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All Journal Phi : Jurnal Pendidikan Fisika dan Terapan IRSYADUNA: Jurnal Kemahasiswaan
Panggabean, Dwi Utami
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Religion Earth & Planetary Sciences Education Engineering Languange, Linguistic, Communication & Media Physics Other

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Pengaruh Waktu Kontak Terhadap Penurunan BOD, COD, Dan Fe Pada Air Sungai Batang Toru Menggunakan Metode Elektrokoagulasi Masthura, Masthura; Husnah, Miftahul; Panggabean, Dwi Utami
Phi: Jurnal Pendidikan Fisika dan Terapan Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v8i2.15956

Abstract

Sungai Batang Toru merupakan sungai yang menunjang kehidupan sebagian besar masyarakat Batang Toru. Akan tetapi, dampak dari olahan air limbah pertambangan emas Batang Toru mengakibatkan kualitas dan kuantitas air sungai Batang Toru mengalami penurunan. Penelitian ini tentang bagaimana pengaruh waktu kontak terhadap penurunan kadar BOD, COD, dan Fe menggunakan metode elektrokoagulasi. Adapun variasi waktu yang diberikan, yaitu 15 menit, 30 menit, dan 45 menit. Waktu kontak 15 menit merupakan waktu terbaik dalam penurunan kadar BOD dan COD. Nilai penurunan BOD mencapai 20 mg/L dengan efisiensi 66,67%  dan nilai penurunan COD mencapai 28,8% mg/L dengan efisiensi 54,54%. Untuk Fe waktu kontak 45 menit merupakan waktu terbaik dalam penurunan kadar, dengan nilai penurunan Fe mencapai 1,42 mg/L dengan efisiensi 99,39%.
Analisis Filsafat Pendidikan Terhadap Pembentukan Karakter Siswa Di Sekolah Dasar Panggabean, Dwi Utami; Matondang, Tuti Alawiyah; Nasution, Dedek Oktavia; Tarihoran, Faizah Rahmi; Siregar, Pahri
Irsyaduna: Jurnal Studi Kemahasiswaaan Vol. 6 No. 1 (2026): Sociocultural Islamic Studies
Publisher : LP3M IAI Al Urwatul Wutsqo Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54437/irsyaduna.v6i1.3036

Abstract

Character building in elementary school students is a crucial issue in education, particularly amid the challenges of moral crises and social changes in the technological era. Educational philosophy is viewed as a fundamental foundation for designing values, goals, and educational practices oriented toward character development. This study aims to analyze the role of educational philosophy in shaping the character of elementary school students through a Systematic Literature Review (SLR) approach. This study employs the SLR method, following the PRISMA 2020 guidelines, through a systematic process of identification, selection, and synthesis of the literature. The literature search was conducted using databases such as Google Scholar, SINTA, and reputable international journals within the publication range of 2020–2025. Of the 72 identified articles, 18 met the inclusion criteria and were further analyzed using thematic analysis. The results indicate that educational philosophy, particularly the streams of idealism, pragmatism, and progressivism, plays a significant role in shaping students’ character values such as honesty, responsibility, discipline, cooperation, and empathy. The integration of these three philosophical approaches has been proven to produce more holistic, contextual, and applicable learning processes in students’ daily lives. Furthermore, the implementation of philosophical values in learning enhances students’ moral awareness and positive behavior. Therefore, educational philosophy has a strategic role as a conceptual foundation in character building for elementary school students. This study emphasizes the importance of integrating philosophical values into the curriculum, learning strategies, and the role of teachers as role models in instilling character values sustainably.
Co-Authors Masthura, Masthura Matondang, Tuti Alawiyah Miftahul Husnah Nasution, Dedek Oktavia Siregar, Pahri Tarihoran, Faizah Rahmi