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Jurnal Sumberdaya Alam dan Lingkungan
Published by Universitas Brawijaya
ISSN : 23563389     EISSN : 26559676     DOI : https://doi.org/10.21776/ub.jsal
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
JSAL is a journal under the management of the Environmental Engineering Study Program, Agricultural Technology Faculty, Brawijaya University Indonesia which has been established since 2014. The journal periodically publishes three issues in April, August, and December. JSAL accepts article in Bahasa Indonesia or English by covering topics on natural and environmental resource engineering and other related topics. JSAL has been indexed by Google Scholar, GARUDA (Garba Rujukan Digital) and Crossref (DOI/Digital Object Identifier) and Science and Technology Index (SINTA). Also JSAL already has an International Standard Serial Number (ISSN) in both the online (E-ISSN 2655-9676) and print version (P-ISSN 2356-3389). We are looking forward to accepting articles from potential authors, please kindly search our homepage for information and instruction or contact us.
Arjuna Subject : -
Articles 204 Documents
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Kinerja Sistem HHO Berbasis NaOH: Dampak pada Konsumsi Bahan Bakar dan Emisi, serta Tinjauan Singkat Elektrolit Alami Wicaksono, Aris Dwi; Hadi, Wahyono
Jurnal Sumberdaya Alam dan Lingkungan Vol 12, No 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2025.012.02.3

Abstract

ABSTRAK Penelitian ini mengevaluasi kinerja sistem elektrolisis air berbasis natrium hidroksida (NaOH) untuk memproduksi gas HHO dan menilai dampaknya terhadap konsumsi bahan bakar serta emisi gas buang. Pengujian dilakukan pada variasi bentuk elektroda (spiral dan pipa) serta volume larutan (200–220 ml). Hasil menunjukkan bahwa konfigurasi elektroda spiral–220 ml menghasilkan laju produksi gas tertinggi dan menurunkan konsumsi bahan bakar spesifik (Sfc) dari 0.074 menjadi 0.049 kg/Hp·jam. Emisi CO turun dari 2.394% menjadi 0.526% dan HC dari 596.6 menjadi 299.6 ppm. Uji ANOVA mengonfirmasi perbedaan yang signifikan antarkelompok perlakuan (p < 0.05). Selain temuan eksperimental, naskah ini menyajikan tinjauan singkat potensi elektrolit alami (NaCl/air laut) dalam kerangka keberlanjutan, berikut catatan risiko evolusi klorin dan korosi serta rekomendasi praktik keselamatan. Studi ini belum menghitung neraca energi bersih dan emisi NOx; keduanya diusulkan sebagai tolok ukur lanjutan. Temuan menegaskan bahwa NaOH efektif meningkatkan efisiensi dan menurunkan emisi, sementara elektrolit alami berpotensi sebagai alternatif berbiaya rendah dengan pengendalian risiko yang tepat. Kata kunci: ANOVA, elektrolit alami, emisi, HHO, konsumsi bahan bakar spesifik, NaOH  ABSTRACT  This study evaluates the performance of a sodium hydroxide (NaOH)–based water electrolysis system for producing HHO (oxyhydrogen) gas and assesses its effects on fuel consumption and exhaust emissions. Experiments were conducted using two electrode geometries (spiral and tube) and two electrolyte volumes (200–220 mL). The spiral electrode with a 220 mL electrolyte volume yielded the highest gas production rate and reduced the specific fuel consumption (Sfc) from 0.074 to 0.049 kg/HP·h. Carbon monoxide (CO) decreased from 2.394% to 0.526%, while hydrocarbons (HC) fell from 596.6 to 299.6 ppm. ANOVA confirmed statistically significant differences among treatments (p < 0.05). In addition to the experimental findings, the manuscript presents a brief review of the potential of natural electrolytes (NaCl/seawater) in a sustainability context, including risk notes on chlorine evolution and corrosion and recommended safety practices. This study did not compute a net energy balance or measure NOx; both are proposed as future benchmarks. The results indicate that NaOH is effective in improving efficiency and reducing emissions, while natural electrolytes remain a low-cost alternative when risks are appropriately managed. Keywords:  ANOVA, emissions, HHO, NaOH, natural electrolytes, specific fuel consumption
A Study on the Prediction of Acid Mine Drainage Formation Rate Using Free Draining Column Leach Test for Acid Mine Drainage Prevention at Laboratory Scale Jarwinda, Jarwinda; Wibowo, Yudha Gusti; Khanafy, Abdul; Putri, Ilmi Tazkia; Fadillah, M Rizky; Lusitania, Lusitania; Kurniawan, Setyo Budi
Jurnal Sumberdaya Alam dan Lingkungan Vol 12, No 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2025.012.02.4

Abstract

ABSTRAK Acid Mine Drainage (AMD) is a major environmental concern in coal mining, particularly in Indonesia where surface mining is widely practiced. The exposure of sulfide minerals to water and oxygen leads to the formation of acidic, metal-laden leachate that poses significant risks to water resources, soil quality, and human health. Conventional treatment methods are often expensive and unsustainable, highlighting the need for preventive approaches. This study aims to predict and minimize AMD formation using the Free Draining Column Leach (FDCL) test under simulated wet-dry cycles. Various configurations of Potentially Acid Forming (PAF) and Non-Acid Forming (NAF) materials were tested, with the addition of biochar and zeolite as amendment layers. Static tests, including paste pH, NAG pH, NAPP, and Acid-Base Accounting (ABA), were used to classify the acid-generating potential of the samples. X-ray Diffraction (XRD) was conducted to assess mineral composition, and leachate was analyzed for pH and Total Dissolved Solids (TDS). Results showed that Scheme 3 (PAF–NAF–PAF) had the highest acid generation potential (pH < 4), while Schemes 4 and 5, which included biochar and zeolite, maintained neutral to alkaline conditions and lower TDS. These findings demonstrate the potential of local materials to reduce AMD risks and emphasize the importance of early prevention strategies. The FDCL method offers a valuable tool for improving mine waste management in alignment with sustainable mining practices. Keywords: Acid mine drainage; FDCL test; AMD prediction; biochar; zeolite; mine waste management
Improved Performance of Wolo Irrigation Area through Integrated Management and e-PAKSI/eA-AMPIS Application Hasrat, Andi; Sukri, Ahmad Syarif; Ilham, Ilham; Wibowo, Dwiprayogo
Jurnal Sumberdaya Alam dan Lingkungan Vol 12, No 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2025.012.02.5

Abstract

The performance assessment of the Wolo Irrigation Area (WIA) is crucial for ensuring efficient water management and sustainable agricultural productivity. This study evaluates WIA’s operational performance using the e-PAKSI or eA-AMPIS application as a digital platform designed for integrated irrigation performance monitoring. The assessment results show a performance index of 60.44%, indicating that several functional aspects require improvement. Unlike previous studies that relied solely on manual field evaluation, this research integrates digital data collection through electronic Performance Assessment and Irrigation System Information (e-PAKSI) to provide more accurate, real-time, and traceable performance indicators. The findings highlight the need for targeted management strategies focusing on infrastructure maintenance, operational efficiency, and community-based institutional strengthening. Implementing these strategies can enhance WIA’s functionality and support sustainable irrigation management in similar regional systems.
Pemanfaatan Ekstrak Silika Bottom Ash Batubara untuk Reaksi Hidrolisis Aluminium dalam Produksi Gas Hidrogen di Fixed Bed Reactor Wulandari, Wahyu; Junaidi, Robert; Hasan, Abu
Jurnal Sumberdaya Alam dan Lingkungan Vol 12, No 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jsal.2025.012.02.2

Abstract

ABSTRAK Hidrogen merupakan salah satu sumber energi potensial yang berkelanjutan dan bersih dengan kepadatan energi tinggi (140 MJ/kg). Abu berat merupakan limbah padat yang sulit larut dan menguap serta memerlukan pengolahan khusus. Pembakaran batubara di PLTU menghasilkan limbah berupa fly ash dan bottom ash dalam jumlah besar setiap tahunnya, yang berpotensi mencemari lingkungan jika tidak dimanfaatkan dengan tepat. Pada tahun 2021, Indonesia menghasilkan sekitar 9.7 juta ton limbah abu terbang (fly ash dan bottom ash). Tujuan dari penelitian ini adalah memanfaatkan kandungan 53-70 Si pada abu terbang untuk meningkatkan gas hidrogen dengan menambahkan zat pereduksi aluminium dan memvariasikan konsentrasi katalis KOH. Katalis KOH digunakan karena KOH menghasilkan lebih banyak gas hidrogen dibandingkan NaOH. Penelitian ini dilakukan dengan mereaksikan 3 sampai 6 gram aluminium: silikon dengan air suling dan katalis KOH 4,5 M - 5M dan ini dilakukan pada temperatur 50°C selama 15 menit. Dengan berat auminium:silicon 6 gran dan konsentrasi KOH 5.5 M menghasilkan produksi gas hydrogen sebesar 68%. Semakin banyak penggunaan aliminium:silikon dan semakin tinggi konsentrasi KOH yang digunakan maka gas hidrogen yang dihasilkan akan semakin banyak. Kata kunci: Aluminium, bottom ash batubara, hidrogen, silikon ABSTRACT Hydrogen is a potential sustainable and clean energy source with a high energy density (140 MJ/kg). Heavy ash is a solid waste that is difficult to dissolve and evaporate, requiring special treatment. In 2021, Indonesia produced approximately 9.7 million tons of fly ash and bottom ash. This study aims to utilize the 53–70% Si content in fly ash to enhance hydrogen gas production by adding aluminum as a reducing agent and varying the concentration of KOH catalyst. KOH was selected as the catalyst because it generates more hydrogen gas compared to NaOH. The experiment was carried out by reacting 3 to 6 grams of aluminum:silicon with distilled water and KOH catalyst at concentrations ranging from 4.5 M to 5 M, maintained at 50°C for 15 minutes. The highest hydrogen gas production of 68% was obtained with 6 grams of aluminum:silicon and a KOH concentration of 5.5 M. The results showed that increasing the amount of aluminum:silicon and the concentration of KOH led to greater hydrogen gas generation. Keywords:  Aluminum, coal bottom ash, hydrogen, silicon

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