IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v12y2020i18p7611-d414001.html
   My bibliography  Save this article

Effect of the C/N Ratio on Biodegradation of Ciprofloxacin and Denitrification from Low C/N Wastewater as Assessed by a Novel 3D-BER System

Author

Listed:
  • Mahdi Hassan

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Guangcan Zhu

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Zhonglian Yang

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Yongze Lu

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Yan Lang

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Liying Gong

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

  • Huang Shan

    (School of Energy and Environment, Southeast University, Nanjing 210096, China
    State Key Laboratory of Environmental Medicine Engineering of the Ministry of Education, Southeast University, Nanjing 210096, China)

Abstract

Emerging pollutants in the form of pharmaceuticals have drawn international attention during the past few decades. Ciprofloxacin (CIP) is a common drug widely found in effluents from hospitals, industrial and different wastewater treatment plants, as well as rivers. In this work, the lab-scale 3D-BER system was established, and more than 90% of the antibiotic CIP was removed from Low C/N wastewater. The best results were obtained with the current intensity being taken into account, and a different C/N ratio significantly improved the removal of CIP and nitrates when the ideal conditions were C/N = 1.5–3.5, pH = 7.0–7.5 and I = 60 mA. The highest removal efficiency occurred when CIP = 94.2%, NO 3 − -N = 95.5% and total nitrogen (TN) = 84.3%, respectively. In this novel system, the autotrophic-heterotrophic denitrifying bacteria played a vital role in the removal of CIP and an enhanced denitrification process. Thus, autotrophic denitrifying bacteria uses CO 2 and H 2 as carbon sources to reduce nitrates to N 2 . This system has the assortment and prosperous community revealed at the current intensity of 60 mA, and the analysis of bacterial community structure in effluent samples fluctuates under different conditions of C/N ratios. Based on the results of LC-MS/MS analysis, the intermediate products were proposed after efficient biodegradation of CIP. The microbial community on biodegrading was mostly found at phylum, and the class level was dominantly responsible for the NO 3 − -N and biodegradation of CIP. This work can provide some new insights towards the biodegradation of CIP and the efficient removal of nitrates from low C/N wastewater treatment through the novel 3D-BER system.

Suggested Citation

  • Mahdi Hassan & Guangcan Zhu & Zhonglian Yang & Yongze Lu & Yan Lang & Liying Gong & Huang Shan, 2020. "Effect of the C/N Ratio on Biodegradation of Ciprofloxacin and Denitrification from Low C/N Wastewater as Assessed by a Novel 3D-BER System," Sustainability, MDPI, vol. 12(18), pages 1-19, September.
  • Handle: RePEc:gam:jsusta:v:12:y:2020:i:18:p:7611-:d:414001
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/12/18/7611/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/12/18/7611/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Sai Ge & Jun Ma & Lei Liu & Zhiming Yuan, 2020. "The Impact of Exogenous Aerobic Bacteria on Sustainable Methane Production Associated with Municipal Solid Waste Biodegradation: Revealed by High-Throughput Sequencing," Sustainability, MDPI, vol. 12(5), pages 1-11, February.
    Full references (including those not matched with items on IDEAS)

    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. Han Ke & Jinghang Li & Xuanqi Zhang & Jie Hu, 2022. "Bacterial Community Structure and Predicted Metabolic Function of Landfilled Municipal Solid Waste in China," Sustainability, MDPI, vol. 14(6), pages 1-18, March.
    2. Kyeongwon Kim & Young Mok Heo & Seokyoon Jang & Hanbyul Lee & Sun-Lul Kwon & Myung Soo Park & Young Woon Lim & Jae-Jin Kim, 2020. "Diversity of Trichoderma spp. in Marine Environments and Their Biological Potential for Sustainable Industrial Applications," Sustainability, MDPI, vol. 12(10), pages 1-12, May.

    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:jsusta:v:12:y:2020:i:18:p:7611-:d:414001. 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.