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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) JIIP (Jurnal Ilmiah Ilmu Pendidikan)
Yutia, Nurtanti
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics Other

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Pemanfaatan Karbon Aktif Batang Sagu yang Diaktivasi Menggunakan Microwave sebagai Media Filter pada Penurunan Kadar Besi (Fe), Mangan (Mn) dan Kekeruhan Air Sumur Gali Jamal, Jamiatin; Safitri, Inri; Yutia, Nurtanti
JIIP - Jurnal Ilmiah Ilmu Pendidikan Vol. 5 No. 9 (2022): JIIP (Jurnal Ilmiah Ilmu Pendidikan)
Publisher : STKIP Yapis Dompu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (899.319 KB) | DOI: 10.54371/jiip.v5i9.867

Abstract

Penelitian ini berfokus pada produksi karbon aktif dari batang sagu yang diaktivasi menggunakan microwave dan dikarakterisasi menggunakan AAS untuk melihat hasil penurunan kadar besi (Fe), mangan (Mn) yang dapat digunakan untuk menurunkan kekeruhan. air sumur gali dengan menggunakan metode filtrasi. Hasil analisis kadar besi (Fe) menunjukkan bahwa ukuran sampel adalah 0,841 mm, 0,420 mm, 0,250 mm dan 0,177 mm dengan variasi temperatur 500?C menampilkan data secara berurutan yaitu 1.234 mg/L, 1.189 mg/L, 1.099 mg/L, dan 0.829 mg/L. L, suhu 550?C diperoleh data berurutan yaitu 0,631 mg/L, 0,532 mg/L, 0,495 mg/L, dan 0,360 mg/L serta pada suhu 600?C data diperoleh secara berurutan yaitu 0,441 mg/L, 0,270 mg/L, 0,108 mg/L, dan 0,054 mg/L.Analisis kadar mangan (Mn) menggunakan ukuran sampel yang sama hasil yang diperoleh dapat dilihat pada variasi suhu 500?C menunjukkan data secara berurutan yaitu 0,697 mg/L, 0,674 mg/L, 0,629 mg/L, dan 0,438 mg/L, suhu 550?C menunjukkan Data berurutan 0,573 mg/L, 0,528 mg/L, 0,461 mg/L, dan 0,337 mg/L dan suhu 600?C menampilkan data secara berurutan yaitu 0,382 mg/L 0,225 mg/L, 0,112 mg/L, dan 0,079 mg/L. Analisis kekeruhan air sumur gali tanpa pengolahan diperoleh sebesar 654,28 NTU, dengan menggunakan sampel yang telah diaktivasi pada suhu 500?C menampilkan data secara berurutan yaitu 318,55 NTU, 276,78 NTU, 268,13 NTU dan 3,61 NTU, suhu 550?C. diperoleh data sebesar 284,71 NTU, 168,33 NTU, 4,76 NTU dan 2,78 NTU serta pada temperatur 600?C hasilnya adalah 196,79 NTU, 92,13 NTU, 2,47 NTU dan 1,83 NTU. Berdasarkan hasil yang diperoleh, kekeruhan air sumur gali mengalami penurunan berdasarkan ukuran sampel dan suhu aktivasi yang digunakan.
Development of Electronic Student Worksheets with a Scientific Approach to Static Fluids Material to Improve Critical Thinking Skills of SMAN 9 Merangin Students Yutia, Nurtanti; Yusnaidar; Hasibuan, M. Haris Effendi
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5291

Abstract

Teaching materials in their role as providers of information are really needed by educators and student. The purpose of this research is to develop teaching materials in the form of e-LKPD with a scientific approach to static fluid material to improve critical thinking skills at SMAN 9 Merangin which can be used in the learning process. This development research uses a 4D development model. The test subjects consisted of a small group consisting of 10 people and a large group consisting of 30 people who were students of SMAN 9 Merangin. The instruments used in this research were interviews, questionnaires, pretest-posttest questions, and validation assessment sheets. The data analysis technique used in this research is descriptive research with a quantitative approach. The validation results from material and media experts show that the teaching materials developed are very valid for small group trials. Teacher assessments and student responses to the media are very good. The effectiveness of e-LKPD teaching materials in improving critical thinking skills was carried out by a Paired Sample T-Test with the decision that the hypothesis was accepted and a large group test was carried out to obtain a fairly effective level of effectiveness with an average value of 0.6187 or 61.8696%. It can be concluded that the development of e-LKPD teaching materials with a scientific approach to static fluid material to improve critical thinking skills is feasible and effective for use in the learning process. 6187 or 61.8696%. It can be concluded that the development of e-LKPD teaching materials with a scientific approach to static fluid material to improve critical thinking skills is feasible and effective in the learning process. 6187 or 61.8696%. It can be concluded that the development of e-LKPD teaching materials with a scientific approach to static fluid material to improve critical thinking skills is feasible and effective for use in the learning process.
Co-Authors Jamal, Jamiatin Muhammad Haris Effendi Hasibuan Safitri, Inri Yusnaidar