Print Email Facebook Twitter Pilot Study on Low Temperature Stability of Aerobic Granular Sludge Title Pilot Study on Low Temperature Stability of Aerobic Granular Sludge Author van Loosdrecht, Mark C.M. (TU Delft BT/Environmental Biotechnology) Hao, Xiaodi (Beijing University of Civil Engineering & Architecture) Wu, Yuanyuan (Beijing University of Civil Engineering & Architecture) Date 2022-06 Abstract 摘要： 好氧颗粒污泥技术具有占地面积小、能耗低、剩余污泥量少、抗冲击性强等优点，是一种可持续的污水处理技术。以北京某污水处理厂实际生活污水作为基质，在中试规模（有效容积为2.5 m3）反应器中进行好氧颗粒污泥培养，研究了颗粒污泥在低温条件下的稳定性。中试自夏季开始运行到次年春季结束，共计运行260 d。结果表明，采用我国实际低碳源市政污水可以培养出好氧颗粒污泥，污泥颗粒化程度可达94%，SVI5/SVI30为1.1 ~ 1.3。冬季低温会造成颗粒污泥的枝状结构增多、丝状菌生长，进而引起颗粒化比例略有下降，为80%~91%，污泥平均粒径降低，SVI5/SVI30升高至1.5 ~ 1.8。在冬季低温条件下，通过优化调控进水流量、曝气时长、曝气过程DO浓度可提高脱氮效率。中试期间各阶段反应器出水COD、TP、NH4+-N以及TN均可以满足GB 18918—2002的一级A排放标准，但是低温条件下TN去除率略有下降（降幅为6%~9%），存在一定超标风险 Subject Aerobic granular sludgewastewaterlow-carbon source sewagegranulationlow temperaturenutrient removal To reference this document use: http://resolver.tudelft.nl/uuid:7fcf75b3-1046-41c7-a04f-05aecfd6c208 DOI https://doi.org/10.19853/j.zgjsps.1000-4602.2022.11.010 Embargo date 2023-07-01 ISSN 1000-4602 Source Zhongguo Geshui Paishui (China Water & Wastewater), 38 (11), 56-61 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 Mark C.M. van Loosdrecht, Xiaodi Hao, Yuanyuan Wu Files PDF _.pdf 1.86 MB Close viewer /islandora/object/uuid:7fcf75b3-1046-41c7-a04f-05aecfd6c208/datastream/OBJ/view