International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

  • Journals
  • Submission
  • Events
  • About us
  • Contact

Keyword: green waste

  • MACHINES

    Green waste composter with energy cogeneration – energy storage and utilization

    • Rosen Ivanov
    Machines. Technologies. Materials., Vol. 19 (2025), Issue 10, pg(s) 362-365
    • Abstract
    • View Article
    •  Article PDF

    Microbial fuel cells (MFCs) have significant potential for sustainable energy production and waste management, but despite this, they are still not widely commercialized due to several main reasons, such as relatively low power generation, technical challenges, scalability, and others. In the present study, we tested the possibilities for storage and utilization of energy from our developed green waste composter with cogeneration of energy. The composter consists of 24 stacked solid phase microbial fuel cells. The generated energy was increased through a voltage boost converter and used for charging batteries, power banks, and low-energy consumption devices. The composter demonstrated stable operation, and the obtained results regarding the storage and utilization of the energy generated by it are promising for its commercialization.

  • DOMINANT TECHNOLOGIES IN “INDUSTRY 4.0”

    Design and study of the operation of a green waste composter with energy cogeneration

    • Rosen Ivanov
    Industry 4.0, Vol. 10 (2025), Issue 4, pg(s) 132-135
    • Abstract
    • View Article
    •  Article PDF

    Nowadays, renewable bioenergy is considered as one of the ways to provide energy at the expense of fossil fuels. The possibility of obtaining energy from organic materials through bio-electrochemical systems attracts considerable interest. Green waste is organic plantbased materials generated from grass clippings, broken branches, fallen trees and others, the utilization of which is currently not very effective. In the present study, we constructed a composter based on bio-electrochemical systems for the utilization of green waste with cogeneration of energy. The composter showed good performance in terms of both the decomposition of organics and the generated energy.

Congresses and conferences

  • International Scientific Conference
    "ARTIFICIAL INTELLIGENCE"
    07.03-10.10.2026 - Borovets, Bulgaria
  • IX International Scientific Conference
    "High Technologies. Business. Society"
    09.-12.03.2026 - Borovets, Bulgaria
  • XXIII International Congress
    "Machinеs. Technolоgies. Materials."
    Winter session
    11.-14.03.2026 - Borovets, Bulgaria
  • XXXI International Scientific Technical Conference
    "Foundry"
    22.-24.04.2026 - Pleven, Bulgaria
  • XXXIV International Scientific Conference
    "trans&MOTAUTO"
    22.-25.06.2026 - Varna, Bulgaria
  • XII International Scientific Congress
    "Innovations"
    22.-25.06.2026 - Varna, Bulgaria
  • XI International Scientific Conference
    "Industry 4.0"
    Summer session
    24.-27.06.2026 - Varna, Bulgaria
  • XV International Scientific Congress
    "Agricultural Machinery"
    24.-27.06.2026 - Varna, Bulgaria
  • XIV International Scientific Conference
    "Engineering. Technologies. Education. Safety"
    31.08-03.09.2026 - Varna, Bulgaria
  • X International Scientific Conference
    "Materials Science. Non-Equilibrium Phase Transformations"
    31.08-03.09.2026 - Varna, Bulgaria
  • XXIII International Congress
    "Machines. Technologies. Materials"
    Summer session
    02.-05.09.2026 - Varna, Bulgaria
  • X International Scientific Conference
    "POWER TRANSMISSIONS"
    02.-05.09.2026 - Varna, Bulgaria
  • XIX International Conference for Young Researchers
    "Technical Sciences. Industrial Management"
    11.-14.09.2026 - Varna, Bulgaria
  • XI International Scientific Conference
    "Conserving Soils and Water"
    07.-10.12.2026 - Borovets, Bulgaria
  • X International Scientific Conference on Security
    "Confsec"
    07.-10.12.2026 - Borovets, Bulgaria
  • XI International Scientific Conference
    "Industry 4.0"
    Winter session
    09.-12.12.2026 - Borovets, Bulgaria
  • V International Scientific Conference
    "Mathematical Modeling"
    09.-12.12.2026 - Borovets, Bulgaria

Scientific Technical Union of Mechanical Engineering "Industry-4.0"

108, Rakovski Str., 1000 Sofia, Bulgaria
tel. (+359 2) 987 72 90, tel./fax (+359 2) 986 22 40,
office@stumejournals.com