摘要
以SBR反应器分别采用一段式和二段式培养方法对反硝化除磷菌进行了驯化富集。结果表明,一段式和二段式培养方法驯化完成后的活性污泥沉降性能均较好,污泥体积指数(SVI)分别约为60、50mL/g,反硝化除磷菌占聚磷菌的比例达到了77%和71%。两种培养方法下反硝化除磷菌PO34--P去除率和脱氮率分别达到了97%和95%以上,缺氧结束时水中PO43--P质量浓度小于1mg/L。驯化完成后污泥的含磷率最高达到了3.7%(质量分数)。因此,采用一段式或二段式驯化方法均能实现反硝化除磷菌的有效富集。
The enrichment culture of denitrifying phosphorus-removing bacteria （DPB） in sequencing batch reactors were studied by two processes： one-phase model and two-phase model. The results demonstrated that the sludge settleahility was better after acclimation by the two processes,showing SVI of 60 mL/g and 50 mL/g,and the RDPB reached 77% and 71%, respectively. Phosphorus and nitrate removal efficiencies in the two processes were above 97% and 95%, respectively. The concentration of phosphorus at the end of anoxic cycle was lower than 1 mg/L,and the phosphorus content in the sludge reached 3.7 %. Thus,the DPB was developed and functioning effectively in both processes.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2008年第12期24-27,共4页
Environmental Pollution & Control
基金
山东省科技计划重大专项(No.2005GG21006001)
山东建筑大学校内基金资助项目(No.XN040105)
关键词
反硝化除磷菌
SBR
污泥驯化
污泥含磷率
denitrifying phosphorus-removing bacteria
SBR
sludge culture
phosphorus content in sludge
