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All Journal Asia-Pacific Management and Business Application International Research Journal of Business Studies (E-Journal) Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Aptisi Transactions on Technopreneurship (ATT) International Journal of Economics Development Research (IJEDR) Journal of Environmental Science and Sustainable Development Emerging Markets : Business and Management Studies Journal Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences The South East Asian Journal of Management Eduvest - Journal of Universal Studies EcoProfit : Sustainable and Environtment Business Journal of Economic, Business & Accounting Research Interaction, Community Engagement, and Social Environment Jurnal Penelitian Pendidikan Indonesia International Research Journal of Business Studies Journal of Entrepreneurial Economics Kemakmuran Hijau: Jurnal Ekonomi Pembangunan Jurnal Inovasi Pangan dan Gizi Sustainable Urban Development and Environmental Impact Journal Journal of Economic Resilience and Sustainable Development
Ratih Dyah Kusumastuti
Department Of Management, Faculty Of Economics And Business, Universitas Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Neuroscience Public Health Social Sciences Other

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Journal : Journal of Environmental Science and Sustainable Development

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SIMULATION OF BLOOD INVENTORY MANAGEMENT: CASE OF THE INDONESIAN RED CROSS JAKARTA BRANCH Ekaputri, Azaria; Kusumastuti, Ratih Dyah
Journal of Environmental Science and Sustainable Development Vol. 5, No. 2
Publisher : UI Scholars Hub

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With around 5.6 million tons of annual plastic consumption and merely 7 percent plastic recycling rate, Indonesia is facing a plastic pollution crisis. The recent progress of Indonesia’s recycling industries has provided an asset to address this crisis. In 2017, the domestic post-consumption plastic waste could only fulfil around 24 percent the domestic needs for recycled plastic, which stands at 1.65 million ton/year. Leveraging the plastic waste ‘asset’ through circular economy can fill this demand gap. A five-month study was conducted to analyse the recycling rate of Polyethylene terephthalate (PET) and Polypropylene (PP)-based beverage plastic packaging in Greater Jakarta Metropolitan Area to see their potential in fostering circular economy. Structured interview involving 385 upstream and downstream recycling actors in Greater Jakarta Metropolitan Area provided primary data for the study. While secondary data from previous studies, academic journals, Nielsen’s audit data and electronic sources complement the primary data, particularly regarding recycling actors and packaging consumption rate. The study showed that over 329 tons of beverage plastic packaging waste was collected daily in Greater Jakarta Metropolitan Area, in which PET-based packaging had accounted for 78 percent of them. Waste pickers play a key role here by contributing to 65% of the collected PET waste. The study also showcased a mature recycling chain of PET and PP-based packaging with its recycling rate that reaches 74 to 93 percent. Looking at their economic value, PET and PP contributed 30 to 51 percent to the income of waste collectors. It can also be estimated that economic activities related to PET management in the could generate IDR 700 million per day at collector level only. The demands of PET continue to increase following the growing innovation in PET-based products. An effectively managed PET and PP plastic system could simultaneously address this demand and foster circular economy.
DETERMINING THE DE-DIESELISATION PRIORITIES OF DISTRIBUTED DIESEL GENERATORS IN AN ELECTRICITY COMPANY Nurdianto, Kresna; Kusumastuti, Ratih Dyah
Journal of Environmental Science and Sustainable Development Vol. 7, No. 2
Publisher : UI Scholars Hub

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The Indonesian Electricity Company (PLN) is one of the main players in the energy transition in Indonesia, and the company plans to achieve net zero emissions by 2060. One way to do this is by implementing the de-dieselisation program, i.e. reducing the use of diesel power plants (PLTD) with new energy and renewable power plants. The Indonesian electricity supply business plan (RUPTL) 2021-2030 targets the reduction of electricity supply from PLTD by 87% by 2030. The program requires a method to determine the order of priorities of PLTDs to be de-dieselised. This research uses multicriteria decision making, namely, analytical hierarchy process (AHP) and technique for order preference by similarity to ideal solutions (TOPSIS) to develop a prioritisation methods and determine the rank of priorities of 22 PLTDs Sumatra island that will undergo de-dieselisation. The criteria are identified from the literature and confirmed with four experts from the company. The criteria are categorised into security of supply, costs, and environmental factors. AHP is then used to calculate the weight of all criteria and sub-criteria, while TOPSIS is used to determine the rank. The results show that the affordability criterion is the most critical factor (0.535), followed by the security of supply (0.312) and environmental factors (0.153). The results also show that PLTD A18, A14 and A7 are the top three PLTDs prioritised for de-dieselisation because they provide the closest distance to the ideal criteria. This research contributes by providing reference in selecting the PLTD that will be selected for de-dieselisation program.
Co-Authors Adrin, Ghea Rizky Antonio, Bonny Tofani Bonny Tofani Antonio Bustaman, Yosman Dwi Nastiti Danarsari Dwiyana, Meidi Ekaputri, Azaria Fanny Martdianty Hendrawidjaja, Josef Budi Husodo, Zaafri Ananto Jayanagara, Oscar Keanoubie, Muhammad Kusuma, Anak Agung Ngurah Abidzarr Dipo Lea Pungky Rahayu Lenny Suardi Lidiawaty, Lenny Mahmudi Mauliate, Andreas Immanuel Muhammad, Harrtyan Natasaputra, Nugraha Natasaputra, Nugraha Nindiya, Theresia Mayke Nugraha Natasaputra Nur Habibah Nur Habibah Nurdianto, Kresna Nurmala Nurmala Nurmala Nurmala Okatria, Luqy Afifah Putra, Alexander Evan Rahayu, Lea Pungky Rifelly Dewi Astuti Salsabila Izzati Syalianda Saraswati, Mia Soetjipto, Budi Widjaja Suardi, Lenny Sucipta, Hardiansyah Syalianda, Salsabila Izzati Viverita Viverita Yosman Bustaman