IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v16y2019i20p4029-d278775.html
   My bibliography  Save this article

Physicochemical and Biological Effects on Activated Sludge Performance and Activity Recovery of Damaged Sludge by Exposure to CeO 2 Nanoparticles in Sequencing Batch Reactors

Author

Listed:
  • Qian Feng

    (Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
    College of Environment, Hohai University, Nanjing 210098, China)

  • Yaqing Sun

    (College of Environment, Hohai University, Nanjing 210098, China)

  • Yang Wu

    (College of Environment, Hohai University, Nanjing 210098, China)

  • Zhaoxia Xue

    (Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
    College of Environment, Hohai University, Nanjing 210098, China)

  • Jingyang Luo

    (Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
    College of Environment, Hohai University, Nanjing 210098, China)

  • Fang Fang

    (Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
    College of Environment, Hohai University, Nanjing 210098, China)

  • Chao Li

    (Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
    College of Environment, Hohai University, Nanjing 210098, China)

  • Jiashun Cao

    (Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
    College of Environment, Hohai University, Nanjing 210098, China)

Abstract

Recently, the growing release of CeO 2 nanoparticles (CeO 2 NPs) into sewage systems has attracted great concern. Several studies have extensively explored CeO 2 NPs’ potential adverse impacts on wastewater treatment plants; however, the impaired activated sludge recovery potentials have seldom been addressed to date. To explore the physicochemical and biological effects on the activated sludge performance and activity recovery of damaged sludge by exposure to CeO 2 NPs in sequencing batch reactors (SBRs), four reactors and multiple indicators including water quality, key enzymes, microbial metabolites, the microbial community structure and toxicity were used. Results showed that 10-week exposure to higher CeO 2 NP concentration (1, 10 mg/L) resulted in a sharp decrease in nitrogen and phosphorus removal efficiencies, which were consistent with the tendencies of key enzymes. Meanwhile, CeO 2 NPs at concentrations of 0.1, 1, and 10 mg/L decreased the secretion of tightly bound extracellular polymeric substances to 0.13%, 3.14%, and 28.60%, respectively, compared to the control. In addition, two-week recovery period assays revealed that the functional bacteria Proteobacteria , Nitrospirae and Planctomycetes recovered slightly at the phyla level, as analyzed through high-throughput sequencing, which was consistent with the small amount of improvement of the effluent performance of the system. This reflected the small possibility of the activity recovery of damaged sludge.

Suggested Citation

  • Qian Feng & Yaqing Sun & Yang Wu & Zhaoxia Xue & Jingyang Luo & Fang Fang & Chao Li & Jiashun Cao, 2019. "Physicochemical and Biological Effects on Activated Sludge Performance and Activity Recovery of Damaged Sludge by Exposure to CeO 2 Nanoparticles in Sequencing Batch Reactors," IJERPH, MDPI, vol. 16(20), pages 1-15, October.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:20:p:4029-:d:278775
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/16/20/4029/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/16/20/4029/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Yong Li & Jiejie Zhang & Jianqiang Zhang & Wenlai Xu & Zishen Mou, 2019. "Microbial Community Structure in the Sediments and Its Relation to Environmental Factors in Eutrophicated Sancha Lake," IJERPH, MDPI, vol. 16(11), pages 1-15, May.
    2. Xiaohui Wang & Yu Xia & Xianghua Wen & Yunfeng Yang & Jizhong Zhou, 2014. "Microbial Community Functional Structures in Wastewater Treatment Plants as Characterized by GeoChip," PLOS ONE, Public Library of Science, vol. 9(3), pages 1-10, March.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Yongkui Yang & Longfei Wang & Feng Xiang & Lin Zhao & Zhi Qiao, 2020. "Activated Sludge Microbial Community and Treatment Performance of Wastewater Treatment Plants in Industrial and Municipal Zones," IJERPH, MDPI, vol. 17(2), pages 1-15, January.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Stefania Paduano & Isabella Marchesi & Maria Elisabetta Casali & Federica Valeriani & Giuseppina Frezza & Elena Vecchi & Luca Sircana & Vincenzo Romano Spica & Paola Borella & Annalisa Bargellini, 2020. "Characterisation of Microbial Community Associated with Different Disinfection Treatments in Hospital hot Water Networks," IJERPH, MDPI, vol. 17(6), pages 1-17, March.
    2. Haomiao Cheng & Ling Cheng & Liang Wang & Tengyi Zhu & Wei Cai & Zulin Hua & Yulin Wang & Wenfen Wang, 2019. "Changes of Bacterial Communities in Response to Prolonged Hydrodynamic Disturbances in the Eutrophic Water-Sediment Systems," IJERPH, MDPI, vol. 16(20), pages 1-13, October.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:16:y:2019:i:20:p:4029-:d:278775. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.