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All Journal Mechanical Engineering for Society and Industry Jurnal Teknik Terapan (J-TETA)
Lestari, Ellya Dwi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Pemanfaatan Limbah Kotoran sapi Menjadi Biogas Sebagai Sumber Energi Listrik di Dusun Tegalmulyo, Kecamatan Bungatan, Situbondo MUFID, MOH; Lestari, Ellya Dwi; Kurniawan, Nugroho Jerry; Nurul Nikmah; Ignas Oni Faentaono; Dafit Ari Prasetyo; Dety Oktavia Sulistiono; Azamataufiq Budiprasojo
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

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Abstract

Electricity is a basic need, but access to electricity in remote areas remains limited due to geographic and infrastructure constraints. Tegalmulyo Hamlet, dominated by cattle farming, has traditionally disposed of manure waste without optimal utilization, thereby polluting the environment. This community service activity aims to process cow dung waste into electrical energy through a community-based Biogas Power Plant (PLTBg). The approach used is Participatory Rural Appraisal (PRA), which actively involves the community in the planning, construction, and management of the system. A 1 m³ digester installation produces a potential biogas of 8.65 m³/day, with a theoretical electrical energy of approximately 96.6 kWh per day. In implementation, energy utilization is adjusted to the capacity of a 1 kW generator, thus meeting the electricity needs of 1,866 Wh per day for street lighting, livestock pens, and one resident's home. This program not only provides renewable energy but also reduces environmental pollution and produces organic fertilizer from biogas residue.
Innovative integration of solar energy and pyrolysis technology in fish smoking for improved liquid smoke yield and quality Rachmanita, Risse Entikaria; Hasbiyati, Haning; Firgiyanto, Refa; Wijaya, Mohamad Anggis Safii; Isrolana; Lestari, Ellya Dwi; Rudiyanto, Bayu
Mechanical Engineering for Society and Industry Vol. 6 No. 1 (2026): Issue in Progress
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.14931

Abstract

Traditional fish smoking still causes environmental pollution and health issues due to uncontrolled smoke emissions. Field data indicate that 54.0% of workers in fish smoking centers are exposed to heavy smoke, and 66.7% experience severe respiratory symptoms, underscoring the need for cleaner technologies. This study developed an integrated solar-powered fish smoking system combining pyrolysis and a naturally cooled spiral condenser to convert combustion smoke into liquid smoke as a natural preservative. The prototype was designed and tested using corn cob biomass as the pyrolysis feedstock. Evaluated parameters included solar panel efficiency, smoking chamber performance, and liquid smoke quality. Characterization covered specific gravity, pH, acetic acid, phenol content, and heavy metals (Pb, Cd). Results showed that pure corn cob liquid smoke had a specific gravity of 0.99965 g/cm³, pH 3.55, acetic acid 1.747%, and phenol 7.8859%, while smoke applied to fish yielded 1.008572 g/cm³, 3.70, 3.950%, and 12.4242%, respectively. Both Pb and Cd were not detected (< LOD), confirming safety from contamination. Although acetic acid and phenol contents correspond to SNI 8985:2021 grade 2, further purification is needed to meet food-grade standards. The system effectively produces functional, antimicrobial liquid smoke while reducing emissions, supporting sustainable fish smoking and the circular economy.
Co-Authors Azamataufiq Budiprasojo Bayu Rudiyanto Dafit Ari Prasetyo Dety Oktavia Sulistiono Hasbiyati, Haning Ignas Oni Faentaono Isrolana Kurniawan, Nugroho Jerry Mufid, Moh Nurul Nikmah Rachmanita, Risse Entikaria Refa Firgiyanto Wijaya, Mohamad Anggis Safii