IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v19y2022i13p8027-d852379.html
   My bibliography  Save this article

Determining Optimal Temperature Combination for Effective Pretreatment and Anaerobic Digestion of Corn Stalk

Author

Listed:
  • Juan Li

    (Department of Environmental Science and Engineering, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, China)

  • Xiujin Li

    (Department of Environmental Science and Engineering, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, China)

  • Akiber Chufo Wachemo

    (Department of Environmental Science and Engineering, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, China
    Faculty of Water Supply and Environmental Engineering, Arba Minch University, Arba Minch P.O. Box 21, Ethiopia)

  • Weiwei Chen

    (Department of Environmental Science and Engineering, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, China)

  • Xiaoyu Zuo

    (Department of Environmental Science and Engineering, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing 100029, China)

Abstract

Temperature is one of the important factors affecting both chemical pretreatment and anaerobic digestion (AD) process of corn stalk (CS). In this work, the combined ways between pretreatment temperature (40 °C and 60 °C) and AD temperature (35 °C and 55 °C) were selected to investigate the AD performance for sodium hydroxide (NaOH) pretreated CS. Three organic loading rates (OLRs) of 1.6, 1.8 and 2.0 g·L −1 ·d −1 were studied within 255 days using continuously stirred tank reactors (CSTR). The results revealed that biogas yields of CS after pretreated were higher than that of untreated groups by 36.79–55.93% and 11.49–32.35%, respectively. When the temperature of NaOH pretreatment changed from 40 °C to 60 °C, there was no significant difference in enhancing the methane yields during the three OLRs. The mesophilic AD (MAD) of CS pretreated with 2% NaOH under 40 °C and 60 °C conditions produced 275 and 280 mL·g vs −1 methane yield at OLR of 1.6 g·L −1 ·d −1 . However, as the OLR increased, the methane yield of CS under thermophilic AD (TAD) condition was further higher than under MAD condition. Furthermore, from the perspectives of energy balance and economic analysis, AD of 40 °C-treated CS recovered more energy and TAD is less expensive. Therefore, temperature of 40 °C was considered as an appropriate for pretreatment whether in mesophilic or thermophilic AD system. On the other hand, TAD was chosen as the optimal AD temperatures for higher OLRs.

Suggested Citation

  • Juan Li & Xiujin Li & Akiber Chufo Wachemo & Weiwei Chen & Xiaoyu Zuo, 2022. "Determining Optimal Temperature Combination for Effective Pretreatment and Anaerobic Digestion of Corn Stalk," IJERPH, MDPI, vol. 19(13), pages 1-16, June.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:13:p:8027-:d:852379
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/19/13/8027/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/19/13/8027/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Magdalena Zborowska & Hanna Waliszewska & Boguslawa Waliszewska & Slawomir Borysiak & Jakub Brozdowski & Agata Stachowiak-Wencek, 2021. "Conversion of Carbohydrates in Lignocellulosic Biomass after Chemical Pretreatment," Energies, MDPI, vol. 15(1), pages 1-14, December.
    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. Xiaoliang Luo & Bincheng Zhao & Mingguo Peng & Rongyan Shen & Linqiang Mao & Wenyi Zhang, 2022. "Effects of Inorganic Passivators on Gas Production and Heavy Metal Passivation Performance during Anaerobic Digestion of Pig Manure and Corn Straw," IJERPH, MDPI, vol. 19(21), pages 1-15, 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.

      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:19:y:2022:i:13:p:8027-:d:852379. 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.