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Januar Arif Fatkhurrahman
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Balai Besar Teknologi Pencegahan Pencemaran Industri Bagian Penelitian dan Pengembangan Jl. Kimangunsarkoro No 6 Semarang, Jawa Tengah, Indonesia 50136
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Jurnal Riset Teknologi Pencegahan Pencemaran Industri
Published by Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri
ISSN : 20870965     EISSN : 25035010     DOI : https://doi.org/10.21771
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science
Jurnal Riset Teknologi Pencegahan Pencemaran Industri is published biannualy by the Balai Besar Teknologi Pencegahan Pencemaran Industri, this is Research and Development Institution under Badan Penelitian dan Pengembangan Industri of Ministry of Industry Republic Indonesia. The Jurnal Riset Teknologi Pencegahan Pencemaran Industri covers a broad spectrum of the science and technology of air, soil, and water pollution management and control while emphasizing scientific and engineering solutions to environmental issues encountered in industrialization. Particularly, interdisciplinary topics and multi-regional/global impacts of environmental pollution, advance material, and energy as well as scientific and engineering aspects of novel technologies are considered favorably. The scope of the Journal includes the following areas, but is not limited to: 1. Environmental Technology, within the area of air pollution technology, wastewater treatment technology, and management of solid waste and harzardous toxic substance 2. Process technology and simulation, technology and/or simulation in industrial production process aims to minimize waste and environmental degradation 3. Design Engineering, device engineering to improve process efficiency, measurement accuracy and to detect pollutant 4. Material fabrication, environmental friendly material fabrication as subtitution material for industry 5. Energy Conservation, process engineering / technology / conservation of resources for energy generation.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 132 Documents
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Effect Of Nano Reinforced Adhesive AL Powder And Cnt On Bending Strength Of Hybrid Laminate Structure AL - CFRP Anhar, Muh; Laksana, Lintang Bayu Adi; Wicaksono, Dhimas; Setiawan, Fery
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 16 No. 1 (2025): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2025.v16.no1.p51-60

Abstract

Amphibious aircraft are types of aircraft that can land on land and in water with floating components (floaters).  Amphibious aircraft are capable of landing both on land and water using float-equipped structures. In its operation, it is likely to have a bending force on the floater. When the floater is replaced with a hybrid composite, it is likely to have a light load and high beding value bending value. During operation, the floater is subjected to significant bending forces. Replacing the floater with a hybrid composite results in a lighter structure with improved bending strength. This study aims to analyze the bending test of hybrid composites reinforced with carbon fiber and aluminum faceplates. This study aims to evaluate the bending strength of hybrid composites reinforced with carbon fiber and aluminum faceplates. The method used in this study is vacuum bagging, where the sample is combined with epoxy resin and mixed with carbon nanotube (CNT) nanoparticles and aluminum powder (AL). The study was conducted with adhesive resin, surface treatment and the addition of nano particles to determine the effect of the bending strength of the composite. This study aims to analyze the effect of surface treatment and nanoparticle addition on the flexural strength of the hybrid composite.  The results showed that had a high bending value compared to the variation of specimens without surface treatment or nano particles. Specimens treated with surface modification and nanoparticles exhibited higher bending strength than those without either treatment. The highest bending stress value was obtained by the CNT variation of 133.89 MPa followed by the variation without nano particles of 98.59 MPa, then the variation without surface treatment of 91.76 MPa, and the one with the smallest value was the AL variation of 61.02 MPa. Macro photo analysis after bending test shows the presence of Mixed-mode defects in the specimen. This shows that specimens that have surface treatment and nano particles have better bonds and are able to fill the void in the empty area, so that the bending strength is good. This study provides an important contribution to understanding the variation of adhesives and nano particles on the bending strength of hybrid composites. This study offers preliminary insights into how variations in adhesives and nanoparticles influence the bending strength of a specific hybrid composite system.
Spatial Analysis of Air Pollution Dispersion from a Stationary Source through Wind Profile: Case Study in North Sumatra Manik, Yosef Barita Sar; Siswohartono, Aisyah Bestari; Aulia Rizqi Aufa Rafiqi; Brilian Maulani Putri; Mairuhu, Daffa Renaldhi Chaniago; Sede, Johanes Surya Utama; Nati, Nati
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 16 No. 1 (2025): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2025.v16.no1.p70-77

Abstract

The iron and steel industry constitutes one of the strategic pillars of economic development. However, it is also a major contributor to global air pollution due to high-temperature fossil fuel combustion inherent in its processes. This study aims to analyze the wind characteristics surrounding a steel and iron industrial facility in North Sumatra and to predict the areas most at risk from pollutant dispersion. Meteorological data from the NASA POWER Project database, covering the period from 2021 to 2024, were processed to examine local wind profiles across two distinct seasonal periods—rainy and dry. The analysis revealed that during the rainy season, winds predominantly originated from the northwest, with moderate speeds ranging from 2.10 to 3.60 m/s, leading to pollutant dispersion mainly toward the southeast (145°, 40%). Conversely, in the dry season, wind direction was more variable, as indicated by a low resultant vector percentage (11%), suggesting multidirectional pollutant spread. Across both seasons, the majority of wind speeds were below 2.10 m/s, which limits vertical atmospheric mixing and enhances pollutant retention near the surface. Air stagnation, particularly during transitional periods between seasons and under temperature inversion conditions, further intensifies pollutant accumulation. These findings underscore the critical role of seasonal wind dynamics in air pollution behavior and provide a scientific foundation for developing effective mitigation strategies. Practical policy implications include the establishment of buffer zones in downwind residential or agricultural areas, the implementation of stricter emission controls during periods of low wind speed and stagnation, and the integration of local wind data into early warning systems for air quality. Such measures are essential to protect public health, especially in high-density areas surrounding PT X, including Medan City, Deli Serdang Regency, Serdang Bedagai Regency, and Tebing Tinggi City.

Page 14 of 14 | Total Record : 132

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