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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Journal of Natural Sciences and Mathematics Research CHEESA: Chemical Engineering Research Articles Walisongo Journal of Chemistry Jurnal Energi Baru dan Terbarukan Jurnal Rekayasa Proses Digital Learning, Social Science, and Life-course Studies
Ramandani, Adityas Agung
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences

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Advanced oxidation processes technology using the Fenton method in Bakung landfill leachate treatment Teguh, Dedi; Cendekia, Devy; Wulandari, Yeni Ria; Putri, Cynthia Eka; Ramandani, Adityas Agung
Journal of Natural Sciences and Mathematics Research Vol. 10 No. 2 (2024): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.v10i2.20987

Abstract

The primary issue at the Bakung final processing location was the high organic and inorganic material concentration. Toxicity, high chemical oxygen demand (COD), a black hue, and an unpleasant smell can usually identify landfill leachate; it can be hazardous if spilled directly into a body of water. Consequently, the implementation of an efficient leachate treatment was necessary. One use of this cutting-edge oxidation process technology consists of the Fenton method for treating leachate. The goals of this study involve implementing the Fenton technique to leachate treatment and ascertaining the impact of reaction time (30, 60, 90, or 120 min) and Fenton molar ratio (1:150, 1:200, or 1:250) on color degradation and chemical oxygen demand (COD). A Fenton molar ratio of 1:150 and a 120-min reaction period were ideal, resulting in maximum color and COD degradation percentages of 91.4% and 92.4%, respectively. The study's findings demonstrate how well the Fenton approach works to reduce COD and color in leachate while also meeting leachate water quality requirements for enterprises and/or ultimate waste processing operations.
Enhancing Social Studies Achievement through the Make a Match Cooperative Model: The Moderating Role of Student Motivation Putri, Herma Kurnia; Risdianto, Eko; Ramandani, Adityas Agung
Digital Learning, Social Science, and Life-course Studies Vol. 1 No. 1 (2025): June 2025
Publisher : WISE Pendidikan Indonesia

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Abstract

This study investigates the effectiveness of the Make a Match cooperative learning model in enhancing social studies achievement among seventh-grade students, while considering student motivation as a moderating variable. Employing a quasi-experimental design with a pretest-posttest control group, the study involved 84 students from Al-Azhar 3 Junior High School in Bandar Lampung, Indonesia, who were divided into experimental and control groups using cluster random sampling. Data were collected through a validated achievement test and a motivation questionnaire, then analyzed using ANOVA and independent samples t-tests. The findings indicate that the Make a Match model significantly improves student learning outcomes compared to traditional methods, particularly for students with high motivation. Conversely, students with low motivation benefited more from the Jigsaw model, highlighting a critical interaction effect between instructional strategy and learner characteristics. These results underscore the importance of aligning pedagogical approaches with students’ motivational profiles to optimize academic achievement. The study contributes to the literature on differentiated instruction and cooperative learning by emphasizing the nuanced interplay between teaching methods and student motivation.
Co-Authors Afifah, Dian Ayu Afifah, Meita Agustina, Tika Aji, Salomo Pranata Alvita, Livia Rhea Arief, Febrina Cendekia, Devy Dahla, Astryd Viandila Didik, Nurjan Efendi, Dimas Amirul Mukminin Nur Eko Risdianto Elsyana, Vida Fadian Farisan Silmi Herlambang, M. Julian Indah Maulidia, Indah Oktaf Rina Prihatini, Chindy Aulia Purnani, Mawar Siti Putri, Cynthia Eka Putri, Herma Kurnia Ricky Fernando Shintawati shintawati, shintawati Siti Purnani, Mawar Sudibyo Sudibyo Sukma, Vinda Avri Sunarsi, Sunarsi Syamsuri, Iyappateya Gelegar Dirgantara Teguh, Dedi Wulandari, Yeni Ria