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\DOI{10.5802/crchim.393}
\datereceived{2025-03-05}
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%\def\TITREspecial{\relax}
%\def\cdr@specialtitle@english{Materials and Energy Valorization of Biomass and Waste : The Path for Sustainability and Circular Economy Promotion}
%\def\cdr@specialtitle@french{Valorisation \'energ\'etique et mati\`ere de la biomasse et des d\'echets : la voie de la durabilit\'e et de la promotion de l'\'economie circulaire}
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\title{Guest Editors}

\alttitle{R\'{e}dacteurs en chef invit\'{e}s}

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\guesteditor{Dr. Eng. Salah Jellali}{fx01}
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\guesteditor{Dr. Mejdi Jeguirim}{fx02}
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\noindent
\textbf{Dr. Eng. Salah Jellali} currently holds the position of senior
researcher in Water \&amp; Environmental Engineering at the Centre for
Environmental Studies and Research (CESAR) of Sultan Qaboos University.
His primary research focus revolves around local management and
governance of solid and liquid wastes within the framework of circular
economy and sustainability. A key area of his expertise involves the
conversion of organic biomass into biochars. He has coordinated and
participated in various national and international projects centered on
the reuse of biochars as efficient adsorbents for wastewater treatment
and/or as biofertilizers in agriculture. Additionally, he has actively
contributed as a member of organizing and scientific committees for
numerous international conferences on water and the environment. He has
authored over 120 peer-reviewed scientific papers and book chapters and
supervised several PhD theses and Master's students. Dr. Jellali
received the best researcher awards of SQU in
2023.\vadjust{\vfill\eject}

\textbf{Dr. Mejdi Jeguirim} is a Professor at the University of
Haute-Alsace (France) in the field of energy, process engineering, and
kinetics modeling. He has coauthored more than 200 refereed
international journal papers in his research field and is a member of
the editorial boards for the following international journals: Energy,
Energies, Energy for Sustainable Development, Biofuels, and the
International Journal of Green Energy.

He is involved as a scientific expert for more than 50 international
scientific journals as well as for several national and international
research programs. He has received the French National Research
Excellence Award for researcher with high-level scientific activity for
the 2009--2012, 2013--2016, 2017--2020, and 2021--2024 periods. Dr.
Jeguirim has appeared in the World's Top 2\% Scientists ranking
established by Stanford University since 2019.
\vspace*{2pc}

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