68.9%。当进水NH₄⁺-N、COD浓度提高至123.6,300.0 mg/L并延长好氧时间至320 min时,可实现系统内短程反硝化除磷的稳定维持及短程硝化向半短程硝化的转化。经过83 d运行,系统PO₄^3--P去除率可达到100%,COD去除率维持在76.2%左右,出水NO₂^--N与NH₄⁺-N浓度比值稳定在1.32左右,其水质可满足后续与厌氧氨氧化工艺耦合进行深度脱氮的进水条件。更多还原

【Abstract】 The aim of this study was to investigate the characteristics of partial denitrification-phosphorus removal coupled partial nitritation （PDPR-PN） system treating low C/N municipal wastewater and nitrite-contained sewage.The PDPR-PN system was started up and operated stably by regulating the influent NH₄⁺-N,COD concentrations and aerobic time.The results showed that when the operation was anaerobic（180 min）/anoxic（180 min）/aerobic（150min）,partial denitrification-phosphorus removal（PDPR） in the system could be achieved in 16 days;The removal efficiencies of PO₄^3--P and COD were 65.7%and 68.9%,respectively.When the influent concentrations of NH₄⁺-Nand COD increased to 123.6 mg/L and 300.0 mg/L respectively and the aerobic time was 320 minutes,the conversion from nitritation to partial nitritation of the system could be achieved,and the partial denitrificationphosphorus removal performance was stable.After 83 days of operation,the removal efficienciy of PO₄^3--P could achieve 100%,the average removal efficienciy of COD was 76.2%,and the ratio of NO₂^--N to NH₄⁺-N in effluent is stable at about 1.32.Thus,the effluent of PDPR-PN system was achieved the subsequent influent conditions of anaerobic ammonium oxidation（Anammox） for deep nitrogen removal.更多还原