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All Journal REKAYASA Jurnal Industri dan Inovasi (INVASI) Jurnal Equilibrium
Mutiara Fahmi
Universitas Satya Terra Bhinneka
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Physics Transportation

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Karakteristik Briket Hibrida dari Limbah Domestik dan Serbuk Kayu sebagai Sumber Energi Alternatif Terbarukan Hardiansyah Tambunan; Mutiara Fahmi
Rekayasa Vol 19, No 1: January - April 2026
Publisher : Universitas Trunodjoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v19i1.31911

Abstract

Limbah domestik dan serbuk kayu yang jumlahnya sangat melimpah berpotensi besar untuk dimanfaatkan sebagai bahan baku energi biomassa. Penelitian ini bertujuan untuk mengembangkan briket dengan menggabungkan bahan baku limbah domestik berupa sayur dan serbuk kayu yang disebut dengan briket hibrida (hybrid briquettes). Penelitian dilakukan melalui beberapa tahapan, yaitu persiapan, pembriketan, karakterisasi briket, dan analisis data. Selanjutnya, untuk mengevaluasi pengaruh rasio pencampuran dengan serbuk kayu dan ukuran partikel terhadap sifat-sifat briket hibrida dilakukan analisis statistik menggunakan Rancangan Acak Lengkap Faktorial/RALF. Hasil penelitian menunjukkan bahwa kadar air, kerapatan, kadar abu, dan nilai kalor briket hibrida sebagian besar telah memenuhi standar ISO 17225-7:2021 kelas B. Pencampuran bahan baku sayur dengan serbuk kayu dan perbedaan ukuran partikel bahan baku dapat meningkatkan sifat-sifat briket hibrida. Dari hasil analisis statistik, diketahui bahwa interaksi antara rasio pencampuran dengan serbuk kayu dan ukuran partikel berpengaruh nyata terhadap sifat fisis, mekanis, kimia, dan termal briket hibrida. Penggunaan limbah domestik dan serbuk kayu berkontribusi terhadap pengelolaan limbah yang optimal sebagai sumber energi alternatif pengganti energi dari bahan bakar fosil untuk keperluan pemanasan dan memasak di rumah tangga serta sebagai sumber bahan bakar industri.
Socio Economic Development Inequality and Its Impact on Poverty Levels in North Sumatra, 2019–2023: An Inter-District/City Study Mutiara Fahmi; Hardiansyah Tambunan
JURNAL EQUILIBRIUM Vol. 6 No. 1 (2026): VOLUME 6 NOMOR 1 TAHUN 2026
Publisher : Program Studi Ekonomi Pembangunan Universitas Flores

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/jeq.v6i1.7574

Abstract

This research analyses the effects of disparities in the socio-economic development of 33 districts and cities in the province of North Sumatra on the poverty rate from 2019 to 2023. Employing panel data analysis, the study combines important variables for the development of the province, including education infrastructure, life expectancy, access to electricity, GRDP per capita, and the Human Development Index (HDI). The disparity in inter-district differences in economic capacity is measured through the Coefficient of Variation (CV) and the Williamson Index (WI). The findings indicate the high inequality in economic capacity in the districts, as measured through the high CV and WI values. On the other hand, the panel regression results show that the poverty rate in North Sumatra is mainly influenced by the structural and long-run differences between the districts, measured by the incredibly high intraclass correlation (rho 0.99). The negative effects of life expectancy, access to electricity, and the Human Development Index on the poverty rate suggest that improvements in human development achievements and infrastructure are very important factors in overcoming poverty. Conversely, GRDP and the number of schools had only minor impacts, suggesting that economic growth and the development of educational infrastructure are not directly associated with poverty reduction unless they are accompanied by improvements in quality and inclusivity.
Food Loss and Waste In North Sumatra, Indonesia: Policy Recomendations Mutiara Fahmi
Jurnal Industri dan Inovasi (INVASI) Vol 2, No 2 (2024): September
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64670/invasi.v2i1.11499

Abstract

The issue of food loss and waste (FLW) In North Sumatra, Indonesia brings significant threats that ultimately affect social, economic, and environmental conditions. The inefficiencies in food production, distribution, and consumption worsen the region's food insecurity, financial losses, and environmental degradation. This study examines the primary reasons and effects of FLW in North Sumatra, including cultural habits, inadequate waste management systems, and infrastructural shortcomings. The paper offers actionable recommendations based on thoroughly evaluating national regulations, local initiatives, and international best practices. Suggestions include investing in advanced processing and storage technologies, enhancing food recovery systems, adopting circular economy principles, and promoting public awareness campaigns. By addressing these challenges through collaborative efforts among stakeholders and innovative policy strategies, North Sumatra can significantly reduce FLW, improve food security, and contribute to Indonesia's broader sustainability goals—especially its commitment to UN Sustainable Development Goal 12.3. This study underscores the importance of integrating social, environmental, and economic considerations into strategies for mitigating FLW to ensure long-term regional development.
Co-Authors Hardiansyah Tambunan