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All Journal International Journal of Public Health Science (IJPHS) AQUATIC SCIENCE & MANAGEMENT Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan CogITo Smart Journal Jurnal Serambi Engineering Ekuilibrium : Jurnal Ilmiah Bidang Ilmu Ekonomi International Journal of Marine Engineering Innovation and Research Journal of Sustainable Infrastructure
Sapta Suhardono
Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Impacts of Sanitation Practices on Human Development: A Decade-Long Analysis of the Malang District Angga Dheta Shirajjudin Aji; Sapta Suhardono; I Wayan Koko Suryawan; Wisnu Prayogo
EKUILIBRIUM : JURNAL ILMIAH BIDANG ILMU EKONOMI Vol 19, No 2 (2024): September
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/ekuilibrium.v19i2.2024.pp276-288

Abstract

This study explores the influence of various sanitation practices on the Human Development Index (HDI) in the Malang District from 2011 to 2020. Employing a multiple linear regression analysis, the research examines the relationship between the HDI and five critical sanitation practices: access to wastewater treatment plants, open defecation prevalence, septic tank usage, and direct waste disposal into water bodies and onto land. Secondary data was sourced from the Badan Pusat Statistika of Malang District, ensuring robust and authoritative information spanning over a decade. Preliminary diagnostics were performed to affirm the data's suitability for regression analysis. The results indicated a significant negative impact of direct disposal into water bodies on HDI, emphasizing the critical role of effective waste management practices in promoting human development. The study underscores the need for integrated policy approaches that address sanitation infrastructure improvements, environmental protection, and education on public health practices. This paper contributes to the literature by quantifying the effects of sanitation on human development over an extended period. It offers evidence-based recommendations for policymakers to support sustainable development goals in the region.
Assessing the Environmental and Health Impacts of Thermal Waste and Landfill-Based Waste Management Angga Dheta Shirajjudin Aji; Sapta Suhardono; I Wayan Koko Suryawan; Wisnu Prayogo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 2 (2024): July 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i2.570-585

Abstract

According to Presidential Regulation No. 35 of 2018, which focuses on accelerating the development of waste-to-energy projects, Denpasar City in Bali has been identified as one of the key Indonesian cities for implementing these projects. The daily waste generation in Denpasar City is estimated at 750 tons. The city's sanitation strategy outlines that 20% of this waste will be reduced at its source, while the remaining 80% is managed at the final treatment site. This study employs the Life Cycle Analysis (LCA) approach to evaluate the environmental impacts of traditional landfilling and various thermal waste treatment methods. The findings reveal that gasification (Scenario 2) has the lowest Global Warming Potential (GWP), with 779,759 kg CO2 equivalent emitted, indicating its superiority in reducing greenhouse gases. In contrast, landfilling (Scenario 1) is the least favorable, with a GWP of 2,885,770 kg CO2 equivalent and a significant cancer risk due to hexavalent chromium emissions estimated at 1,634,050 kg equivalent. These results underscore the health and environmental hazards of landfilling. Further, the study delves into each treatment scenario's impact on acidification, eutrophication, global warming potential, and photochemical oxidation.
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.
An Analysis of Challenges, and Prospects of Overcrowding and Heritage Small Island as a Tourism Destination: Pulau Lengkang, Batam Case Study I Wayan Koko Suryawan; Sapta Suhardono; Iva Yenis Septiariva; Wisnu Prayogo
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.5045

Abstract

This paper explores Pulau Lengkang, an island near Batam City, known for its natural beauty and cultural heritage. It examines the impact of overcrowding on its aspiration to become a prominent tourism heritage destination. The main goal is to analyze the strengths, weaknesses, opportunities, and threats Pulau Lengkang faces in its development into a renowned tourist hub, with a focus on the challenges of overcrowding and the potential for sustainable tourism. The study employs a qualitative approach, relying on thorough literature review to understand the island's unique cultural and historical aspects and the implications of increasing visitor numbers on its heritage and environment. The findings reveal that while Pulau Lengkang boasts significant cultural and historical appeal, overcrowding threatens to strain its infrastructure and dilute its heritage. However, opportunities for sustainable tourism and cultural preservation present viable pathways to enhance its tourism appeal and support local community well-being. The study suggests that adopting eco-tourism and cultural engagement strategies can help safeguard Pulau Lengkang's heritage and promote sustainable development.
Composting as a Strategy for Biodegradable Marine Debris Reduction and Management in Jakarta Mega Mutiara Sari; Takanobu Inoue; Regil Kentaurus Harryes; Kuriko Yokota; Iva Yenis Septiariva; Sapta Suhardono; Shigeru Kato; Suprihanto Notodarmojo; I Wayan Koko Suryawan
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.5046

Abstract

This study explores the potential for managing biodegradable marine debris waste in Jakarta City through composting, aiming to reduce and treat this waste effectively. In Jakarta, river debris predominantly consists of materials that degrade easily and are biodegradable. Composting represents the most straightforward method for processing this type of organic waste. The study's objective was to evaluate the feasibility of composting organic biodegradable river debris as a waste management strategy. Data collection was conducted at Emplacement Pluit, utilizing random sampling with the four quadrants method. Out of the total river debris generated daily, which amounts to 309 m³, approximately 9.07 m³/day was found suitable for composting. The composting process resulted in a significant reduction of river debris volume by 50.15% within a 30-day detention period. This process was facilitated by mesophilic microbial activity at temperatures between 30-38°C. During the first two weeks, the composting environment remained acidic until the pH stabilized to a normal range between 6.8 and 7.49. A notable observation was the high initial water content of the river debris, recorded at 53.846%, which only reduced to 42.857% by the end of the 30-day decomposition period. Therefore, a pretreatment step is recommended to optimize the water content before composting. Despite these challenges, the compost produced met the required standards set by SNI 19-7030-2004. This study underscores the importance of managing biodegradable organic waste at its source to alleviate the burden on landfills, which are currently operating beyond their capacity.
Co-Authors Ahmad Zulfikar Annisa Fillaeli Annisa Kamilia Nastiti Anshah Silmi Afifah Ari Rahman Aura Dhia Rizki Atthar Desi Paskalia Tinambunan Evi Siti Sofiyah Fikri Damara Harryes, Regil Kentaurus I Wayan Koko Suryawan I Wayan Koko Suryawan Imelda Juniaty Sianipar Imelda Masni Juniaty Sianipar Iva Yenis Septiariva Iva Yenis Septiariva Kuriko Yokota M. Faisi Ikhwali Mega Mutiara Sari Mega Mutiara Sari Meuthia Fadila Michael Yosafaat Nur Novilina Arifianingsih Rachmat Mulyana Reifaldy Tsany Betta Aryanto Sakkot Matua Gong Hasibuan Shigeru Kato Silvia Verdiana Stacia Dea Prameswari Suprihanto Notodarmojo Suprihanto Notodarmojo Suryawan, I Wayan Koko Syahda Hati Dendra Takanobu Inoue Trida Ridho Fariz Wisnu Prayogo Yesaya Emeraldy Priutama