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All Journal Jurnal Serambi Engineering Scientific Journal of Mechanical Engineering Kinematika
Shinfi Wazna Auvaria
Universitas Islam Negeri Sunan Ampel
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analysis of Global Warming Potential in Tofu Industry (Case Study: Industry X, Gresik) Ekki Rahmawati; Shinfi Wazna Auvaria; Sulistiya Nengse; Yusrianti Yusrianti; Teguh Taruna Utama
Jurnal Serambi Engineering Vol 7, No 4 (2022): Oktober 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i4.4913

Abstract

Tofu industry is one of the many SMEs operating in Indonesia. These industrial activities have the potential to have an impact on the environment. Industry X, Gresik has an average production capacity of 600-900 kg of tofu every day. The main energy used to produce tofu is firewood. The average daily use of firewood in this industry is 1,520 kg. Burning wood has the potential to cause global warming. In addition, this industry also does not manage its liquid waste which has the potential to cause pollution in aquatic ecosystems. The purpose of this research is to analyze the potential environmental impact of the tofu production process. Data collection methods include observation, interviews, and direct measurement. Data analysis using Life Cycle Assessment method and SimaPro 9.4 Software. Environmental impact assessment using the CML-IA (baseline) method. Based on the results of Simapro analysis, the global warming potential impact is 2,95 x 108 kgCO2-eq
PENGARUH TEMPERATUR DAN WAKTU PROSES TERHADAP KUALITAS MINYAK PIROLISIS LIMBAH PLASTIK LOWDENSITY POLYETHYLENE Dara Rizky Rivaldo Rijadi; Erry Ika Rhofita; Shinfi Wazna Auvaria
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.326

Abstract

The underutilization of plastic waste leads to environmental and health degradation. Utilizing plastic waste as an alternative fuel through pyrolysis is a precise choice for reducing waste quantity and improving environmental quality. This study aims to determine the effect of temperature and pyrolysis time of low-density polyethene (LDPE) plastic waste on the quality of pyrolysis oil. A laboratory-scale fixed batch reactor set to three temperature variations of 520, 550, and 580°C with processing times of 90 and 120 min was used to produce pyrolysis oil from plastic waste. The results showed that to produce more than 55% of pyrolysis yield, it is necessary to increase the processing time by 30 minutes at a temperature of 520°C. Increasing the process temperature to 580°C increased the density and viscosity of pyrolysis oil to 823 kg/m³ and 20 cSt, respectively. However, the calorific value will decrease by 4 MJ/kg; it is mixed with other biofuel products to reduce its viscosity value.
Co-Authors Dara Rizky Rivaldo Rijadi Ekki Rahmawati Erry Ika Rhofita Sulistiya Nengse Teguh Taruna Utama Yusrianti Yusrianti