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<p>Amid growing concerns regarding water quality and food security, our study pioneers a dual-purpose approach utilizing the lentil hydrothermal carbonization (HTC) approach. We present activated carbon derived from lentils, showcasing exceptional efficiency with a remarkable &gt; 99% removal of Methylene Blue (MB), starting with an initial concentration of 4.4&#xa0;µg/ml. Optimization of activation parameters revealed a straightforward and environmentally friendly process, eliminating the need for an inert atmosphere. The kinetic study emphasized a close alignment with a first-order reaction model, with a rate constant of 0.127 <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="43615_2025_503_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="25" /> </InlineMediaObject> <EquationSource Format="TEX">\(\:{s}^{-1}\)</EquationSource> </InlineEquation>. The activated carbon’s performance was further evaluated for its ability to remove food dyes, achieving removal efficiencies of 32% for red dye and 65% for green dye. Finally, the lentil-derived supernatant, a byproduct of HTC, proved instrumental in promoting hydroponic maize growth, manifesting significant improvements in shoot and root parameters, increasing their weight by 94% and 200%, respectively. This study presents an innovative and sustainable solution at the confluence of water purification and agricultural enrichment, contributing to the global discourse on resource efficiency and waste minimization.</p>

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Lentil Hydrothermal Carbonization: A Dual Solution for Water Purification and Growth Enhancement

  • 期刊论文

  • 发表日期：

    2025年1月29日

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  • Taher Diab,
  • Ahmad Hejazi,
  • Muhamad Hugerat,
  • Sare Asli,
  • Mahmud Diab

摘要

Amid growing concerns regarding water quality and food security, our study pioneers a dual-purpose approach utilizing the lentil hydrothermal carbonization (HTC) approach. We present activated carbon derived from lentils, showcasing exceptional efficiency with a remarkable > 99% removal of Methylene Blue (MB), starting with an initial concentration of 4.4 µg/ml. Optimization of activation parameters revealed a straightforward and environmentally friendly process, eliminating the need for an inert atmosphere. The kinetic study emphasized a close alignment with a first-order reaction model, with a rate constant of 0.127 \(\:{s}^{-1}\) . The activated carbon’s performance was further evaluated for its ability to remove food dyes, achieving removal efficiencies of 32% for red dye and 65% for green dye. Finally, the lentil-derived supernatant, a byproduct of HTC, proved instrumental in promoting hydroponic maize growth, manifesting significant improvements in shoot and root parameters, increasing their weight by 94% and 200%, respectively. This study presents an innovative and sustainable solution at the confluence of water purification and agricultural enrichment, contributing to the global discourse on resource efficiency and waste minimization.