IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v154y2020icp1252-1262.html
   My bibliography  Save this article

Assessment of electrocoagulation as a pretreatment method of olive mill wastewater towards alternative processes for biofuels production

Author

Listed:
  • Ntaikou, I.
  • Antonopoulou, G.
  • Vayenas, D.
  • Lyberatos, G.

Abstract

In the present study, electrocoagulation (EC), alone or in combination with precipitation or centrifugation, was assessed as a potential pretreatment method for enhanced production of biofuels from 3-phase decanter olive mill wastewater (OMW). Experiments were performed using undiluted and diluted OMW in an EC reactor, operating with a current of 2 A and either Al or Fe electrode materials. Subsequently, diluted OMW was subjected to EC followed by precipitation or centrifugation. The effect of current density (0.05, 0.5 or 1 A) on the combined EC – centrifugation process was assessed and a high reduction of organics was observed for the higher current applied. The different fractions of the pretreated effluents were used as substrates for methane, hydrogen as well as for bioethanol production and the maximum energy recovery was determined in each case. It was shown that, EC at a current of 2 A or further combination with physical methods led to low biofuels yields. However, reduction of the current during EC to 0.05 A or 0.5 A, led to high methane and ethanol yields, with the best scenario being the production of methane yielding an energy equivalent of 1902 kJ/L OMW.

Suggested Citation

  • Ntaikou, I. & Antonopoulou, G. & Vayenas, D. & Lyberatos, G., 2020. "Assessment of electrocoagulation as a pretreatment method of olive mill wastewater towards alternative processes for biofuels production," Renewable Energy, Elsevier, vol. 154(C), pages 1252-1262.
    • Handle: RePEc:eee:renene:v:154:y:2020:i:c:p:1252-1262
    DOI: 10.1016/j.renene.2020.03.108
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148120304407
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2020.03.108?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Wala'a Alshiekh Abdallah & Omar Zimmo & Eldon R. Rene & Peter Van Der Steen, 2017. "Anaerobic biodegradation of olive mill wastewater: batch and UASB reactor performance," International Journal of Global Environmental Issues, Inderscience Enterprises Ltd, vol. 16(1/2/3), pages 162-175.
    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. Ioanna Ntaikou & Georgia Antonopoulou & Gerasimos Lyberatos, 2020. "Sustainable Second-Generation Bioethanol Production from Enzymatically Hydrolyzed Domestic Food Waste Using Pichia anomala as Biocatalyst," Sustainability, MDPI, vol. 13(1), pages 1-16, December.
    2. Antonopoulou, G. & Bampos, G. & Ntaikou, I. & Alexandropoulou, M. & Dailianis, S. & Bebelis, S. & Lyberatos, G., 2023. "The biochemical and electrochemical characteristics of a microbial fuel cell used to produce electricity from olive mill wastewater," Energy, Elsevier, vol. 282(C).
    3. Rakhmania & Hesam Kamyab & Muhammad Ali Yuzir & Norhayati Abdullah & Le Minh Quan & Fatimah Azizah Riyadi & Riadh Marzouki, 2022. "Recent Applications of the Electrocoagulation Process on Agro-Based Industrial Wastewater: A Review," Sustainability, MDPI, vol. 14(4), pages 1-19, February.

    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:eee:renene:v:154:y:2020:i:c:p:1252-1262. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

      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.