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All Journal Envirous Serambi Engineering
Claudya, Agnes Lidya
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Public Health

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Pengaruh Kegiatan Pembangkit Listrik Tenaga Gas dan Uap PT X Terhadap Emisi Gas SO2 dan NOx Mukharomah, Nur Laili Alfiatin; Ningrum, Dwi Mulyati; Claudya, Agnes Lidya
Envirous Vol. 5 No. 2 (2025): Jurnal Envirous
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirous.v5i2.346

Abstract

Climate change is a global phenomenon that triggers social and ecological crises. Indonesia has committed to the Sustainable Development Goals (SDGs) to reduce greenhouse gas (GHG) emissions as stated in the Nationally Determined Contribution (NDC). The NDC targets lowering emissions by 41% by 2030 with independent efforts and international assistance. This study aims to analyze SO2 and NOx emissions from the Gas and Steam Power Plant (PLTGU) at X Company, with reference to the applicable air quality standards, namely the Regulation of the Director General of Pollution Control and Environmental Damage Number P.17/PPKL/PPU/KUM.1/10/2022. The methods used in the analysis process are USEPA Method 6C: 2017 in determining Sulfur Dioxide (SO2) gas and USEPA Method 7E: 2020 in determining Nitrogen Oxide (NOx) gas. Field measurements were conducted at several sampling points in HRSG Blocks II.1, II.2, and II.3. The analysis results show that the SO2 and NOx emission concentrations are still below the maximum permissible limits with the highest SO2 and NOx emission concentrations of 291 Mg/Nm³ and 6 Mg/Nm³, respectively
Energy Potential and Impact of Briquettes Produced from Soy Sauce Industry Soybean Waste and Sugarcane Bagasse Claudya, Agnes Lidya; Farahdiba, Aulia Ulfah; Yayok Suryo Purnomo
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Indonesia's energy demand continues to increase, but energy fulfillment still relies on coal, which has a negative impact on the environment. Seeing the potential of biomass as fuel, this study is intended to analyze the potential use of soybean dregs from soy sauce factories and sugarcane bagasse as fuel and to evaluate the characteristics of biomass briquettes according to the composition and particle size of the materials. Sugarcane bagasse and soy sauce bagasse were varied with a ratio of 63%:27%, 45%:45%, and 27%:63%, respectively with a mixture of 10% adhesive from cassava flour and molasses. The mesh size was chosen at 80 (177 μm) and 150 (99 μm) to compare the effect of particles <100 μm and >100 μm. Briquettes with characteristics that meet almost all aspect standards are briquettes with a composition of 27% soy sauce dregs and 63% sugarcane dregs with a mesh size of 150. The results of the water content are 4.20%, ash content 7.46%, volatile matter content 23.73%, and calorific value 5948 calories/gram. However, the results of the CO emission test in the early minutes of combustion (1287 ppm) did not meet the quality standard. This study proves that soy sauce dregs and sugarcane dregs waste can be an  environmentally friendly alternative fuel with further emission control.
Co-Authors Aulia Ulfah Farahdiba Mukharomah, Nur Laili Alfiatin Ningrum, Dwi Mulyati Yayok Suryo Purnomo