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All Journal Jurnal Ilmiah Elektronik Infrastruktur Teknik Sipil CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Jurnal Kimia (Journal of Chemistry) Buletin Udayana Mengabdi Jurnal Veteriner MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL TEKNOLOGI LINGKUNGAN BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Teknik Pengairan: Journal of Water Resources Engineering EnviroScienteae Portal: Jurnal Teknik Sipil International Journal of Engineering and Emerging Technology Menara: Jurnal Teknik Sipil Cassowary Jurnal Widya Biologi Agrica: Journal of Sustainable Dryland Agriculture International Journal of Research in Vocational Studies (IJRVOCAS) Nata Palemahan: Journal of Environmental Engineering Innovations Advances in Tropical Biodiversity and Environmental Sciences
Yenni Ciawi
Fakultas Teknik, Universitas Udayana
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Transportation Veterinary Other

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SUSTAINABLE BALLAST WATER MANAGEMENT: MITIGATING ECOLOGICAL IMPACTS AND SUPPORTING MARINE AND COASTAL BIODIVERSITY Gabrina Tonyes, Silvia; Ramona, Yan; Rukayadi, Yaya; Ciawi, Yenni
BIOTROPIA Vol. 33 No. 1 (2026): BIOTROPIA Vol. 33 No. 1 January 2026
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2026.33.1.2504

Abstract

ARTICLE HIGLIGHTS• Reviews global ballast water management for ecological sustainability• Integrates technological, policy, and social perspectives• Links ballast water control to Sustainable Development Goals (SDGs)• Identifies hybrid treatment systems as most effective and eco-safe• Proposes strategies for harmonized global compliance and cooperationABSTRACTBallast water is crucial for the stability and safety of ships but poses significant environmental, economic, and public health risks due to the introduction of invasive species, pathogens, and pollutants into marine ecosystems. This review explores the ecological impacts of ballast water discharge, including biodiversity loss, ecosystem disruption, and public health threats from pathogens and harmful algal blooms. Economic consequences, such as damage to fisheries, aquaculture, and coastal infrastructure, are discussed, along with the social impacts on communities reliant on marine resources. Existing regulatory frameworks, such as the International Maritime Organization's Ballast Water Management Convention, and national policies aim to mitigate these challenges but face implementation and enforcement hurdles. Advancements in treatment technologies are reviewed, including mechanical, chemical, physical, and emerging methods like advanced oxidation processes, electrochlorination, and nanotechnology. Integrated treatment systems are highlighted for their potential to address the limitations of single-method approaches. Case studies illustrate successful implementations, while challenges in cost, scalability, and compliance are identified. The review emphasizes the alignment of ballast water management practices with sustainable development goals, advocating for innovation, international collaboration, and capacity building to enhance effectiveness. Future directions include the optimization of treatment technologies, harmonization of regulations, and incentivization of compliance to achieve global environmental and economic resilience. This review underscores the urgency of advancing sustainable ballast water management to protect marine ecosystems, support coastal economies, and promote public health worldwide.
Exploring Eggshell Waste and Calotropis gigantea Fibers for Eco-Friendly Ceiling Board Applications Mahaputri, Ida Ayu; Adnyaswari , Made Diah Adi; Amanatullah, Muhammad Risqi; Tonyes, Silvia Gabrina; Ciawi, Yenni
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 3 (2025): October 2025
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i03.p08

Abstract

The prohibition of asbestos in ceiling board production, due to its serious health risks, has prompted the search for safer and more sustainable alternatives. Current solutions often rely on non-renewable synthetic fibers, which pose environmental concerns. This study investigates the potential of using two abundant tropical waste materials—Calotropis gigantea leaves and eggshells—as renewable reinforcements in biocomposite ceiling boards. In Indonesia, eggshell waste from households and the food service industry amounts to approximately 483,920 tons annually, while C. gigantea grows widely along the country's coastal areas. The biocomposites were formulated by combining leaf fiber powder and eggshell-derived calcium carbonate (32.63–33.92% CaCO₃) in a resin matrix at various ratios. The resulting panels were evaluated through density, water absorption, drop resistance, and gradual heating tests. All samples exceeded the national density standard (SNI 03-2105) and demonstrated superior water and thermal resistance compared to commercial gypsum and kalsiboard panels. No sample failed under impact or heating up to 200°C. The presence of CaCO₃ contributed to improved mechanical and thermal performance while supporting the substitution of cement-based materials. These findings demonstrate the feasibility of utilizing post-consumer and plant-based tropical waste in environmentally friendly construction materials, offering a promising pathway for sustainable resource use, waste reduction, and green building practices in tropical regions.
Co-Authors Adnyaswari , Made Diah Adi Amanatullah, Muhammad Risqi Anak Agung Gede Indraningrat Ananda Sri Phartiswari Anissa Maria Hidayati AYUB BENNY KRISTIANTO Esti Arisetya Dewi Gabrina Tonyes, Silvia I Dewa Gede Marsta Laksmana I Gusti Agung Ananda Putra I Komang Trisna Satria Pramartha I Made Agus Ariawan I Made Alit Karyawan Salain I Made Dira Swantara I Nyoman Aribudiman I Nyoman Arya Thanaya I Putu Adi Yana I PUTU GUSTAVE SURYANTARA PARIARTHA I W BUDIARSA SUYASA I Wayan Karta I Wayan Redana I.M.A.S. Wijaya Ida Ayu Rai Widhiawati Kadek Diana Harmayani Luh Putu Wrasiati MADE PHARMAWATI Made Rai Rahayu Mahaputri, Ida Ayu Manuntun Manurung Ni Made Puspawati Ni Made Utami Dwipayanti Ni Putu Widayanti Oka Ratnayani Putu Rahayu Natalia Anggraini Supariarta, Made Adi Tonyes, Silvia Gabrina Tungga , Dionisius WIWIK SUSANAH RITA Yan Ramona YAYA RUKAYADI Yohanes Armawan Sandi