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Advantages and Challenges of Composting Reactors for Household Use: Smart Reactor Concept

Author

Listed:
  • Alise Anna Stipniece

    (Water Research and Environmental Biotechnology Laboratory, Water Systems and Biotechnology Institute, Faculty of Civil Engineering, Riga Technical University, Kipsalas 6A, LV-1048 Riga, Latvia)

  • Vlads Vladinovskis

    (Faculty of Electrical Engineering and Environmental Engineering, Riga Technical University, Kipsalas 6A, LV-1048 Riga, Latvia)

  • Pauls Daugulis

    (Water Research and Environmental Biotechnology Laboratory, Water Systems and Biotechnology Institute, Faculty of Civil Engineering, Riga Technical University, Kipsalas 6A, LV-1048 Riga, Latvia)

  • Marta Zemite

    (Water Research and Environmental Biotechnology Laboratory, Water Systems and Biotechnology Institute, Faculty of Civil Engineering, Riga Technical University, Kipsalas 6A, LV-1048 Riga, Latvia)

  • Laura Vitola

    (Institute of Materials and Products, Faculty of Civil Engineering, Riga Technical University, Kipsalas 6A, LV-1048 Riga, Latvia)

  • Linda Mezule

    (Water Research and Environmental Biotechnology Laboratory, Water Systems and Biotechnology Institute, Faculty of Civil Engineering, Riga Technical University, Kipsalas 6A, LV-1048 Riga, Latvia)

Abstract

In the European Union, 88 Mt of food waste is generated annually, accounting for 6% of total EU greenhouse gas emissions. To reduce the amount of bio-waste going into the landfills, the composting of bio-waste at a household level must be facilitated. Traditional composting devices for garden and household biological waste solely rely on natural processes and do not hold online process control features or require energy input. This study describes a design and construction of a smart composting reactor for improved composting process control and compares the developed system with other laboratory-scale reactors and commercial devices available for this purpose. The Alternative Hierarchy Process (AHP) method and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) multi-criteria analysis method were used to assess the importance of various parameters and devices. The results showed good thermal insulation by reducing thermal transmittance from 1.87 W/m²K to 1.27 W/m²K, the effective sensor system performance of the constructed system, providing continuous data logging of temperature, moisture, and gas concentration levels. The system demonstrated 58% proximity to the ideal solution.

Suggested Citation

  • Alise Anna Stipniece & Vlads Vladinovskis & Pauls Daugulis & Marta Zemite & Laura Vitola & Linda Mezule, 2022. "Advantages and Challenges of Composting Reactors for Household Use: Smart Reactor Concept," Sustainability, MDPI, vol. 14(16), pages 1-19, August.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:16:p:10030-:d:887300
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    Cited by:

    1. Wang, Ming & Li, Yunting & Peng, Hao & Wang, Jianlin & Li, Qichen & Li, Pengfei & Fan, Jinxia & Liu, Shuang & Zheng, Guoxiang, 2023. "Review: Biotic and abiotic approaches to artificial humic acids production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 187(C).

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