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All Journal Jurnal Ilmu Lingkungan Jurnal Ilmiah Teknologi dan Rekayasa Jurnal Usia Dini Jurnal Sains dan Teknologi Jurnal Teknologi Pendidikan JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Jurnal IPTEK Journal of Geoscience, Engineering, Environment, and Technology JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan PRODUCTUM : Jurnal Desain Produk (Pengetahuan dan Perancangan Produk) JMM (Jurnal Masyarakat Mandiri) Journal of Education and Instruction (JOEAI) International Journal of Community Service Learning Journal of Community Based Environmental Engineering and Management Journal of Tropical AgriFood Journal of Engineering and Scientific Research (JESR) Jurnal Sistem Teknik Industri Food ScienTech Journal Jurnal Riset Teknologi Pencegahan Pencemaran Industri Ruwa Jurai: Jurnal Kesehatan Lingkungan International Journal of Tourism and Hospitality in Asia Pasific Vokatek : Jurnal Pengabdian Masyarakat Journal Serambi Engineering (JSE) Bulletin of Engineering Science, Technology and Industry
Yosef Barita Sar Manik
Environmental Engineering Study Program, President University, Cikarang, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Hazard Identification, Risk Assessment and Control for Basic Electronics and Embedded System Design Lab (Case Study: Fablab President University, Indonesia) Yosef Barita Sar Manik; Rivasha Nirmala Viandar Putri; Melani Fera Ayulia; Monica Rumondang Panjaitan; Rosália Anastácia da Costa; Sanlio Gomes
Ruwa Jurai: Jurnal Kesehatan Lingkungan Vol. 20 No. 2 (2026)
Publisher : Poltekkes Kemenkes Tanjung Karang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26630/rj.v20i2.5605

Abstract

Basic Electronics and Embedded System laboratories are vital for technical education but pose understudied occupational hazards. This study systematically identifies, assesses, and controls risks in the Basic Electronics and Embedded System Design Laboratory at Fablab President University using direct observation, interviews, and documentation review. It identified 18 hazards across 8 activities, categorized into 6 types: electrical (most dominant, 7 occurrences), mechanical, fire/explosion, extreme temperature, noise/vibration, and natural hazards especially from energized circuits and high-voltage work. A 4×4 risk matrix revealed 5 High Risk and 2 Extreme Risk scenarios (max value 12 from short circuits), with incidental inspections proving inadequate. Applying the hierarchy of controls LOTO, insulated tools, RCDs, barriers, layout improvements, and training—reduced average risk from 9 to 4.29, eliminating all high/extreme levels. These findings validate proactive HIRAC for enhancing OHS, offering a replicable model for electronics labs.
Air Pollution Dispersion Analysis and Wind Resource Characterization in Coastal Bengkulu Using Meteorological Observation Data of 2021-2024 Manik, Yosef Barita Sar; Arifah Arsanti; Arjuna Nayaka; Azka Leona Mayriza; Amei, Ivander Adonis; Miftakhul Syafina; Hutahaean, Rolia Sesna
Journal of Geoscience, Engineering, Environment, and Technology Vol. 11 No. 3 (2026): JGEET Vol 11 No 03 : September (2026)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2026.11.3.22376

Abstract

Air pollution risk in coastal Bengkulu, influenced by monsoonal system-shifting wind patterns and increasing anthropogenic necessitates, requires wind pattern analysis at the areas of Muko-Muko, Pulau Baai, and Seluma, which are influenced by open land, airport activities, industrial emissions, and marine-terrestrial interactions, which require WRPlot for accurate dispersion simulation and eco-friendly spatial planning. The aim of this study is to examine the characteristics of the wind and prevailing directions of dispersion in three selected points that represents pollution-prone area at coastal regions of Bengkulu Province: Muko-Muko, Baai Island, and Seluma. The data analysis involved processing daily wind speed and direction hourly data obtained from NASA's POWER period of 2021 to 2024. Wind rose plots of directional frequencies and distributions of the wind classes were created using WRPlot 8.0.2. Results indicate predominant wind directions at all three selected points are 57% of the resultant vector during dry season and 68% of the resultant vector during wet season, with wind speeds ranging from 0.50 to 2.10 m/s, accounting for up to 88.4% of records. Calms varied from 3.1% to 10.8%, and wind speeds above 5.70 m/s were not recorded. These findings suggest that Bengkulu’s coastal wind regime is characterized by persistently light winds. Although such conditions limit the potential for large-scale wind energy utilization, they play a critical role in air pollution dispersion modelling and environmental risk assessment.
Gate-to-Gate Life Cycle Assessment of Small-Scale Yogurt Production in Bogor, Indonesia Yosef Barita Sar Manik; Vhirnawati Pasang; Fadil Hidaya
Journal of Community Based Environmental Engineering and Management Vol. 10 No. 2 (2026): September 2026 (In Progress)
Publisher : Department of Environmental Engineering - Universitas Pasundan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jcbeem.v10i2.49290

Abstract

This study presents a gate-to-gate Life Cycle Assessment (LCA) of small-scale yogurt production in Bogor, Indonesia, covering the production stage from raw material input to final packaged yogurt. The foreground system boundary excludes distribution, consumption, and end-of-life stages, while purchased raw materials (particularly raw milk) are represented using cradle-to-gate secondary datasets that inherently embed upstream agricultural burdens; this scope distinction is clarified explicitly in this revision. The assessment follows ISO 14040 and ISO 14044 standards and was conducted using openLCA software with the ReCiPe 2016 Midpoint (H) method, with a functional unit of 29.158 kg of packaged yogurt (one production batch). The Life Cycle Inventory (LCI) results show that the primary inputs include cow milk (27.184 kg), skimmed milk powder (2.000 kg), sugar (1.000 kg), microbial starter (0.030 kg), water (2.000 kg), and packaging materials (0.624 kg), with wastewater (2.150 kg) and organic residue (1.530 kg) as system outputs. The Life Cycle Impact Assessment (LCIA) results indicate that Global Warming Potential (GWP) is the most significant impact category, reaching 76.513 kg CO₂ eq per batch, equivalent to approximately 2.624 kg CO₂ eq per kg of packaged yogurt, followed by acidification (0.524 kg SO₂ eq), human toxicity (0.259 kg 1,4-DCB eq), freshwater eutrophication (0.131 kg P eq), and ozone depletion (5.51×10⁻⁴ kg CFC-11 eq). The hotspot analysis reveals that raw milk sourcing is the dominant contributor to environmental impacts across most categories, reflecting the influence of the cradle-to-gate background data embedded in the milk input. In conclusion, improving raw material sourcing, optimizing water and energy consumption, and enhancing waste management are essential strategies to improve the environmental performance of small-scale yogurt production systems.
LIFE CYCLE ASSESSMENT OF MBBR-BASED WASTEWATER TREATMENT PLANT (CASE STUDY: WWTP OF A SOAP AND COSMETIC INDUSTRY) Fadyah Rahmanina Susanti Patingari; Yosef Barita Sar Manik
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 4 (2026): December - ON PROGRESS
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.23029227

Abstract

Wastewater treatment plants (WWTPs) in the soap and cosmetics industry are often assessed primarily through effluent compliance,overlooking environmental burdens from electricity, chemical use, and sludge management. This study applies Life CycleAssessment (LCA), following ISO 14040/14044, to a full-scale Moving Bed Biofilm Reactor (MBBR)-based WWTP treating high-strength wastewater at a soap and cosmetics manufacturing facility in West Java, Indonesia. The gate-to-gate system was modeled using 36 months of operational data and ecoinvent v3.10 background data, with impacts assessed for 1,000 m³ of treated wastewater using ReCiPe 2016 Midpoint (H) in openLCA. The impact assessment showed a global warming potential of 216,928.1 kg CO₂ eq, fossil resource scarcity of 60,277.8 kg oil eq, terrestrial ecotoxicity of 511,267.9 kg 1,4-DCB, freshwater ecotoxicity of 4,730.3 kg 1,4-DCB, and human non-carcinogenic toxicity of 203,723.9 kg 1,4-DCB, The MBBR aeration blower, EQ tank pump, centrifuge decanter motor, and DAF transfer pump accounted for over 85% of electricity consumption. Terrestrial Ecotoxicity andHuman Non-Carcinogenic Toxicity were primarily associated with chemical production and sludge-borne contaminants, while Global Warming and Fossil Resource Scarcity were mainly linked to electricity consumption and fossil-based power generation. Overall, chemical use and electricity consumption were key contributors to the WWTP’s environmental footprint, highlighting chemical dosage optimization and energy efficiency as potential improvement strategies.
Co-Authors Agus, Fadilatur Rahmi Aisyah Bestari Siswohartono Alexandra Paloma Sarmento Alya Syafiqa Z Amaral, Joaozinho Jubileu San Sao Amei, Ivander Adonis Anthony Halog Arifah Arsanti Arifah Arsanti Arjuna Nayaka Aulia Rizqi Aufa Rafiqi Azka Leona Mayriza Azwar, Arrizal Benedikta Anna Haulian Siboro Bintang Rachel Aprilia Marpaung Brilian Maulani Putri Brilian Maulani Putri Chandra Aden Akbar Pamungkas Christine Nababan Daffa Renaldhi Chaniago Mairuhu Daniel Simanjuntak Diharjo, Deniela Flora Mariyne Wongso Dinda Fairuz Nadhifah Diogo Anibal El Isma Naomi Thorndike Sihombing Elisabeth Pardede Ellen Siagian Elserida Nababan Elvhan Chatisla Cosaken Fadil Hidaya Fadyah Rahmanina Susanti Patingari Farhan Saefurrahman Fitri Butarbutar Gabryella Lovia Sihombing Haidar, Muhammad Labib Halog, Anthony Huri, Khalila Kireina Hutahaean, Rolia Sesna Hutauruk, Joshua Partogi Ignatius David Fernando Indri Purba Inna Stephanie Jauza Dzihni Alifa Jayawarsa, A.A. Ketut Jesica Pratiwi Simanjuntak Johanes Surya Utama Sede Jovian Nathan Sutedja Julianti, Metiovani Karlina Gultom Keisha Fawwaaz Keisha Fawwaaz Kimberly, Jaqueline Andrea Laura Angeline Hutahean Lubis, Windy Lumbangaol, Anita Febriany Manurung, Gracia Natalie Emmanuela Marpaung, Bintang Rachel Aprilia Maulidinnisa, Vira Puspita Mayriza, Azka Leona Melani Fera Ayulia Melisa Aprina Miftakhul Syafina Monalisa Martha Siahaan Monica Rumondang Panjaitan Nababan, Christine Nababan, Elserida Natalia Paramitha Natasya Pangaribuan Nati Nati Ni Made Amanda Putri Paramerta Pangaribuan, Natasya Panjaitan, Santi Paramitha, Natalia Putri, Brilian Maulani Putri, Nurul Ayanda Radia, Sabrina Alia Rahayu, Oky Rahayu, Wanti Rivasha Nirmala Viandar Putri Rosália Anastácia da Costa Rut Tambun Salsana, Bella Sanlio Gomes Santi Agustina Manalu Saraswati Sintia Widi Siagian, Ellen Siboro, Benedikta AH Sikstin Sihombing Simanjuntak, Donda Natalia R. Simanjuntak, Indah Debora Salmanita Simanjuntak, Jesica Pratiwi Simbolon, Vismeike Septauli Simorangkir , Desi Sinaga, Hotma Sintong Joshua Siahaan Sitorus, Felix Arnes Situmorang, Eva Daoni Veronika Sri Hanna Siahaan Susi Limbong Tambunan, Yohana Tampubolon, Grace Manzoya Tiara, Karen Vhirnawati Pasang Vismeike Septauli Simbolon Windy Lubis Yohana Tambunan