好氧颗粒污泥SBR中试运行效能评价  

Evaluation of Operation Efficiency of Pilot-scale SBR with Aerobic Granular Sludge

作　　者：丁立斌[1] 马俊杰 李军[1] 陈涛[1] 周延年[1] 谢锴[1] 黄国贤 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310014 [2]海宁市水务投资集团有限公司,浙江海宁314400

出　　处：《中国给水排水》2014年第21期87-90,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(50878195);浙江省重点科技计划项目(2008C23083)

摘　　要：在某城镇污水处理厂建立一套SBR中试装置,最大处理能力可达120 m3/d,通过提供合适的选择压,成功培养出了高质量的好氧颗粒污泥,运行至第87天,颗粒平均粒径在300μm左右,SVI值为38 m L/g,MLSS为8 550 mg/L,对NH+4-N和BOD5的平均去除率分别可达到99%和95%以上。与该污水厂传统活性污泥SBR相比,好氧颗粒污泥SBR大大降低了占地面积,提高了处理效率。利用层次分析法对好氧颗粒污泥技术进行评价,结果表明,由于好氧颗粒污泥系统较低的技术成熟度,好氧颗粒污泥SBR中试的综合处理效能略低于该污水厂的SBR工艺,但也显示出好氧颗粒污泥技术已接近实际应用。A pilot-scale sequencing batch reactor （SBR） system with the maximum treating capac- ity of 120 m3/d was built in a town wastewater treatment plant. Aerobic granules with high quality were cultivated in the pilot-scale SBR by providing suitable selecting pressure. After operating for 87 d, ma- ture granules with a mean diameter of 300 μm, sludge volume index of 38 mL/g and mixed liquor sus- pended solids of 8 550 mg/L were obtained. The average removal rates of NH4＋ - N and BOD5 could reach to more than 99% and 95% respectively. Compared with the SBR with conventional activated sludge in this WWTP, the pilot-scale SBR with aerobic granular sludge reduced the footprint and im- proved the treating efficiency. Analytic hierarchy process was used to evaluate the aerobic granular sludge technology. The results showed that the pilot-scale SBR with aerobic granular sludge had slightly lower treatment efficiency than the SBR with conventional activated sludge due to the relatively low technologi- cal maturity of aerobic granular sludge technology. However, it still showed that aerobic granular sludge technology was close to practical application.

关 键 词：好氧颗粒污泥 SBR 中试 层次分析法 

分 类 号：X703[环境科学与工程—环境工程]