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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Kasta: Jurnal Ilmu Sosial, Agama, Budaya dan Terapan
Sudarno
Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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PERBANDINGAN HASIL PENGOMPOSAN MENGGUNAKAN METODE BATA TERAWANG DAN METODE OPEN WINDROW Ilham; Sri Sumiyati; Sudarno
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.8184

Abstract

Composting is a waste management process that converts organic material into humus that can be reused. Composting can be applied using several methods such as the open windrow method, this method is a way of making compost that will get sufficient aeration so that it will help the compost maturity process more quickly. The aim of this research is to compare the results of composting using the open brick method and open windrow based on chemical parameters. During the composting process, a different bioactivator was added to each compost, using two bioactivators, namely MoL and M-Bio, and periodic checks were carried out every three days during the six weeks of composting. Based on the comparison results, the C, P content and C/N ratio in the two methods produced content values ​​that were not significantly different, however, in the overlay brick method, the control compost was superior in terms of P content and C/N ratio. Meanwhile, the open windrow method has a consistent increase in C, P content and C/N ratio.
Elektrokoagulasi Kontinu (CEC) untuk Tujuan Pembangunan Berkelanjutan Vera Cerelia Yolanda; Sudarno; Nurandani Hardyanti; Bimastyaji Surya Ramadan
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.15369

Abstract

Wastewater treatment requires effective technologies for pollutant removal and sustainable water management. This study aimed to map the development of Continuous Electrocoagulation (CEC) research, identify research gaps and emerging themes, and synthesize operational and implementation issues. A Systematic Literature Network Analysis (SLNA) integrating Bibliometric Analysis (BA) and Qualitative Content Analysis (QCA) was applied to 99 Scopus-indexed journal articles published between 2019 and 2024. BA examined publication trends, collaboration networks, and research hotspots, while QCA synthesized evidence on Sustainable Development Goals (SDGs), operational factors, and implementation challenges. Publication output increased from 7 articles in 2019 to a peak of 22 in 2022, followed by 20 in 2023 and 14 in 2024. Thematic analysis indicated increasing attention to continuous operation, reactor configuration, pollutant removal, and energy efficiency. QCA showed that CEC research repeatedly examines electrode material, current density, pH, electrode distance, flow rate, electrolysis time, conductivity, temperature, supporting electrolytes, and hydraulic retention time. Key implementation challenges include electrode passivation, energy and electrode consumption, sludge management, effluent-quality control, and limited reactor standardization and scale-up evidence. Overall, CEC shows potential to support SDGs, while future research should prioritize multivariable optimization, pilot-scale validation, and sustainability assessment.
Optimization of Recycled Water Utilization from Liquid Waste Treatment as a Supply for Cooling Towers in Hospitals Fc Dion Kurniawan Graviyanto; Sudarno; Ganjar Samudro; Bimastyaji Surya Ramadan
KASTA : Jurnal Ilmu Sosial, Agama, Budaya dan Terapan Vol. 6 No. 4 (2026): October
Publisher : Lembaga Bale Literasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58218/kasta.v6i4.4420

Abstract

The increasing demand for water resources and the limitations of freshwater availability have encouraged the development of sustainable water reuse strategies, particularly in high-consumption facilities such as hospitals. Reclaimed water from wastewater treatment plants (WWTPs) has potential as an alternative water source for cooling tower systems; however, challenges related to water quality, biological risks, and operational reliability remain. This study aims to identify global research trends, technological developments, and optimisation strategies for reclaimed water utilisation in hospital cooling tower applications. A systematic literature review combined with bibliometric analysis and systematic literature network analysis (SLNA) was conducted using Scopus database publications from 2020–2025. Data analysis was performed using VOSviewer and Orange Data Mining through keyword mapping, co-occurrence analysis, word cloud visualisation, and Latent Dirichlet Allocation (LDA) topic modelling. The results revealed that reclaimed water research is dominated by environmental science and engineering fields, with major themes focusing on wastewater treatment, membrane technology, water reuse, and sustainability. Advanced treatment systems, including membrane bioreactor, ultrafiltration, reverse osmosis, and disinfection processes, were identified as key approaches for improving reclaimed water quality. This study highlights that successful implementation of reclaimed water systems requires integrated consideration of technological, environmental, regulatory, and public health aspects to support sustainable hospital water management.
Co-Authors Fc Dion Kurniawan Graviyanto Ganjar Samudro ILHAM Nurandani Hardyanti Ramadan, Bimastyaji Surya Sri Sumiyati Vera Cerelia Yolanda