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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Best Journal (Biology Education, Sains and Technology) Factory Jurnal Industri, Manajemen dan Rekayasa Sistem Industri IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Agro Fabrica IRA Jurnal Pengabdian Kepada Masyarakat
Winardi, Rafael Remit
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Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Education Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Other

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Penerapan Aquaponik dengan Hidroponik DFT untuk Budidaya Kangkung di Desa Dolok Sagala Mahyunis, Mahyunis; Gunawan, Hari; Raja, Pada Mulia; Winardi, Rafael Remit; Zakwan, Zakwan; Yazid, Abu; Hasibuan, Henry Budi
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i1.187

Abstract

This Community Service Program aims to implement an aquaponics system with DFT hydroponics in water spinach cultivation in Dolok Sagala Village, Dolok Masihul Subdistrict, Serdang Bedagai Regency. The aquaponics system combines fish farming with plant cultivation, where fish wastewater is used as a plant nutrient source. In contrast, the DFT hydroponics system allows efficient nutrient circulation. The application of this technology aims to increase agricultural productivity in limited land areas, provide sustainable farming solutions, and enhance local food security. The results of this activity show that the aquaponics and DFT hydroponic systems can significantly improve the growth of water spinach with minimal use of land and resources. Community participation in this activity also increased, reinforcing awareness of the importance of modern agricultural technology.
Karakteristik Kompos Hasil Fermentasi Campuran Tandan Kosong Kelapa Sawit (TKS) dan Limbah Cair PKS (LCPKS) Winardi, Rafael Remit; Prasetyo, Healthy Aldriany
BEST Journal (Biology Education, Sains and Technology) Vol 6, No 2 (2023): September 2023
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v6i2.7526

Abstract

Tujuan dari penelitian ini adalah : 1). Mengetahui perbandingan campuran tandan kosong kelapa sawit (TKS): Limbah Cair PKS (LCPKS) dan EM4 yang tepat dan dapat mempercepat dekomposisi TKS dalam pembuatan kompos, 2). Mengetahui kandungan N,P,K, dan C/N yang dihasilkan dari selama fermentasi pada pembuatan kompos. Penelitian dilaksanakan dengan RAL non factorial dengan factor tunggal campuran TKS: LCPKS dan EM4.Setiap kombinasi perlakuan diulang sebanyak 3 kali. Data diolah dengan menggunakan statistik dengan uji Analysis of variance (ANOVA) dengan uji lanjut DMRT pada taraf 5%. Hasil penelitian ini menunjukkan bahwa kadar Nitrogen (N), Fosfor (P), Kalium (K), rasio C/N dan kadar air berpengaruh tidak nyata dan belum sesuai dengan SNI Perlakuan yang terbaik terdapat pada C3.
The Use of Gamal Leaves (Gliricidia sepium) to Accelerate Fresh Fruit Bunch Detachment and Improve the Quality of Crude Palm Oil Giyanto, Giyanto; Rangkuti, Ika Ucha Pradifta; Raja, Pada Mulia; Winardi, Rafael Remit; Mahyunis, Mahyunis; Ashari, Reza; Elisabeth, Jenny
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1432-1441

Abstract

Acceleration of processing for fresh fruit bunches (FFB) is crucial to increase profitability and business opportunities for oil palm farmers. This research aims to evaluate the effect of using gamal (Gliricidia sepium) leaves and the duration of ripening on the percentage of FFB processing as well as the quality of crude palm oil. This study employed a factorial completely randomized design (CRD). The data were analyzed using ANOVA with Duncan’s Multiple Range Test at a significance level of 5%. The results of the analysis showed that the best treatment was S3T2 (40% gamal leaves, 20 h of ripening) with a natural processing percentage of 45.87% of the FFB weight and 60.34% of the total bunch weight. The use of gamal leaves and the duration of ripening significantly affected the quality parameters of the oil, especially the free fatty acid content. Treatment S1T1 (20% gamal leaves, 10 h of ripening) showed the best results with a free fatty acid value of 1.30%, meeting the quality standard (<5%). However, the moisture content still exceeded the quality standard (<0.5%), although treatment S3T2 yielded the best result at 0.63%. While, the impurity content quality met the quality standard (<0.5%), with the best value achieved by treatment S1T1 at 0.15%. Keywords: Bunch detachment, CPO quality, Ethylene, Gliricidia sepium, Ripening.
Kebutuhan Energi Mekanik Mesin Perontok Sawit Dengan Motor Listrik Tiga Fasa Melalui Transmisi Sabuk-V Di Pabrik Kelapa Sawit Kusuma, Nanda; Faisal, Busrizal; Winardi, Rafael Remit
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.286

Abstract

A thresher is a crucial unit in a palm oil mill that separates loose fruit from fresh fruit bunches (FFB). Its performance is significantly influenced by the availability of mechanical energy transmitted from a three-phase electric motor through a V-belt system. This study aims to analyze the mechanical energy requirements of a thresher under varying FFB loads and electrical parameters. The research method employed field observation, current and voltage measurements, and energy consumption calculations. The results indicate that the greater the FFB load processed, the higher the motor's electrical current requirements. The maximum current was 49.84 A at 380 V, with a motor power of 20 kW. The highest load the machine can handle is 3,324 kg, with a kinetic energy requirement of 72,000 kJ. Analysis of the current-load relationship shows a linear pattern, confirming a direct relationship between increasing mechanical capacity and electrical energy consumption. These findings emphasize that matching electrical power to mechanical load capacity is crucial to prevent energy inefficiency and machine damage from overload. This research contributes to efforts to optimize energy consumption in palm oil mills by regulating input load, maintaining the V-belt transmission system, and implementing more efficient motor control technology.
Analisa Kualitas Limbah Cair Pabrik Kelapa Sawit (LCPKS) Dengan Perlakuan Bioadsorben Pelepah Kelapa Sawit Teraktivasi Asam Sulfat (H2SO4) Winardi, Rafael Remit; Prasetyo, Healthy Aldriany
BEST Journal (Biology Education, Sains and Technology) Vol 9, No 1 (2026): Juni 2026
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v9i1.13094

Abstract

Penelitian ini dilakukan untuk mengetahui variasi konsentrasi aktivator H2SO4 terbaik untuk mengaktivasi bioadsorben pelepah kelapa sawit dengan konsentrasi aktivator 20%, 25% dan 30%. Bioadsorben diaplikasikan terhadap limbah cair pabrik kelapa sawit di draft akhir kolam limbah. Metode penelitian yang digunakan adalah RAL (rancangan acak lengkap) non faktorial dengan 4 taraf perlakuan. Hasil penelitian menunjukkan bahwa bentuk dan morfologi yang diuji dengan SEM untuk aktivator H2SO4 30% terbentuk pori-pori lebih banyak dan lebih besar serta merata dibandingkan dengan bioadsorben yang tidak diaktivasi. Variasi kosentrasi terbaik untuk aktivasi bioadsorben adalah konsentrasi 30% dengan rata-rata nilai COD limbah 11.735 mg/L dan pH rata-rata 5,9.
Co-Authors Abu Yazid, Abu Ashari, Reza Busrizal Faisal Fachrizal Fazli, Hafiz Darma Hari Gunawan Hasibuan, Henry Budi Ika Ucha Pradifta Rangkuti Jenny Elisabeth kusuma, nanda Mahyunis Mubarokah, Siti Pada Mulia Raja Rahimah Zakwan, Zakwan