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All Journal Jurnal Keteknikan Pertanian Jurnal Energi Baru dan Terbarukan
Junita Tarigan
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Agriculture, Biological Sciences & Forestry Electrical & Electronics Engineering Energy Engineering Environmental Science

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Statistical Analysis of Effect of pH Treatment on Biohydrogen Production from POME Waste Junita Tarigan; Armansyah Halomoan Tambunan; Radite Praeko Agus Setiawan; Obie Farobie; Furqon
Jurnal Keteknikan Pertanian Vol. 10 No. 3 (2022): Desember 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.3.319-327

Abstract

Palm Oil Mill Effluent (POME) has the potency to be converted to biohydrogen by dark fermentation. The statistical approach was used to determine the relationship between pH and biohydrogen production. This study aims to investigate the effect of pH on biohydrogen production with a statistical approach. Three substrates were treated with neutral pH and three without pH treatment. This experiment used the trapezoidal numerical integration method to get the total production of H2 produced per measurement time interval. There are nine substrate combinations tested. Three tests concluded that there was no difference in hydrogen production due to the pH treatment, and the sixth test concluded that there was a difference in hydrogen production due to the influence of pH. The tendency of every substrate to influence biohydrogen production without pH treatment and with pH treatment is a polynomial degree 3.
Kajian Awal Proses Konversi Limbah Plastik Menjadi Bahan Bakar Alternatif Menggunakan Alat Sederhana pada Skala Praktikum Tarigan, Junita; Raju, Raju
Jurnal Energi Baru dan Terbarukan Vol 7, No 1 (2026): Maret 2026
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2026.30917

Abstract

Plastic waste has become an increasingly serious environmental problem due to the high consumption of plastic materials and their resistance to natural degradation. On the other hand, plastics contain a high proportion of hydrocarbons, making them potentially suitable as alternative energy sources through thermal conversion processes. This study aims to explore the conversion of plastic bottle waste into liquid fuel using a simple apparatus at a practicum scale. An experimental approach was employed with descriptive observations focusing on process duration and heating temperature characteristics. The conversion system was designed using simple components, consisting of a metal can reactor, a plastic hose as a gas outlet, a cooling system utilizing ice as the cooling medium, and a container for collecting condensed products. Plastic waste was heated using a stove as the heat source, and reactor temperatures were recorded at 10-minute intervals until the conversion process ended. The results showed that the reactor temperature increased gradually and reached a maximum of 360.1 °C, which falls within the active pyrolysis temperature range. From an initial plastic mass of 300 g, 6 g of liquid fuel was produced with a yield of 2%, along with 82 g of solid residue. The relatively low liquid yield indicates limitations in heat distribution and condensation efficiency within the simple system. Combustion tests demonstrated that the produced liquid fuel was able to burn stably for 3 minutes and 17 seconds with an orange-reddish flame, indicating the presence of combustible hydrocarbon fractions. This study demonstrates that plastic waste conversion into liquid fuel can be directly observed using simple equipment at a practicum scale, supporting energy conversion learning and providing a basis for further research with improved system design.
Co-Authors Armansyah Halomoan Tambunan Furqon Obie Farobie Radite Praeko Agus Setiawan Raju