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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Wilayah dan Lingkungan International Journal of Marine Engineering Innovation and Research Journal of Sustainable Infrastructure
Ari Rahman
Universitas Pertamina
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Studi Pemanfaatan Biogas dari Limbah Rumah Potong Hewan untuk Mendukung Ketahanan Energi di Kota Bandung Anita Juraida; Yudha Prambudia; Ari Rahman
Jurnal Wilayah dan Lingkungan Vol 7, No 1 (2019): April 2019
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jwl.7.1.26-37

Abstract

Energy demand, particularly electricity for many activities, increases in line with the growth of urban population. Nowadays, most of energy supply in urban area is still dominated by the fossil fuel sources. As the use of fossil fuel increases, so does the greenhouse gas emission closely linked to global warming effects. Moreover, population growth also implies on waste production resulted from industrial and domestic activities. This paper applies waste to energy concept by estimating potential renewable energy from the slaughterhouse waste in Bandung City, Indonesia. This study is aimed to predict the potential contribution of waste from cattle, consisting of blood, rumen and feces from the slaughterhouses for biogas production. This research applies direct observation technique, interview and literature review methods. The location of this research was at the public and private slaughterhouses in Ciroyom, Cirangrang, and Regol of the Bandung City. The results showed that biogas could be produced by 139,977 m3/year equivalent to 658 MWh/year of electricity production. To support the city’s energy security, this potential energy source may contribute around 49.8% of the household electricity supply equivalent to 16.7% of the total electricity supply in Bandung City. This finding could be beneficial to the larger pilot study concerning the sustainable city program.
Design of Hazardous Waste Storage Area for Fecal Sludge Briquettes by Waste Impoundment in Indonesia Nova Ulhasanah; Dhea Umi Falentina Widanarko; Falia Ayu Erlingga; Elsyah Bhima Fitrah; Wira Aulia; Dessy Maya Sari; Ari Rahman
Journal of Sustainable Infrastructure Vol. 1 No. 1 (2022): Future Sustainable Development
Publisher : Fakultas Perencanaan Infrastruktur, Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61078/jsi.v1i1.5

Abstract

The high production and sufficient calorific value content of the fecal sludge make it can be made as a raw material for producing briquettes. This supports the world's program in an effort to create alternative energy to replace fossil fuels. The purpose of this research is to design a production building and storage of fecal sludge into briquettes in a sewage treatment company so as to minimize the potential hazards of the sludge (accidents in the work placement and the negative impact on the environmenty) as flammable hazardous waste. At the beginning of the design, 3 alternative designs were assessed using the Analytical Hierarchy Process (AHP) method. the chosen alternative is alternative 3 with the proposed redesign of the briquette storage building, production site, and fecal sludge storage area separately, where the sludge storage area which was originally a hangar was converted into a waste impoundment system. The building design criteria for alternative 3 are fire-resistant buildings whose specifications are regulated by the Indonesian National Standard 03-1736-2000 and several other regulations (PERMENLHK No. 12, 2020 and BAPEDAL No. 1, 1995). With a planned storage duration of 1 year, the waste impoundment is designed to cover an area of 2304 m3 of fecal sludge, 72 storage drums for carbonated sludge, and 95 storage drums for fecal sludge briquesttes. In addition, the waste impoundment design is based on the PERMENLHK standard No. 12 of 2020. Waste impoundment can reduce the pH and Total Suspended Solid (TSS) of hazardous waste to below the quality standard threshold. the acidity level of the waste can be neutral to pH 7.79 (threshold 6-9), and TSS down to 86.67 mg/l (threshold 200 mg/l). The results of this study can make a major contribution to the field of hazardous waste management, especially fecal sludge, not only for Indonesia but also for countries that have similar conditions.
Exploring the Potential of Solar Energy in Mosque Buildings: A Case Study of Dumai Islamic Centre Mosque in Riau Province, Indonesia Nia Armelia Putri; Ari Rahman; I Wayan Koko Suryawan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 3 (2023): November 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i3.621-632

Abstract

This study investigated the implementation of solar panels in the Dumai Islamic Centre (DIC) Mosque, located in Dumai City, Riau Province, to reduce carbon emissions. The study presents an overview of the significance of solar energy utilization and its potential benefits in the context of mosque buildings. This research was aimed to assess the criteria for selecting the appropriate solar panel type, determine the power output and PV area required for the DIC Mosque, and estimate the carbon emissions reduction resulting from installing solar panels. The study employed a quantitative research design and utilizes the Analytic Hierarchy Process (AHP) to select the most suitable solar panel type. The results reveal that polycrystalline solar panels are the optimal choice based on efficiency, power peak, operation and maintenance, and price criteria. Installing solar panels on the DIC Mosque's roof, positioned at an optimal height, ensures maximum sunlight exposure and energy generation efficiency. Calculations demonstrate a significant reduction in carbon emissions post-installation. The carbon emissions reduction potential is estimated at 57.693 kg CO2 eq per day or 21,057.95 tons CO2 eq per year. This highlights the positive environmental impact of solar energy implementation in the DIC Mosque.
Preliminary Study on Willingness to Pay for Adaptive Management in Komodo National Park: A Contingent Valuation Approach Syahda Hati Dendra; Imelda Juniaty Sianipar; Ari Rahman; Evi Siti Sofiyah; Sapta Suhardono; I Wayan Koko Suryawan
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 4 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.4822

Abstract

Komodo National Park (KNP), a UNESCO World Heritage Site, faces significant environmental challenges due to increasing tourism, climate change, and resource management issues. This preliminary study employs the Contingent Valuation Method (CVM) to estimate visitors' willingness to pay (WTP) for adaptive management initiatives aimed at preserving the park's unique biodiversity and ecological health. Conducted in Labuan Bajo, the main gateway to KNP, the study involved 50 respondents who were surveyed on their WTP for improved environmental quality and management. The binary logistic regression analysis revealed that higher income levels and gender significantly influence WTP, with higher income individuals and males being more likely to contribute financially. Marital status showed a negative association with WTP, suggesting that married individuals may have financial constraints. The study highlights the importance of understanding sociodemographic factors to design effective funding strategies for conservation. The findings underscore the need for targeted communication and engagement strategies to increase financial support for adaptive management. These insights will inform policy and management strategies to ensure the long-term sustainability of KNP.
Co-Authors Anita Juraida Dessy Maya Sari Dhea Umi Falentina Widanarko Elsyah Bhima Fitrah Evi Siti Sofiyah Falia Ayu Erlingga Imelda Juniaty Sianipar Nia Armelia Putri Nova Ulhasanah Prambudia, Yudha Sapta Suhardono Suryawan, I Wayan Koko Syahda Hati Dendra Wira Aulia