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All Journal JOURNAL OF SCIENCE AND SOCIAL RESEARCH Didaktik : Jurnal Ilmiah PGSD STKIP Subang Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA)
Elsa Elperida Pandiangan
Unknown Affiliation
Computer Science & IT Economics, Econometrics & Finance Education Mathematics Social Sciences

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Penguatan Kompetensi Praktis Mahasiswa Pendidikan Biologi melalui Pelatihan Pembuatan Filter Air Sederhana Dimas Ridho; Ratna Sari Dewi; Lenni Khotimah Harahap; Aldo Geo Frengky Saragih; Anggun Maharani; Delima Sianturi; Elsa Elperida Pandiangan; Monalisa Situmorang; Mei Sufi Anisa Sibarani; Wiranda Hasibuan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 3 (2025): Desember : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i3.6849

Abstract

Clean water is a fundamental necessity; however, many regions still struggle to access it due to contamination by suspended particles, organic matter, and harmful microorganisms. This activity aims to strengthen the practical competence of Biology Education students at Universitas Negeri Medan through training in making simple water filters. The training was conducted through demonstrations and simulations using turbid water from the Tembung River as a sample. The filter was constructed from readily available materials such as used plastic bottles, cotton, tissue, sand, small gravel, and palm fiber arranged in layers. The results showed that the filter effectively reduced water turbidity and enhanced students’ skills in clean water treatment technology. The training also encouraged students to develop 21st-century skills such as critical thinking, problem-solving, and collaboration, while preparing them as future educators capable of raising community awareness about the importance of maintaining water quality. Therefore, this training has the potential to be developed as an applicative environmental education model that contributes positively to clean water provision.
UPAYA PENINGKATAN HASIL BELAJAR PESERTA DIDIK MELALUI PENERAPAN MEDIA PERMAINAN WORDWALL MATERI TERMOKIMIA PADA KELAS XI SMA Rina Syadilla; Dinda Syuhada Afriani; Astriana Purba; Elsa Elperida Pandiangan; Monalisa Situmorang; Putri Andini; Marnida Yusfiani
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 2, Juni 2026 Publish
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.13764

Abstract

This study aims to improve students’ learning outcomes in thermochemistry through the implementation of Wordwall-based game learning media using the Teams Games Tournament (TGT) cooperative model. This research employed a Classroom Action Research (CAR) approach conducted in two cycles, each consisting of planning, action, observation, and reflection stages. The subjects of this study were 35 students of class XI-3 at SMA Negeri 10 Medan. The research instruments included learning outcome tests (pre-test and post-test), observation sheets, and student worksheets. Data were analyzed using descriptive quantitative methods with the N-gain test to determine the improvement in students’ learning outcomes. The results showed a significant improvement in learning outcomes from cycle I to cycle II. The percentage of learning completeness increased from 51.4% in cycle I to 94.3% in cycle II. The N-gain analysis also indicated an increase in students’ learning achievement categories. Therefore, it can be concluded that the implementation of Wordwall-based learning media through the TGT model is effective in improving students’ learning outcomes in thermochemistry.
PEMANFAATAN MATERIAL BIOMASSA DAN LIMBAH INDUSTRI SEBAGAI ADSORBEN RAMAH LINGKUNGAN UNTUK PENURUNAN KADAR ION CD(II) DAN ZN(II) DALAM LIMBAH CAIR Iis Siti Jahro; Aulya Nurfaza Br. Tarigan; Elsa Elperida Pandiangan; Regina Tesalonika Silaban; Theresya Yolanda Kembaren; Vanessa Putri Rizky Simanullang
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 8 No. 4 (2025): November 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i4.4939

Abstract

Abstract: This study aims to evaluate the effectiveness of utilizing biomass and industrial waste materials as environmentally friendly adsorbents in reducing the levels of heavy metal ions Cd(II) and Zn(II) in industrial wastewater. The research sample was a synthetic waste solution with a metal concentration of 10–100 ppm as a model population. The sampling technique used was purposive sampling on four types of adsorbents, namely SCOBY, EDTA-activated teak wood powder, modified fly ash, and iron-magnesium waste. Data were collected through laboratory experiments with metal content measurements using Atomic Absorption Spectroscopy (AAS). Data analysis included Langmuir and Freundlich isotherm methods, as well as pseudo-first and second-order adsorption kinetics models to understand the adsorption mechanism. The results showed that ironmagnesium waste was able to reduce Cd(II) and Zn(II) levels by more than 99%, followed by fly ash and SCOBY biomass with significant efficiency. This study demonstrates the great potential of sustainable adsorbent materials that support the principles of a circular economy and more environmentally friendly waste management solutions. It is recommended to develop industrial scale applications to support the Sustainable Development Goals in the field of providing clean water and proper sanitation.Keyword: Environmentally Friendly Adsorbent, Biomass, Industrial Waste, Heavy Metal Ions, Cd(II), Zn(II) Abstrak: Penelitian ini bertujuan untuk mengevaluasi efektivitas pemanfaatan material biomassa dan limbah industri sebagai adsorben ramah lingkungan dalam menurunkan kadar ion logam berat Cd(II) dan Zn(II) dalam limbah cair industri. Sampel penelitian berupa larutan limbah sintetik dengan konsentrasi logam 10–100 ppm sebagai populasi model. Teknik sampling yang digunakan adalah purposive sampling pada empat jenis adsorben, yaitu SCOBY, serbuk kayu jati teraktivasi EDTA, fly ash termodifikasi, dan limbah besi-magnesium. Data dikumpulkan melalui eksperimen laboratorium dengan pengukuran kadar logam menggunakan Atomic Absorption Spectroscopy (AAS). Analisis data meliputi metode isoterm Langmuir dan Freundlich, serta model kinetika adsorpsi pseudo-orde satu dan dua untuk memahami mekanisme penyerapan. Hasil menunjukkan bahwa limbah besi-magnesium mampu menurunkan kadar Cd(II) dan Zn(II) hingga lebih dari 99%, diikuti oleh fly ash dan biomassa SCOBY dengan efisiensi yang signifikan. Penelitian ini menunjukkan potensi besar material adsorben berkelanjutan yang mendukung prinsip ekonomi sirkular dan solusi pengelolaan limbah yang lebih ramah lingkungan. Disarankan pengembangan skala aplikasi industri guna mendukung tujuan Sustainable Development Goals pada bidang penyediaan air bersih dan sanitasi layak.Kata kunci: Adsorben Ramah Lingkungan, Biomassa, Limbah Industri, Ion Logam Berat, Cd(II), Zn(II)
Co-Authors Aldo Geo Frengky Saragih Anggun Maharani Astriana Purba Aulya Nurfaza Br. Tarigan Delima Sianturi Dimas Ridho Dinda Syuhada Afriani Harahap, Lenni Khotimah Iis Siti Jahro Marnida Yusfiani Mei Sufi Anisa Sibarani Monalisa Situmorang Putri Andini Ratna Sari Dewi Regina Tesalonika Silaban Rina Syadilla Theresya Yolanda Kembaren Vanessa Putri Rizky Simanullang Wiranda Hasibuan