Hydrothermal Carbonization of Olive Pomace Using Olive Mill Wastewater as a Conversion Media

Ahmed Amine Azzaz, Mejdi Jeguirim*, Camélia Ghimbeu, Simona Bennici, Lionel Limousy, Salah Jellali

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In the present work, hydrothermal carbonization of olive pomace was investigated for different conversion media at various temperatures. The produced hydrochars were characterized using different analytical techniques. The experiments show that the use of olive mill wastewater (OMW) as a carbonization media increased hydrochar recovery compared to the distilled water. Such results indicate the possible recovery of the OMW organic matter into hydrochar. However, the proximate analysis shows that hyrochars prepared in OMW media has higher volatile matter contents and low fixed carbon and ash contents compared to the hydrochar prepared in water media. Furthermore, morphological differences were observed with specific formation of carbon micro-spheres detected when using distilled water as reaction medium. These characterizations may guide for suitable applications for both hydrochars.

Original languageEnglish
Title of host publicationRecent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions - Proceedings of 2nd Euro-Mediterranean Conference for Environmental Integration, EMCEI-2 2019
EditorsMohamed Ksibi, Achraf Ghorbal, Sudip Chakraborty, Helder I. Chaminé, Maurizio Barbieri, Giulia Guerriero, Olfa Hentati, Abdelazim Negm, Anthony Lehmann, Jörg Römbke, Armando Costa Duarte, Elena Xoplaki, Nabil Khélifi, Gilles Colinet, João Miguel Dias, Imed Gargouri, Eric D. Van Hullebusch, Benigno Sánchez Cabrero, Settimio Ferlisi, Chedly Tizaoui, Amjad Kallel, Sami Rtimi, Sandeep Panda, Philippe Michaud, Jaya Narayana Sahu, Mongi Seffen, Vincenzo Naddeo
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages5
ISBN (Print)9783030512095
Publication statusPublished - 2021
Event2nd Euro-Mediterranean Conference on Environmental Integration, EMCEI 2019 - Sousse, Tunisia
Duration: Oct 10 2019Oct 13 2019

Publication series

NameEnvironmental Science and Engineering
ISSN (Print)1863-5520
ISSN (Electronic)1863-5539


Conference2nd Euro-Mediterranean Conference on Environmental Integration, EMCEI 2019


  • Hydrochar
  • Hydrothermal carbonization
  • Morphological properties
  • Olive mill wastewater
  • Olive pomace
  • Proximate analysis

ASJC Scopus subject areas

  • Environmental Engineering
  • Information Systems

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