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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan
Lia Nurbanillah Fujianti
Kitakyushu University
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Granulated Biochar–MMT–Zn/Al LDH Composite as a Durable Adsorbent for Column Applications Rahmat Fadhilah; Destria Enjelika; Dedy Anwar; Sudibyo Sudibyo; Asnan Rinovian; Hana Safitri; Lia Nurbanillah Fujianti; Dodi Devitriano; Hutwan Syarifuddin; Anis Tatik Maryani; Yudha Gusti Wibowo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Granular adsorbents are essential for fixed-bed column systems because they reduce the pressure drop and minimize the material loss commonly associated with powdered adsorbents. However, transforming powdered materials into mechanically stable granules without compromising their structural integrity remains a significant challenge. In this study, a granulated composite consisting of biochar, montmorillonite (MMT), and Zn/Al layered double hydroxide (LDH) was developed as a potential adsorbent for column application. Biochar derived from Avicennia marina biomass was combined with MMT and Zn/Al LDH to produce a composite material, which was subsequently granulated using bentonite, tapioca starch, and polyvinyl alcohol (PVA) as binding agents. The resulting granules (0.5–1.5 cm in diameter) were evaluated for mechanical durability under static water immersion and dynamic water flow conditions. The results indicate that the binder composition strongly influences granule stability. Granules prepared without PVA rapidly disintegrated in aqueous environments, whereas the inclusion of PVA significantly improved structural durability. The optimized formulation exhibited durability of up to 8208 min under static conditions and maintained its structural integrity under continuous water flow. These results demonstrate the potential of Biochar–MMT–Zn/Al LDH granules as durable adsorbents for fixed-bed column water treatment systems
Carbon Literacy in Higher Education: A Systematic Review of CO₂ Emission Education and Its Impact on Student Behavioral Change Iwan Maryawan; Herpratiwi Herpratiwi; Sowiyah Sowiyah; Melya Riniarti; Riswanti Rini; Rini Nurindarwati; Lia Nurbanillah Fujianti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Carbon literacy education has emerged as a key strategy for addressing climate change by enhancing environmental awareness and promoting pro-environmental behavior among university students. This study presents a systematic literature review examining how CO₂ emission education is conceptualized, implemented, and evaluated within higher education institutions and its influence on student behavioral change. This review synthesizes peer-reviewed studies published between 2015 and 2026, focusing on conceptual frameworks, pedagogical approaches, and behavioral outcomes. The findings indicate that carbon literacy education improves climate knowledge, strengthens environmental attitudes, and increases students’ intentions to adopt sustainable practices in the future. Pedagogical strategies, such as experiential learning, project-based learning, life cycle assessment, and campus-based sustainability initiatives, play a critical role in translating knowledge into actionable competencies. However, a persistent awareness–action gap remains, wherein increased knowledge does not consistently lead to sustained behavioral change. The effectiveness of educational interventions is strongly influenced by psychological engagement, social learning environments and institutional support. Overall, this study emphasizes the need for integrated and interdisciplinary approaches that combine cognitive, experiential, and institutional dimensions. Embedding carbon literacy across curricula and campus practices can enable higher-education institutions to foster meaningful behavioral change and contribute to climate-mitigation efforts.
Co-Authors Anis Tatik Maryani ANWAR, DEDY Asnan Rinovian Destria Enjelika Dodi Devitriano Hana Safitri Hutwan Syarifuddin Iwan Maryawan Melya Riniarti Rahmat Fadhilah Rini Nurindarwati Riswanti Rini Sowiyah Sowiyah Sudibyo Sudibyo Wibowo, Yudha Gusti