IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v18y2021i3p1232-d489797.html
   My bibliography  Save this article

Release Mechanism, Secondary Pollutants and Denitrification Performance Comparison of Six Kinds of Agricultural Wastes as Solid Carbon Sources for Nitrate Removal

Author

Listed:
  • Yu Ling

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Guokai Yan

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Haiyan Wang

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Weiyang Dong

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Huan Wang

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Yang Chang

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Ming Chang

    (Basin Research Center for Water Pollution Control, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Congyu Li

    (Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Science, Beijing 100012, China)

Abstract

Agricultural wastes used as denitrification carbon sources have some drawbacks such as excessive organic carbon release and unclear release characteristics of nitrogen, phosphorus, and chromatic substances, which can cause adverse effects on the effluent quality during the denitrification process. The composition and surface characteristics, carbon release mechanisms, and secondary pollutant release properties of six kinds of agricultural wastes, i.e., rice straw (RS), wheat straw (WS), corn stalk (CS), corncob (CC), soybean stalk (SS), and soybean hull (SH) were studied and analyzed in this research. The denitrification performance of these agricultural wastes was also investigated extensively by batch experiments. The results showed that the carbon release basically followed the second-order reaction kinetic equation and Ritger–Peppas equation in the 120 h reaction, and it was mainly controlled by the diffusion process. The kinetic equation fitting results and bioavailability test suggested that the potential risk of excessive effluent COD of CC was the lowest due to the appropriate amount and degradability of its released carbon. The NH 4 + -N, TN, and TP in the leachate of RS were higher than those of the other five agriculture wastes, and the chroma in the leachate of WS and CS was heavier than that of the others. CC released the lowest pollutants, which resulted in slight fluctuations of effluent quality in the start-up period (1–11 d), and it had the best nitrogen removal capacity in the denitrification experiment. The average NO 3 − -N removal of CC was 5.12 mg for each batch in the stable period (11–27 d), which was higher than that of others, and less NO 2 − -N, NH 4 + -N, and COD were accumulated in the CC effluent during the whole denitrification process.

Suggested Citation

  • Yu Ling & Guokai Yan & Haiyan Wang & Weiyang Dong & Huan Wang & Yang Chang & Ming Chang & Congyu Li, 2021. "Release Mechanism, Secondary Pollutants and Denitrification Performance Comparison of Six Kinds of Agricultural Wastes as Solid Carbon Sources for Nitrate Removal," IJERPH, MDPI, vol. 18(3), pages 1-13, January.
  • Handle: RePEc:gam:jijerp:v:18:y:2021:i:3:p:1232-:d:489797
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/18/3/1232/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1660-4601/18/3/1232/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Qianyu Hang & Haiyan Wang & Zan He & Weiyang Dong & Zhaosheng Chu & Yu Ling & Guokai Yan & Yang Chang & Congyu Li, 2020. "Hydrilla verticillata –Sulfur-Based Heterotrophic and Autotrophic Denitrification Process for Nitrate-Rich Agricultural Runoff Treatment," IJERPH, MDPI, vol. 17(5), pages 1-18, February.
    2. Yuanzhe Zhao & Quan Yuan & Zan He & Haiyan Wang & Guokai Yan & Yang Chang & Zhaosheng Chu & Yu Ling & Huan Wang, 2019. "Influence of Carrier Filling Ratio on the Advanced Nitrogen Removal from Wastewater Treatment Plant Effluent by Denitrifying MBBR," IJERPH, MDPI, vol. 16(18), pages 1-12, September.
    3. Tong Wang & Haiyan Wang & Yang Chang & Zhaosheng Chu & Yaqian Zhao & Ranbin Liu, 2018. "Enhanced Nutrients Removal Using Reeds Straw as Carbon Source in a Laboratory Scale Constructed Wetland," IJERPH, MDPI, vol. 15(6), pages 1-10, May.
    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. Dongkai Chen & Peizhen Chen & Xiangqun Zheng & Weimin Cheng & Qiang Wang & Xiaocheng Wei, 2021. "Enhanced Denitrification of Integrated Sewage Treatment System by Supplementing Denitrifying Carbon Source," IJERPH, MDPI, vol. 18(18), pages 1-17, September.
    2. Yanjie Zhang & Weiyang Dong & Guokai Yan & Haiyan Wang & Huan Wang & Yang Chang & Shan Yu & Zhaosheng Chu & Yu Ling & Congyu Li, 2022. "Plant Carbon Sources for Denitrification Enhancement and Its Mechanism in Constructed Wetlands: A Review," Sustainability, MDPI, vol. 14(19), pages 1-23, October.

    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. Tong Wang & Tong Wu & Haiyan Wang & Weiyang Dong & Yaqian Zhao & Zhaosheng Chu & Guokai Yan & Yang Chang, 2020. "Comparative Study of Denitrifying-MBBRs with Different Polyethylene Carriers for Advanced Nitrogen Removal of Real Reverse Osmosis Concentrate," IJERPH, MDPI, vol. 17(8), pages 1-17, April.
    2. Yanjie Zhang & Weiyang Dong & Guokai Yan & Haiyan Wang & Huan Wang & Yang Chang & Shan Yu & Zhaosheng Chu & Yu Ling & Congyu Li, 2022. "Plant Carbon Sources for Denitrification Enhancement and Its Mechanism in Constructed Wetlands: A Review," Sustainability, MDPI, vol. 14(19), pages 1-23, 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:18:y:2021:i:3:p:1232-:d:489797. 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.