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All Journal Journal of Innovation and Applied Technology Jurnal Sumberdaya Alam dan Lingkungan Jurnal Keteknikan Pertanian Tropis dan Biosistem Plantropica: Journal of Agricultural Science Industria: Jurnal Teknologi dan Manajemen Agroindustri
Yasa Palaguna Umar, Yasa Palaguna
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Other

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Ambient PM2.5 Transport in Bandar Lampung City: HYSPLIT Model and Meteorological Profile Mustaqiman, Aulia Nur; Umar, Yasa Palaguna; Gustinasari, Kiki; Irawandani, Tia Dwi; Prayogo, Wisnu
Jurnal Sumberdaya Alam dan Lingkungan Vol 11, No 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACT Particulate Matter (PM2.5) is a hazardous air pollutant commonly found in urban areas, where emissions from transportation, industry, and fuel combustion significantly contribute to its concentration, posing serious risks to human health, air quality, and ecosystems. With rapid urbanization (1,073,451 people), transportation activities, and industrial growth, Bandar Lampung faces high PM2.5 concentrations from January to December 2023, up to 10.6 times the WHO threshold limit. This study analyzes the influence of daily meteorological conditions, such as wind speed, humidity, and temperature inversion, on the accumulation of PM2.5 pollutants in Bandar Lampung in 2023, focusing on August as the period with the highest pollution index (ISPU 155). This study utilizes the HYSPLIT application, which analyzes the sources and transport of PM2.5 pollutants based on wind direction. The HYSPLIT model results indicated that pollutants originate from the southeast at an altitude of 500 m and exhibit a more complex pattern at higher altitudes. Low wind speed (2.6 m/s) and low humidity (69%) during the month influenced the accumulation of PM2.5, reaching 53.6 µg/m³, exceeding the national threshold by 10.6 times. This study provided spatial information to support PM2.5 pollution mitigation efforts in Bandar Lampung by using the HYSPLIT model.  Keywords: Bandar Lampung, HYSPLIT, meteorology, PM2.5, wind speed
Analisis Penggunaan Lahan Pada Tingkat Rawan Bencana Erosi Berbasis di Taman Nasional Gunung Rinjani Nusa Tenggara Barat Umar, Yasa Palaguna; Lestari, Tri Fitria Indah; Anugroho, Fajri
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 12 No. 3 (2024): December 2024
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Berdasarkan studi literatur yang dilakukan, tanah yang berada di kawasan Taman Nasional Gunung Rinjani (TNGR) memiliki bahan induk penyusun berupa pasir volkan dan abu. Hal tersebut menyebabkan potensi terjadinya erosi di kawasan TNGR akan meningkat, terutama pada saat musim hujan berlangsung. Hal ini dikarenakan energi kinetik dari air hujan akan memecah agregat tanah dan menyebabkan terjadinya erosi dengan faktor pendukung berupa kemiringan dan vegetasi. Oleh karena itu penelitian kali ini bertujuan untuk menghitung prediksi laju erosi di kawasan TNGR pada tahun 2024 berbasis metode spasial berdasarkan data 10 tahun terakhir dan memberikan rekomendasi konservasi pada jenis potensi erosi. Metode perhitungan yang digunakan adalah Universal Soil Lost Equation (USLE) dengan menggunakan pendekatan spasial berupa overlay data dari setiap faktor yang digunakan meliputi erosivitas hujan (R), erodibilitas tanah (K), panjang dan kemiringan lereng (LS) serta faktor vegetasi dan pengelolaan lahan (CP). Adapun potensi erosi tersebut diklasifikasikan menjadi beberapa kelas yaitu kelas sangat ringan dengan rentang 0-15 ton/ha/tahun yang mencakup 52% dari area TNGR, kelas ringan dengan rentang 15-60 ton/ha/tahun yang mencakup 13%, kelas sedang dengan rentang 60-180 ton/ha/tahun yang mencakup 18% dari area TNGR, kelas berat dengan rentang 180-480 ton/ha/tahun yang mencakup 12% dari area TNGR dan kelas sangat berat dengan rentang >480 ton/ha/tahun yang mencakup 5% dari area TNGR. Dari hasil pemetaan potensi erosi diberikan beberapa rekomendasi upaya konservasi untuk mengendalikan dan meminimalisir laju erosi di TNGR dengan menggunakan metode kombinasi (mekanik-vegetatif) berupa matras kawat dan tanaman Heteropogon contortus serta dengan menggunakan metode vegetatif.
Optimization of a Dual-Stage Filtration Unit Using Cation Resin, Zeolite, and Activated Carbon for Limewater Treatment in Mulyosari Hamlet, Malang Regency Fauzi, Rachmad Pratama; Sulianto, Akhmad Adi; Umar, Yasa Palaguna
Jurnal Sumberdaya Alam dan Lingkungan Vol 12, No 1 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2025.012.01.2

Abstract

ABSTRACT Access to potable water remains a critical challenge in rural limestone regions such as Mulyosari Hamlet, Malang Regency, where groundwater is often contaminated by high levels of calcium carbonate, total dissolved solids, and alkalinity. This study aimed to evaluate the effectiveness of a simple water filtration system utilizing locally available media to reduce these contaminants and achieve compliance with national drinking water standards. The filtration unit consisted of two cylinders filled with cation exchange resin, silica sand, activated carbon, and natural zeolite, and was tested over a four-month dry season period. Groundwater samples were collected before and after treatment for chemical and hydraulic analysis. Results showed significant reductions in total dissolved solids from 396 to 182 mg.L-1 (54%), calcium carbonate from 424 to 228 mg.L-1 (46%), and alkalinity from 298 to 48 mg.L-1 (84%). Boiling the filtered water further improved water quality. The system maintained a steady discharge rate of 1.4 m³.h-1 and hydraulic retention times between 13.1 and 26.2 seconds, with minimal head loss. These findings confirm that the simple filtration system is both technically feasible and economically viable for household application, offering substantial benefits for water quality improvement and public health in rural limestone-affected communities. Keywords:  lime water, mulyosari hamlet, environmental health, simple water filtration, drinkable water 
Analisis Dinamika Vegetasi Tumbuhan Bawah (Understorey) di Tegakan Agroforestri dan Monokultur Jati (Tectona grandis) Akibat Perubahan Musim Setiawan, Adi; Kholifah, Izzah Nurul; Ramadhana, Varotama Putra; Aini, Nurul; Umar, Yasa Palaguna
Plantropica: Journal of Agricultural Science Vol. 9 No. 1 (2024)
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpt.2024.009.1.1

Abstract

ABSTRAKPola tanam dan perbedaan musim memberikan pengaruh pada keanekaragaman dinamika dan komposisi spesies tumbuhan bawah pada tanaman jati (Tectona grandis) yang merupakan tanaman deciduous. Penelitian ini bertujuan untuk mengetahui keragaman spesies, dinamika dan komposisi vegetasi tumbuhan bawah yang ada pada pola tanam agroforestri (AF) dan monoculture (MN) jati pada musim hujan (RS) dan musim kemarau (DS). Survei lapang telah dilaksanakan pada bulan Februari-Maret dan Juli-Agustus 2023 di kawasan hutan produksi jati Perum Perhutani Kecamatan Kalipare, Kabupaten Malang, Jawa Timur. Kami menggunakan frame ukuran 1 x 1 m dan meletakkannya secara sistematis. Total 117 petak diamati yang terbagi menjadi 27 petak untuk AF dan 90 petak untuk MN. Jarak antar Plot adalah 5 m yang di tandai posisinya dengan Global Positioning System (GPS) dan label penanda. Pada tiap plot dilakukan pengamatan dan di catat jenis spesies, persentase tutupan vegetasi serasah dan tanah terbuka serta menghitung Nilai Kesamaan Sorensen (IS). Adapun pengamatan faktor lingkungan meliputi faktor naungan (keterbukaan kanopi) dan air (curah hujan). Kami gunakan kamera hemisperical lens (Samsung gear 360°) yang diambil 1 m di atas titik petak kemudian dianalisis menggunakan GLA 2.0 untuk memperoleh keterbukaan canopy. Faktor curah hujan di peroleh dari data Stasiun klimatologi setempat. Hasil penelitian menunjukkan terdapat perbedaan spesies tumbuhan bawah di AF dan MN jati. Komposisi tumbuhan bawah MN meliputi 49 spesies dari 23 famili sedangkan di AF terdapat 35 spesies dari 16 famili. Vegetasi pada AF dan MN jati memiliki komposisi dan struktur yang berbeda. MN jati pada MK memiliki keragaman yang lebih tinggi dibanding pola tanaman AF karena AF di wilayah tersebut lebih mirip monokultur tanaman semusim yang intensif. Faktor keterbukaan kanopi dan curah hujan memiliki pengaruh signifikan terhadap tutupan vegetasi
Integrating Education, Technology, and Local Institutions for Community-Based Waste Management: A Sustainable Development Approach in Bulusan Village, Banyuwangi UMAR, YASA PALAGUNA; Susilo, Bambang; Setiawan, Adi
Journal of Innovation and Applied Technology Vol 12, No 1 (2026)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2025.012.01.01

Abstract

This study presents an integrated community-based waste management program in Bulusan Village, Banyuwangi, aligned with Sustainable Development Goals 11, 12, and 13. Using participatory action methods, the program combined environmental education, an organic waste shredder, biopores, compost bags, and a community waste bank. Results showed a 74.2% average increase in waste literacy, a 30% reduction in household waste, and enhanced community engagement and governance. The findings demonstrate that integrating education, technology, and local institutions effectively transforms household waste management and provides a replicable model for sustainable, circular communities in post-landfill settings.
Gate-to-Gate Life Cycle Assessment of Sugar Production: Environmental Hotspots and Modeled Improvement Scenarios for Bagasse-Fired Boilers Umar, Yasa Palaguna; Elfandi, Vilonia Jasmine
Industria: Jurnal Teknologi dan Manajemen Agroindustri Vol 15, No 1 (2026)
Publisher : Department of Agro-industrial Technology, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.industria.2026.015.01.6

Abstract

AbstractSugar production requires both thermal and electrical energy. These activities also generate emissions from bagasse combustion, grid electricity, and process inputs. This study assesses the potential environmental impacts of gate-to-gate sugar production, identifies process hotspots, and evaluates two boiler improvement scenarios at PG X in East Java, Indonesia. The assessment employs a process-based Life Cycle Assessment using operational data from the 192-day 2025 milling season, a functional unit of 1 kg of ready-to-sell Superior High-Grade Sugar (SHS), and a reference flow of 29,768,100 kg of SHS. Modeling was conducted using SimaPro 10.1.0.2, Ecoinvent 3.8, and the CML-IA Baseline midpoint method to evaluate global warming, acidification, eutrophication, photochemical oxidation, and human toxicity. The baseline results per kg of SHS were 5.845 kg CO₂-eq, 0.00857 kg SO₂-eq, 0.00578 kg PO₄³⁻-eq, 0.000380 kg C₂H₄-eq, and 0.615 kg 1,4-DCB-eq. The boiler emerged as the primary modeled hotspot, linking bagasse combustion, steam generation, internal electricity production, combustion emissions, and ash generation. Scenario 1 showed a modeled Global Warming Potential (GWP) reduction of 8.05%, although human toxicity increased by 0.55%. Scenario 2 yielded greater modeled reduction potentials for photochemical oxidation (13.10%) and acidification (9.02%), while GWP remained unchanged. These differing responses indicate that to avoid overlooking burden shifting, boiler improvements must be evaluated across multiple impact categories. The scenario results represent the modeled improvement potentials rather than the field-validated retrofit performance.Keywords: bagasse combustion, boiler emissions, gate-to-gate, Life Cycle Assessment, sugar production Abstrak Produksi gula membutuhkan energi termal dan listrik. Kegiatan tersebut juga menghasilkan emisi dari pembakaran bagasse, listrik jaringan, dan input proses. Penelitian ini menilai potensi dampak lingkungan produksi gula gate-to-gate, mengidentifikasi hotspot proses, dan mengevaluasi dua skenario perbaikan boiler di PG X Jawa Timur, Indonesia. Penilaian menggunakan process-based Life Cycle Assessment dengan data operasi masa giling 2025 selama 192 hari, functional unit 1 kg SHS siap jual, dan reference flow 29.768.100 kg SHS. Pemodelan memakai SimaPro 10.1.0.2, Ecoinvent 3.8, dan CML-IA Baseline midpoint untuk global warming, acidification, eutrophication, photochemical oxidation, dan human toxicity. Hasil baseline per kg SHS adalah 5,845 kg CO₂-eq, 0,00857 kg SO₂-eq, 0,00578 kg PO₄³⁻-eq, 0,000380 kg C₂H₄-eq, dan 0,615 kg 1,4-DCB-eq. Boiler menjadi main modeled hotspot karena menghubungkan pembakaran bagasse, steam, listrik internal, emisi pembakaran, dan abu. Skenario 1 menunjukkan modeled Global Warming Potential (GWP) reduction sebesar 8,05%, tetapi human toxicity meningkat 0,55%. Skenario 2 menghasilkan modeled reduction potential lebih besar pada photochemical oxidation dan acidification, masing-masing 13,10% dan 9,02%, sedangkan GWP tidak berubah. Perbedaan respons menunjukkan bahwa perbaikan boiler perlu dinilai secara multikategori agar burden shifting tidak terabaikan Hasil skenario merupakan modeled improvement potentials, bukan field-validated retrofit performance.Kata kunci: emisi boiler, gate-to-gate, Life Cycle Assessment, pembakaran bagasse, produksi gula
Co-Authors Aini Nurul Akhmad Adi Sulianto, Akhmad Adi Bambang Susilo Elfandi, Vilonia Jasmine Fachry Abda El Rahman Fajri Anugroho, Fajri Fauzi, Rachmad Pratama Gustinasari, Kiki Kholifah, Izzah Nurul Lestari, Tri Fitria Indah Mustaqiman, Aulia Nur Prayogo, Wisnu Ramadhana, Varotama Putra Tia Dwi Irawandani