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3 2023

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The Effect of the COVID-19 Pandemic on Waste Management in the Eastern Tourism Regions of Java and Bali Islands

100%

Septiariva I. Y. , Sari M. M. , Istanabi T. , Suhardono S. , Prayogo W. , Suryawan I. W. K.

tom Vol. 24, iss. 3

1--9

The tourism sector is one of the sectors that has been negatively affected by the COVID-19 pandemic. Increased waste generation is a significant problem that tourist areas must face during the COVID-19 pandemic. Therefore, to reduce the impact, research was carried out on waste management before and during the pandemic in regional tourism areas, especially in the eastern part of Java and Bali. This study aims to analyze the changes and composition of waste and during the COVID-19 pandemic in tourist areas in the Eastern Tourism Areas of Java and Bali. Collecting, processing data, and statistical analysis carry out the research method. Based on the study results, the waste generation generated in eight eastern regencies of Java and Bali experienced a change between -5.67% to 1.82%. Plastic waste increased by 27.61% during the pandemic, while mask waste increased by 1.23% in one area. Waste management also changed from -0.011% to 1.821%. The analysis results using ANOVA showed that the COVID-19 pandemic significantly affected the amount of waste generated by the eight tourist areas, with the main contribution caused by an increase in mask waste.

Transforming Bubble Wrap and Packaging Plastic Waste into Valuable Fuel Resources

100%

Sari M. M. , Inoue T. , Rofiah R. , Septiariva I. Y. , Prayogo W. , Suryawan I. W. K. , Arifianingsih N. N.

2023

tom Vol. 24, nr 8

260--270

This study aimed to investigate the potential of plastic waste, specifically bubble wrap and packaging plastic, as a fuel source through pyrolysis process. The samples were analyzed using FTIR and GC-MS. The results showed that both samples contained alkanes and alkenes, with hydrocarbon fractions like those found in gasoline, kerosene, and diesel fuel. The pyrolysis process resulted in hydrocarbon fractions ranging from light to heavy fractions. The bubble wrap sample showed the highest percentage of hydrocarbon fraction in the kerosene range (C10–C13), with an area of 19.23%. In contrast, the packaging plastic sample showed the highest percentage of hydrocarbon fraction in the diesel range (C14–C20), with an area percentage of 19.67%. The calorific value of the pyrolysis products was also determined, with the bubble wrap sample having a higher value than that of gasoline, while the packaging plastic sample had a value close to that of kerosene. The results of this study suggest that plastic waste has the potential to be converted into fuel, which can contribute to sustainable development by reducing dependence on fossil fuels and reducing plastic waste. However, further refinement of the pyrolysis products is needed to meet commercial fuel standards.

Utilizing Pyrolysis of Plastic Debris for Refuse-Derived Fuel Production and Viable Substitute to Wood Debris

67%

Mutiara Sari M. , Inoue T. , Harryes R. K. , Septiariva I. Y. , Yokota K. , Notodarmodjo S. , Kato S. , Al Ghifari R. M. , Suhardono S. , Suryawan I. W. K. , Prayogo W. , Arifianingsih N. N.

tom Vol. 24, iss. 8

133--142

This research explores the viability of converting discarded Polyethylene Terephthalate (PET) plastic waste into a valuable resource through the implementation of pyrolysis and refuse-derived fuel (RDF) technologies. The objective is to assess the potential of PET charcoal waste as an efficient source for RDF generation, surpassing the energy recovery and recycling potential of PET waste. The study introduces three RDF variants: RDF PET100, RDF PET50, and RDF PET0. RDF PET100 is comprised entirely of PET charcoal, RDF PET50 combines 50% PET charcoal with 50% wood debris, and RDF PET0 consists entirely of wood debris. Comprehensive assessments of water content, ash content, and calorific value were conducted to evaluate the quality of these RDF formulations. Results indicate that RDF PET100 exhibits a water content of 2.63%, ash content of 0.73%, and calorific value of 5,976 MJ/kg. Similarly, RDF PET50 showcases a water content of 3.6%, ash content of 1.05%, and calorific value of 5,587 MJ/kg. RDF PET0 presents a water content of 7.51%, ash content of 1.36%, and calorific value of 4,198 MJ/kg. The outcomes underline the potential of PET plastic waste repurposing through RDF and pyrolysis techniques. Particularly, RDF PET100 emerges as a high-caliber fuel option characterized by its minimal water and ash content, coupled with a substantial calorific value. This innovation holds promise in mitigating plastic waste challenges, particularly pertinent in the context of Indonesia.