采用CSTR反应器培养好氧颗粒污泥的研究  

Study on Cultivation of Aerobic Granular Sludge in CSTR

作　　者：李媛[1] 沈耀良[1] 孙立柱[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《中国给水排水》2008年第5期10-13,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(50678107);江苏省高校自然科学研究重点项目(06KJA61020)

摘　　要：以醋酸盐作碳源的人工配水为原水,在常温（25～30℃）条件下采用连续流完全混合反应器（CSTR）培养好氧颗粒污泥。结果表明,通过采用逐步缩短HRT和提高有机负荷的方法,在60 d内培养出了成熟的好氧颗粒污泥;好氧颗粒污泥反应器的运行高效而稳定,在水力停留时间为2.82 h、有机负荷为3～4.24 kgCOD/（m^3·d）的条件下,对COD、NH4^＋-N和PO4^3--P的去除率分别可达90%、90%和70%,具有明显的脱氮除磷效果。The laboratory-scale study was carried out on the cultivation of aerobic granular sludge in a continuous-flow stirred tank reactor（CSTR） with synthetic wastewater using acetate as carbon source under ambient temperature of 25 to 30 ℃.The results show that mature aerobic granular sludge is obtained after 60 days by shortening HRT and increasing organic loading rate gradually.The reactor operates stably and efficiently,and the removal rates of COD,NH4^＋-N and PO4^3--P can reach 90%,90% and 70% respectively under the conditions of hydraulic retention time（HRT） of 2.82 hours and organic loading rate of 3 to 4.24 kgCOD/（m^3·d）,which means that the removal effect of nitrogen and phosphorus is remarkable.

关 键 词：连续流完全混合反应器 好氧颗粒污泥 脱氮除磷 水力停留时间 

分 类 号：X703[环境科学与工程—环境工程]