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Sustainable Valorization of Four Types of Fruit Peel Waste for Biogas Recovery and Use of Digestate for Radish ( Raphanus sativus L. cv. Pusa Himani) Cultivation

Author

Listed:
  • Arwa A. AL-Huqail

    (Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
    These authors contributed equally to this work.)

  • Vinod Kumar

    (Agro-Ecology and Pollution Research Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India)

  • Rohit Kumar

    (Agro-Ecology and Pollution Research Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India)

  • Ebrahem M. Eid

    (Biology Department, College of Science, King Khalid University, Abha 61321, Saudi Arabia
    Botany Department, Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
    These authors contributed equally to this work.)

  • Mostafa A. Taher

    (Biology Department, Faculty of Science and Arts, King Khalid University, Mohail Assir 61321, Saudi Arabia
    Botany Department, Faculty of Science, Aswan University, Aswan 81528, Egypt)

  • Bashir Adelodun

    (Department of Agricultural and Biosystems Engineering, University of Ilorin, PMB 1515, Ilorin 240003, Nigeria
    Department of Agricultural Civil Engineering, Kyungpook National University, Daegu 41944, Korea)

  • Sami Abou Fayssal

    (Department of Agronomy, Faculty of Agronomy, University of Forestry, 10 Kliment Ohridski Blvd, 1797 Sofia, Bulgaria
    Department of Plant Production, Faculty of Agriculture, Lebanese University, Beirut 1302, Lebanon)

  • Boro Mioč

    (University of Zagreb, Faculty of Agriculture, Svetosimunska 25, 10000 Zagreb, Croatia)

  • Valentino Držaić

    (University of Zagreb, Faculty of Agriculture, Svetosimunska 25, 10000 Zagreb, Croatia)

  • Madhumita Goala

    (Nehru College, Pailapool, Affiliated Assam University, Silchar 788098, India)

  • Pankaj Kumar

    (Agro-Ecology and Pollution Research Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to Be University), Haridwar 249404, Uttarakhand, India
    These authors contributed equally to this work.)

  • Ivan Širić

    (University of Zagreb, Faculty of Agriculture, Svetosimunska 25, 10000 Zagreb, Croatia)

Abstract

Food waste has become a challenging global issue due to its inefficient management, particularly in low and middle-income countries. Among food waste items, fruit peel waste (FPW) is generated in enormous quantities, especially from juice vendors, resulting in arduous tasks for waste management personnel and authorities. However, considering the nutrient and digestible content of organic wastes, in this study four types of FPW (pineapple: PA; sweet lemon: SL; kinnow: KN; and pomegranate: PG) were investigated for their potential use within biogas production, using conventional and electro-assisted anaerobic reactors (CAR and EAR). In addition, the FPW digestate obtained after the biogas production experiments was considered as a soil bio-fertilizer under radish ( Raphanus sativus L. cv. Pusa Himani) cultivation. In the results, all four types of FPW had digestible organic fractions, as revealed from physicochemical and proximate analysis. However, PA-based FPW yielded the maximum biogas (1422.76 ± 3.10 mL/62.21 ± 0.13% CH 4 ) using the EAR system, compared to all other FPW. Overall, the decreasing order of biogas yield obtained from FPW was observed as PA > PG > SL > KN. The kinetic analysis of the biogas production process showed that the modified Gompertz model best fitted in terms of coefficient of determination ( R 2 > 0.99) to predict cumulative biogas production ( y ), lag phase ( λ ), and specific biogas production rate ( µ m ). Moreover, fertilizer application of spent FPW digestate obtained after biogas production significantly improved the arable soil properties ( p < 0.05). Further, KN-based FPW digestate mixing showed maximum improvement in radish plant height (36.50 ± 0.82 cm), plant spread (70.80 ± 3.79 cm 2 ), number of leaves (16.12 ± 0.05), fresh weight of leaves (158.08 ± 2.85 g/plant), fruit yield (140.10 ± 2.13 g/plant), and fruit length (25.05 ± 0.15 cm). Thus, this study suggests an efficient method of FPW management through biogas and crop production.

Suggested Citation

  • Arwa A. AL-Huqail & Vinod Kumar & Rohit Kumar & Ebrahem M. Eid & Mostafa A. Taher & Bashir Adelodun & Sami Abou Fayssal & Boro Mioč & Valentino Držaić & Madhumita Goala & Pankaj Kumar & Ivan Širić, 2022. "Sustainable Valorization of Four Types of Fruit Peel Waste for Biogas Recovery and Use of Digestate for Radish ( Raphanus sativus L. cv. Pusa Himani) Cultivation," Sustainability, MDPI, vol. 14(16), pages 1-14, August.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:16:p:10224-:d:890616
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    References listed on IDEAS

    as
    1. Kumar, Pankaj & Kumar, Vinod & Singh, Jogendra & Kumar, Piyush, 2021. "Electrokinetic assisted anaerobic digestion of spent mushroom substrate supplemented with sugar mill wastewater for enhanced biogas production," Renewable Energy, Elsevier, vol. 179(C), pages 418-426.
    2. Prajapati, Kalp Bhusan & Singh, Rajesh, 2020. "Enhancement of biogas production in bio-electrochemical digester from agricultural waste mixed with wastewater," Renewable Energy, Elsevier, vol. 146(C), pages 460-468.
    Full references (including those not matched with items on IDEAS)

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