A sustainable generated hydrochar from pomegranate residues for remediation of process water contaminated with Cu(II) ions
| Autor: | Hasan Sayğılı, Gülbahar Akkaya Sayğılı |
|---|---|
| Přispěvatelé: | Dicle Üniversitesi, Ziya Gökalp Eğitim Fakültesi, Matematik ve Fen Bilimleri Eğitimi Bölümü, Sayğılı, Gülbahar Akkaya |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Residue (complex analysis)
Chemistry General Chemical Engineering Langmuir adsorption model Hydrothermal carbonization Raw material Endothermic process Cu(II) ion symbols.namesake Adsorption Mechanics of Materials Yield (chemistry) symbols Heat of combustion Pomegranate residue Fourier transform infrared spectroscopy Hydrochar Nuclear chemistry |
| Popis: | WOS:000729815300001 An eco-friendly, flexible and sustainable valorization of pomegranate residue (PR) was studied by hydrothermal technology. PR was used as a feedstock for producing hydrochar (PRHC) and the effects of treatment temperature (TT; 180, 200, 220 degrees C) and treatment time (Tt; 6, 12, 24 h) on the elemental composition, yield, higher heating value (HHV) and energy density (D-E) parameters were examined. The most suitable production conditions were recommended as TT of 220 degrees C and Tt of 12 h with a HHV of 23.23 MJ/kg and D-E of 1.22 GJ/m(3). A broad spectral survey including FTIR, SEM/EDX, XPS, XRD, Raman and C-13 MAS-NMR techniques were performed to define its physicochemical characteristics. PRHC was applied as an adsorbent for removal of Cu(II) ions from water and adsorption kinetics indicated well-suitability of the data to the pseudo second order model while the Langmuir model best described the equilibrium data with a 113.64 mg/g. Thermodynamics evaluation displayed the spontaneous, feasible and endothermic adsorption of Cu(II) ions. In addition, regeneration studies have shown efficiently usage of PRHC for multiple times in wastewater treatment. (C) 2021 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved. |
| Databáze: | OpenAIRE |
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