Rapid aerobic granulation in an SBR treating piggery wastewater by seeding sludge from a municipal WWTP

查看全文 作　　者：Jun [1]Liu;Jun [1]Li;Xiaodong [2]Wang;Qi [3]Zhang;Helen [4]Littleton

机构地区：[1]College of Environment,Zhejiang University of Technology,Hangzhou 310014,China;[2]College of Civil Engineering and Architecture,Zhejiang University of Technology,Hangzhou 310014,China;[3]Institute of Quality and Standard for Agro-products,Zhejiang Academy of Agricultural Science,Hangzhou 310021,China;[4]WEF Municipal WWT Design Committee,Richboro,PA 18954,USA

出　　处：《Journal of Environmental Sciences》索引2017年第29卷第1期,共10页

基　　金：supported by the National Nature Science Foundation of China(No.51478433) 摘　　要：Aerobic sludge granulation was rapidly obtained in the erlenmeyer bottle and sequencing batch reactor(SBR) using piggery wastewater.Aerobic granulation occurred on day 3 and granules with mean diameter of 0.2 mm and SVI_(30) of 20.3 mL/g formed in SBR on day 18.High concentrations of Ca and Fe in the raw piggery wastewater and operating mode accelerated aerobic granulation,even though the seed sludge was from a municipal wastewater treatment plant(WWTP).Alpha diversity analysis revealed Operational Taxonomic Units,Shannon,ACE and Chao 1 indexes in aerobic granules were 2013,5.51,4665.5 and 3734.5,which were obviously lower compared to seed sludge.The percentages of major microbial communities,such as Protect)acteria,Bacteroidetes and Firmicutes were obviously higher in aerobic granules than seed sludge.Chlorqflexi,Planctomycetes,Actinobactena,TM7 and Aridobacteria showed much higher abundances in the inoculum.The main reasons might be the characteristics of raw piggery wastewater and granule structure. 关键词：好氧污泥颗粒化城市污水处理厂猪场废水接种污泥 SBR 好氧颗粒污泥制粒市政

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Rapid aerobic granulation in an SBR treating piggery wastewater by seeding sludge from a municipal WWTP

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