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Olive Mill Wastewater: From a Pollutant to Green Fuels, Agricultural Water Source and Bio-Fertilizer—Part 1. The Drying Kinetics

Author

Listed:
  • Mejdi Jeguirim

    (Institut de Sciences des Matériaux de Mulhouse, UMR 7661 CNRS, 15 rue Jean Starcky, 68057 Mulhouse, France)

  • Patrick Dutournié

    (Institut de Sciences des Matériaux de Mulhouse, UMR 7661 CNRS, 15 rue Jean Starcky, 68057 Mulhouse, France)

  • Antonis A. Zorpas

    (Faculty of Pure and Applied Sciences, Environmental Conservation and Management, Lab of Chemical Engineering and Engineering Sustainability, Cyprus Open University, Giannou Kranidioti 33, 2252 Latsia, Nicosia, Cyprus)

  • Lionel Limousy

    (Institut de Sciences des Matériaux de Mulhouse, UMR 7661 CNRS, 15 rue Jean Starcky, 68057 Mulhouse, France)

Abstract

Olive Mill Wastewater (OMWW) treatment is considered to be one of the main challenges that Mediterranean countries face. Although several procedures and technologies are mentioned in the literature, these techniques have several disadvantages or have been limited to laboratory pilot validation without posterior industrial projection. Recently, an advanced environmental friendly strategy for the recovery of OMWW was established involving the impregnation of OMWW on dry biomasses, drying of these impregnated samples, and finally green fuels and biochar production. This established strategy revealed that the drying step is crucial for the success of the entire recovery process. Hence, two impregnated samples were prepared through OMWW impregnation on sawdust (IS) and olive mill solid waste (ISW). The drying kinetics of OMWW and impregnated samples (IS and ISW) were examined in a convective dryer (air velocity range from 0.7–1.3 m/s and the temperature from 40–60 °C). The experimental results indicated that the drying of the impregnated samples occurred twice as fast as for the OMWW sample. Such behavior was attributed to the remaining thin layer of oil on the OMWW surface Furthermore, the Henderson and Pabis model showed the suitable fit of the drying curves with a determination coefficient R 2 above 0.97. The drying rates were extracted from the mathematical models and the drying process was analyzed. The coefficient of effective diffusivity varied between 2.8 and 11.7 × 10 −10 m 2 /s. In addition, the activation energy values ranged between 28.7 and 44.9 kJ/mol. These values were in the same range as those obtained during the drying of other agrifood byproducts. The final results could be very helpful to engineers aiming to improve and optimize the OMWW drying process.

Suggested Citation

  • Mejdi Jeguirim & Patrick Dutournié & Antonis A. Zorpas & Lionel Limousy, 2017. "Olive Mill Wastewater: From a Pollutant to Green Fuels, Agricultural Water Source and Bio-Fertilizer—Part 1. The Drying Kinetics," Energies, MDPI, vol. 10(9), pages 1-16, September.
  • Handle: RePEc:gam:jeners:v:10:y:2017:i:9:p:1423-:d:112205
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    References listed on IDEAS

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    1. Koukouch, Abdelghani & Idlimam, Ali & Asbik, Mohamed & Sarh, Brahim & Izrar, Boujemaa & Bostyn, Stéphane & Bah, Abdellah & Ansari, Omar & Zegaoui, Omar & Amine, Amina, 2017. "Experimental determination of the effective moisture diffusivity and activation energy during convective solar drying of olive pomace waste," Renewable Energy, Elsevier, vol. 101(C), pages 565-574.
    2. Irene Montero & María Teresa Miranda & Francisco José Sepúlveda & José Ignacio Arranz & Carmen Victoria Rojas & Sergio Nogales, 2015. "Solar Dryer Application for Olive Oil Mill Wastes," Energies, MDPI, vol. 8(12), pages 1-15, December.
    3. Kraiem, Nesrine & Jeguirim, Mejdi & Limousy, Lionel & Lajili, Marzouk & Dorge, Sophie & Michelin, Laure & Said, Rachid, 2014. "Impregnation of olive mill wastewater on dry biomasses: Impact on chemical properties and combustion performances," Energy, Elsevier, vol. 78(C), pages 479-489.
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    Cited by:

    1. Tilia Dahou & Patrick Dutournié & Lionel Limousy & Simona Bennici & Nicolas Perea, 2019. "Recovery of Low-Grade Heat (Heat Waste) from a Cogeneration Unit for Woodchips Drying: Energy and Economic Analyses," Energies, MDPI, vol. 12(3), pages 1-17, February.
    2. Antonis A. Zorpas & Maria K. Doula & Mejdi Jeguirim, 2021. "Waste Strategies Development in the Framework of Circular Economy," Sustainability, MDPI, vol. 13(23), pages 1-5, December.
    3. Galán-Martín, Ángel & Contreras, María del Mar & Romero, Inmaculada & Ruiz, Encarnación & Bueno-Rodríguez, Salvador & Eliche-Quesada, Dolores & Castro-Galiano, Eulogio, 2022. "The potential role of olive groves to deliver carbon dioxide removal in a carbon-neutral Europe: Opportunities and challenges," Renewable and Sustainable Energy Reviews, Elsevier, vol. 165(C).
    4. Ibn Ferjani, A. & Jeguirim, M. & Jellali, S. & Limousy, L. & Courson, C. & Akrout, H. & Thevenin, N. & Ruidavets, L. & Muller, A. & Bennici, S., 2019. "The use of exhausted grape marc to produce biofuels and biofertilizers: Effect of pyrolysis temperatures on biochars properties," Renewable and Sustainable Energy Reviews, Elsevier, vol. 107(C), pages 425-433.
    5. Guan-Bang Chen & Jia-Wen Li & Hsien-Tsung Lin & Fang-Hsien Wu & Yei-Chin Chao, 2018. "A Study of the Production and Combustion Characteristics of Pyrolytic Oil from Sewage Sludge Using the Taguchi Method," Energies, MDPI, vol. 11(9), pages 1-17, August.
    6. Jeguirim, Mejdi & Goddard, Mary-Lorène & Tamosiunas, Andrius & Berrich-Betouche, Emna & Azzaz, Ahmed Amine & Praspaliauskas, Marius & Jellali, Salah, 2020. "Olive mill wastewater: From a pollutant to green fuels, agricultural water source and bio-fertilizer. Biofuel production," Renewable Energy, Elsevier, vol. 149(C), pages 716-724.

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