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All Journal AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Logic : Jurnal Rancang Bangun Dan Teknologi Nata Palemahan: Journal of Environmental Engineering Innovations
I Made Panji Tirta Prakasa
Universitas Pendidikan Nasional
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Emisi dan Dispersi Polutan Udara pada Tahap Konstruksi Pembangunan Hotel di Pecatu, Kabupaten Badung Sang Kompiang Rizki Putra Atmaja; I Wayan Gde Sutasoma; I Made Panji Tirta Prakasa; Made Ari Riska Dayanti
Nata Palemahan: Journal of Environmental Engineering Innovations Vol. 3 No. 1 (2026)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/natapalemahan.v3i1.7833

Abstract

Kegiatan konstruksi hotel berpotensi menurunkan kualitas udara ambien melalui emisi pembakaran bahan bakar diesel dan debu fugitif yang dihasilkan oleh pergerakan kendaraan serta aktivitas mekanis. Penelitian ini bertujuan menganalisis laju emisi, pola dispersi, dan perubahan kualitas udara akibat tiga kelompok kegiatan konstruksi, yaitu mobilisasi peralatan dan material, penyiapan lahan dan penggalian pondasi, serta pembangunan bangunan utama dan fasilitas pendukung di Pecatu, Kabupaten Badung. Penelitian menggunakan data sekunder dari dokumen analisis dampak lingkungan yang diolah secara kuantitatif untuk parameter SO2, NO2, CO, TSP, PM10, dan PM2.5. Laju emisi dihitung menggunakan pendekatan faktor emisi, emisi debu fugitif dihitung dengan metode AP-42, sedangkan konsentrasi tambahan diprakirakan melalui model dispersi sumber garis. Hasil penelitian menunjukkan bahwa rona awal kualitas udara pada tiga titik pengamatan tergolong baik. Mobilisasi menjadi sumber dominan dengan kontribusi relatif sebesar 97,1-99,9% terhadap konsentrasi tambahan pada jarak evaluasi. Skenario ini menyebabkan konsentrasi NO2 dan TSP melampaui baku mutu, dengan nilai ISPU NO2 sebesar 154,47 yang termasuk kategori tidak sehat. Sementara itu, penyiapan lahan dan pembangunan bangunan tidak mengubah kategori kualitas udara dari kondisi baik. Oleh karena itu, pengendalian emisi kendaraan, resuspensi debu jalan, dan pemantauan kualitas udara di sekitar jalur mobilisasi perlu menjadi prioritas selama tahap konstruksi.
Performance Evaluation of Banana Fiber as a Natural Adsorbent for Methane Enhancement in Biogas Using GC–MS Analysis I Wayan Sutama; I Nyoman Suprapta Winaya; Ida Bagus Alit Swarmardika; Rukmi Sari Hartati; I Made Panji Tirta Prakasa
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 26 No. 2 (2026): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v26i2.148-156

Abstract

Biogas utilization from agricultural waste in Indonesia remains underdeveloped despite its significant potential as a renewable energy source. Biogas produced through anaerobic digestion contains a high concentration of carbon dioxide (CO₂), which lowers its calorific value and limits its direct use as a clean fuel. Therefore, biogas upgrading is necessary to increase methane (CH₄) concentration and improve fuel quality. This study evaluates the performance of banana fiber as a natural adsorbent for methane enhancement and carbon dioxide removal in biogas. Banana fiber was selected because of its lignocellulosic composition and porous structure, which provide potential adsorption sites for gas molecules. The experimental setup employed a fixed-bed filtration system in which raw biogas from an anaerobic digester was passed through a column packed with untreated banana fiber. Gas samples were collected before and after filtration and analyzed using Gas Chromatography–Mass Spectrometry (GC–MS) to determine changes in CH₄ and CO₂ concentrations. The results showed that methane concentration increased from 51.37% to 60.84%, corresponding to an enhancement of 9.47%, while carbon dioxide concentration decreased from 48.63% to 39.15%, representing a reduction of 9.48%. These findings indicate that banana fiber effectively improves biogas quality by selectively adsorbing CO₂ and enriching methane content. The adsorption performance is attributed to the presence of hydroxyl (–OH) and carboxyl (–COOH) functional groups in the lignocellulosic structure of banana fiber, which facilitate physical adsorption and enhance gas–solid interactions. In addition, the porous structure of the fiber increases surface area and supports adsorption efficiency. This study demonstrates the effectiveness of untreated banana fiber as a low-cost and environmentally friendly adsorbent for biogas upgrading using GC–MS analysis. The findings highlight its potential application in small-scale and decentralized renewable energy systems, particularly in rural and agricultural areas. Furthermore, the study provides important implications for laboratory-scale biogas purification systems and future industrial biogas upgrading applications.
Ambient Air Quality Assessment During Residential Construction in Jimbaran, Bali I Wayan Gde Sutasoma; Made Ari Riska Dayanti; Made Panji Tirta Prakasa; Ni Wayan Suprianingsih
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 3 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i3.1223

Abstract

Construction activities can temporarily degrade ambient air quality through fuel-combustion emissions and fugitive dust. This study assessed baseline conditions and predicted pollutant dispersion during a residential development in Jimbaran, Bali. Ambient sampling was conducted at a roadside/front-boundary point and the central project site on 22–23 May 2026 for SO?, NO?, CO, O?, non-methane hydrocarbons, TSP, Pb, PM??, and PM?.?. Construction-related increments of SO?, NO?, CO, TSP, PM??, and PM?.? were evaluated using emission-factor calculations and a Gaussian line-source screening model under atmospheric stability class B, a 1.5 m/s wind speed, and a 1.5 m receptor height. All baseline parameters complied with Indonesian ambient air standards, and the initial air quality index was classified as good. At a representative 100 m receptor, both material/equipment mobilization and building-construction scenarios remained below the standards. However, a conservative 10 m mobilization scenario increased NO? to 224.50 µg/m³ and TSP to 484.05 µg/m³ at the roadside point, exceeding the respective standards of 200 and 230 µg/m³. Modelled increments declined sharply with distance, indicating that the principal risk is localised around project access and material-handling routes. The findings support prioritizing covered loads, road wetting, speed control, immediate removal of spilled material, equipment maintenance, and targeted monitoring of NO2, TSP, PM??, and PM?.? at near-source receptors. Contribution to Sustainable Development Goals (SDGs):SDG 3: Good Health and Well-beingSDG 11: Sustainable Cities and CommunitiesSDG 13: Climate Action
Co-Authors I Nyoman Suprapta Winaya I Wayan Gde Sutasoma I Wayan Gde Sutasoma I Wayan Sutama Ida Bagus Alit Swarmardika Made Ari Riska Dayanti Made Ari Riska Dayanti Ni Wayan Suprianingsih Rukmi Sari Hartati Sang Kompiang Rizki Putra Atmaja