%0 Journal Article
%T Optimization and Stability of Denitrifying Phosphorus Removal in a Two-Sludge System for Treating Wastewater with Low Carbon Source<br>A2N系统中低碳污水的反硝化除磷优化及运行稳定性
%A ZHANG Yao-bin
%A XING Ya-bin
%A QIN Si-fei
%A QUAN Xie
%A CHEN Shuo
%A <br>张耀斌
%A 邢亚彬
%A 秦四飞
%A 全燮
%A 陈硕
%J 环境科学
%D 2011
%I 
%X Poly-beta-hydroxybutyrate (PHB) could be efficiently accumulated under optimized conditions in a sequencing batch moving bed biological reactor (SBMBBR), and a high performance of denitrifying phosphorus removal in the reactor could be achieved by coupling with a two-sludge system. Denitrifying phosphorus removal achieved the highest efficiency under influent COD of 200 mg/L, neutral pH and stirring speed of 80 r/min. The removal rates of phosphorus, NO3(-)-N and NO2(-)-N reached 83.7%, 81.4% and above 100%, respectively. High biomass in the SBMBBR is one of keys to improve the performance in removal of nitrogen and phosphorus. When the SBMBBR was conducted under a two-sludge system, stable and high performance was obtained. Removal rates of phosphorus and TN reached 89.2% and 84.5% under the influent COD of 140-170 mg/L and TN of 34-42 mg/L, respectively. In the process, phosphorus content in excess sludge approached to that in the feeding, and other path of phosphorus removal was not found.
%K 双泥系统
%K 反硝化除磷
%K 低碳污水
%K 聚-β-羟基丁酸盐
%K 序批式移动床生物膜反应器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BEE877CA395B9855F85283B33661DF4D&yid=9377ED8094509821&vid=9971A5E270697F23&iid=E158A972A605785F&sid=E947FD4445DA7BA0&eid=8E4B4A74C5BF6530&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=16