曝气方式对好氧颗粒污泥性能的影响  

EFFECT OF AERATION MODES ON AEROBIC GRANULAR SLUDGE PERFORMANCE

作　　者：杨亚红[1] 李艾莉 张玉蓉[1] 

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《低温建筑技术》2015年第6期22-25,共4页Low Temperature Architecture Technology

摘　　要：好氧颗粒具有良好的沉降性能、较高的生物量和高容积负荷条件下降解高浓度有机废水的良好生物活性,是提高生物反应器效能的重要物质。与传统的活性污泥法相比,可简化工艺流程、减少污水处理系统的容积和占地面积、降低投资和成本。随着对好氧颗粒污泥研究的不断深入,将好氧颗粒污泥应用于实际污水处理得到越来越多的关注。文中以校园生活污水为处理对象,在SBR反应器中接种絮状污泥,通过增加曝气头个数,在低表观气速的前提下成功培养出稳定的好氧颗粒污泥,MLSS达7000mg·L-1左右,SVI最终稳定在38ml·g-1,COD、P、NH3-N的去除率分别达到89%、87.81%、98.72%,说明好氧颗粒污泥对实际生活污水具有较好的处理效果,并且达到了节约能源的目的。The aerobic particles have good settling properties, high biomass and better bioactivity of degrading high concentration organic waste -water under high -volume load conditions, and it is an im- portant material to improve the performance of the bioreactor. Compared with conventional activated sludge process, aerobic granular sludge simplifies the process, reduces the volume and footprint of sewage treatment systems and decreases cost. With the devolopment of research on aerdoic granulor studge, utilization of aerobic granular sludge for actual sewerage is getting more and more attention. This paper took the campus sewage as treatment object in the SBR （ Sequencing Batch Reactor）. The experiment used flocculent sludge as the firsthand sludge, through increasing quantity of aeration machines. Aerobic granu- lar sludge was cultured successfully in the condition of lower superficial gas velocity. MISS achieved a- bout 7000mg· L-1 ,SVI eventually stabilized at 38mL· g-1, COD,P, NH3 N removal rate reached 89% ,87.81% ,98.72%. It means the aerobic granular sludge has a better effect on treating actual sani- tary waste, and also energy -efficient.

关 键 词：SBR 曝气方式 颗粒污泥 节能 

分 类 号：TU992.3[建筑科学—市政工程]