Pilot Study on Low Temperature Stability of Aerobic Granular Sludge

Translated title of the contribution: 好氧颗粒污泥低温稳定性中试研究

Mark C.M. van Loosdrecht, Xiaodi Hao*, Yuanyuan Wu

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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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
Translated title of the contribution好氧颗粒污泥低温稳定性中试研究
Original languageChinese (Traditional)
Article number10. 19853/j. zgjsps. 1000-4602. 2022. 11. 010
Pages (from-to)56-61
Number of pages6
JournalZhongguo Geshui Paishui (China Water & Wastewater)
Volume38
Issue number11
DOIs
Publication statusPublished - Jun 2022

Bibliographical note

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Keywords

  • Aerobic granular sludge
  • wastewater
  • low-carbon source sewage
  • granulation
  • low temperature
  • nutrient removal

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