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Journal : Journal of Environmental Science and Sustainable Development

USE OF PROBLEM-BASED LEARNING (PBL) MODEL TO IMPROVE LEARNING OUTCOMES IN ENVIRONMENTAL EDUCATION Rachman, Indriyani; Sugimaru, Chika; Matsumoto, Toru
Journal of Environmental Science and Sustainable Development Vol. 3, No. 1
Publisher : UI Scholars Hub

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Abstract

Wastewater and household trash have become serious problems in major Indonesian cities due to the lack of environmental education for children and society as a whole. This paper will examine the urban lifestyle and the processing of waste, followed by an analysis of problem-based learning (PBL) experiments in elementary schools in various cities. The analysis will be supplemented with a questionnaire distributed to the students before and after the PBL trial. The article aims to offer an alternative educational environment that will evoke maximum learning results. It has been prepared using cross-tabulation research methods for three groups: The first group is comprised of students and teachers who have studied environmental education using the PBL method and through workshop activities. The second group comprises teachers who have studied environmental education using workshop activities. The third group includes teachers and students who have studied environmental education without the PBL model or workshop activities. Using cross-tabulation, show that the proportion of respondents increased after implementation compared to before is hand both Groups A and B. Group C does not show much change after implementation. From this study, authors conclude that groups using the PBL learning model with workshops showed significant changes in knowledge aspects.
LIFE CYCLE ASSESSMENT AND COST BENEFIT ANALYSIS OF MUNICIPAL WASTE MANAGEMENT STRATEGIES Soesanto, Qiyam Maulana Binu; Utomo, Laksamana Rayhan; Rachman, Indriyani; Matsumoto, Toru
Journal of Environmental Science and Sustainable Development Vol. 4, No. 1
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Abstract

Cimahi City is located in West Java Province, Indonesia. With a population of half million and the annual waste generation per capita reaching 0.48 kg/day, managing municipal waste has become increasingly challenging. To date, waste management costs in Cimahi City have not been specifically addressed. In addition to the total cost, there is also a plan to move the final landfill site from TPA Sarimukti, which is located approximately 34 km from the city center to a new final landfill site in TPA Legok Nangka, which is located approximately 56 km from Cimahi Municipality. This move will cause an increase in the cost to Cimahi Municipality. The aim of this study was to analyze the optimum waste management strategies for Cimahi City according to the environmental and cost-benefit impacts of the landfill site move. We used life cycle assessment and cost-benefit analysis to determine the optimum solution for waste management strategies of Cimahi City. Four scenarios, including the addition of waste banks, were compared as municipal waste management strategies. The switch of landfills did not contribute significantly to the total CO2 equivalent emitted. Increasing the number of waste banks could be an alternative to reducing the cost of disposing waste to landfills. Scenario (SC)-2 the scenario with additional government waste banks established, provided the highest net present value equal to IDR 1,428,622 per tonne of waste managed and was considered the most profitable in terms of the cost-benefit ratio. Hence, SC-2 was the most preferred for implementation in Cimahi City.
COMMUNITY PARTICIPATION ON WASTE BANK TO FACILITATE SUSTAINABLE SOLID WASTE MANAGEMENT IN A VILLAGE Rachman, Indriyani; Komalasari, Nia; Hutagalung, Ira Rumiris
Journal of Environmental Science and Sustainable Development Vol. 4, No. 2
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Abstract

Community participation is required for managing solid waste. In Indonesia, community acceptance and participation in solid waste management are assessed by the presence of a waste bank at the village or neighborhood level. This study aimed to find out the source, economic potency, and handling system of solid waste in a village setting. This study took place at Ketapang Village, Mauk Sub District, Tangerang Regency, Indonesia. This study evaluated the community participation in the waste bank in Ketapang Village, which is called, Sakumis Bersalaman Waste Bank, and its potential to manage solid waste and generate some profits for the community. Some steps were performed to obtain the answer to the research question. A desk review was conducted to analyze the current waste management practice. Solid waste generation data was taken from an 8-days survey of the collected waste managed by the waste bank. In-depth interviews with 96 households were conducted to find out the potential of future waste bank development. It was found that from 1,988 households in Ketapang Village only 448 households participated in Sakumis Bersalaman Waste Bank. Based on the results of the analysis on the questionnaire which was distributed randomly to 182 households which are communities around the waste bank, it was found that 51.4% of respondents were not yet members of the waste bank. From this percentage, 94.4% of them declared that they want to be waste bank members. It is suggested to Shakumis Bersalaman Waste Bank to add members so that more waste will be recycled. In this way, the community will receive more benefits. From the results, we concluded that community participation through a waste bank, especially a better waste management system, is the potential way to increase the economic level of the village. Moreover, a waste bank could facilitate better solid waste management and produce a sustainable circular economy at the village level.
Co-Authors Ade Gafar Abdullah, Ade Gafar Ahmad, Eka Fitriani Akrim, Djusdil Al Fariz, Reza Darma Al Fariz, Reza Dharma Anggraini, Nani Anna Permanasari Apprianda, Anggun Aqilah, Siti Aquarini Priyatna Arisona, Risma Dwi Asyifa Imanda Septiana Bibin Rubini Budi Handoyo Cintami, Cincin D Prasetyorini Dadang Jaenudin Dahlia, Karlina Puspa Dedi Abdul Hadi Deni Darmawan Deni Kurniawan, Deni Didit Ardianto Fariz, Reza Darma Al Fauzan, Ridho Fujianti, Lia Nurbanillah Fumitoshi, Murae Ghina Nisrina Ramadhanti Hafizhul Khair Hapipah, Hepi Herta Novianto Hestiningtyas Yuli Pratiwi Hutagalung, Ira Ida Hamidah Iga Yusmaidah Siregar Indarini Dwi Pursitasari Ira Rumiris Hutagalung Ira Rumiris Hutagalung Ira Rumiris Hutagalung Irfan Tawakkal Irvan Permana Karim, Zaid Kharisma, Vicka Kodama Yayoi Kodama, Yayoi Kristanti Diana Malo Kuntarti Suhartini Kurniasih, Surti Kusnendar, Jajang Laksmi Dewi, Laksmi Lestari, Suci Putri Maghfiroh, Meilinda Fitriani Nur Marlida, Siti Matsumoto Toru Matsumoto Toru Matsumoto, Toru Mega Subekti Muarif, Samsul Muhammad Ma‘arij Harfadli Muhammad Nur Hudha Muharram, Luthfia Hastiani Mulyadi, Dadi Munawir Munawir Murae, Fumithosi Murae, Fumitoshi Nasution, Muhammad Islam Nia Komalasari Nurahim, Fitra Nursafitri, Siti Onoda, Hiroshi Pandyaswargo, Andante Hadi Permanasari*, Anna Pertiwi, Wulan Qiyam Maulana Binu Soesanto Radde, Hasniar A. Rahayu, Ida Rahayu, Mutia Sri Ramadhanti, Ghina Nisrina Ramdiana Rohmawatiningsih, Wati Rubini*, Bibin Rusman Rusman Safitri, Embun Khoerunnisa Maya Safitri, Tiffany Saldiana, Nur Kamila Santuso, Edy Sattar Sattar, Sattar Sattar Yunus Sianturi, Julinton Siregar, Iga Yusmaidah Siska Mandalia Slamet Raharjo Soesanto, Qiyam Maulana Binu Sugeng Utaya Sugimaru, Chika Suriansyah, Muhammad Iqbal Suriansyah, Muhammad Iqbal Syaban, Mumun Tawakkal, Irfan Toru Matsumoto Toru Matsumoto Toru Matsumoto Toru Matsumoto Utomo, Laksamana Rayhan Wafa, Wafa Warliyah, Heli Wati Rohawatiningsih Wati Rohmawatiningsih Wiwin Wiwin, Wiwin Yayoi Kodama Yayoi, Kodama Yoki Yulizar Yustiani, Yonik Meilawati