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All Journal Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Serambi Saintia : Jurnal Sains dan Aplikasi Jurnal Tika Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Jurnal Ilmiah Mahasiswa Kimia Jurnal Pengabdian Bakti Akademisi
Ratu Fazlia Inda Rahmayani
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Immunology & microbiology Nursing Public Health Social Sciences Other

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Efektivitas Penggunaan Arang Aktif Pelepah Kelapa Sawit (Elaeis guineensis) Terhadap Penurunan Kadar Logam Kadmium (Cd) Dalam Air Sharah, Siti; Adlim, Adlim; Rahmayani, Ratu Fazlia Inda
Jurnal Ilmiah Mahasiswa Pendidikan Kimia Vol 9, No 1 (2024): JIMPK Januari-Juni 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.82415/jimpk.v9i1.18162

Abstract

Penelitian tentang Efektivitas Penggunaan Arang Aktif Pelepah Kelapa Sawit Terhadap Penurunan Kadar Logam Kadmium telah dilakukan. Penelitian ini bertujuan untuk menguji kualitas arang aktif sesuai SNI 06-3730-1995 dan penyerapan terhadap logam kadmium. Limbah pelepah kelapa sawit diperoleh dari kebun kelapa sawit masyarakat di Kota Langsa. Sampel diaktivasi menggunakan NaOH 10% dan dilakukan pirolisis. Karakterisasi arang aktif diuji berdasarkan persyaratan SNI 06-3730-1995.Hasil penelitian karakterisasi arang aktif meliputi uji kadar air 5,8% , kadar abu 9,9% , kadar zat mudah menguap 18,4% , kadar karbon 65,9% dan daya serap methylene blue270,264 mg/gsudah sesuai SNI.Hasil penelitian menunjukkan bahwa jumlah yield yang didapatkan sebesar 42%. Penentuan waktu kontak optimum arang aktif dilakukan dengan 5 variasi waktu yaitu, 0, 15, 30, 60 dan 90 menit.Waktu kontak optimum arang aktif untuk menyerap logam kadmium adalah 30 menit dengan absorbansi0,3634 A. Kapasitas adsorpsi arang aktif pelepah kelapa sawit terhadap larutan kadmium adalah 0,134 mg/g. Efisiensi penyerapan tertinggi yaitu 89,4%. Arang aktif dari pelepah kelapa sawit sudah layak digunakan sebagai adsorben karena dapat menyerap logam kadmium dan memenuhi SNI.
Eco-Enzyme-Based Dishwashing Soap Production as a Step Toward Achieving a Green Pesantren Rahmayani, Ratu Fazlia Inda; Sulastri, Sulastri; Ramli, Ichwana; Warlaini, Ana
Jurnal Pengabdian Bakti Akademisi Vol 2, No 2 (2025): Jurnal Pengabdian Bakti Akademisi
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpba.v2i2.45685

Abstract

The Integrated Islamic Boarding School Al Falah Abu Lam U produces approximately 30 kg of organic waste daily, primarily from dormitory activities. This waste has not yet been optimally managed by the pesantren. Given its composition, the waste has significant potential to be converted into eco-enzyme (EE), which can be utilized as fertilizer and dishwashing soap for the pesantren's needs.This community service initiative applies science and technology, particularly in the field of biotechnology transformation during the fermentation of fruit peels into EE, and organic chemical transformation in the process of converting EE into dishwashing soap. The program has successfully trained male and female students (santriwan and santriwati) as well as female teachers (ustadzah) in sorting organic waste and processing it into EE. Approximately 100 kg of fruit peels have been fermented into EE, and participants have also been trained in the production of dishwashing soap using the resulting EE.
DEVELOPMENT OF NEARPOD LEARNING MEDIA FOR THE CONCEPT OF REACTION RATES COMPREHENSION Sarmita, Sarmita; Rahmayani, Ratu Fazlia Inda; Syahrial, Syahrial
Chimica Didactica Acta Vol 13, No 1: June 2025
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v13i1.43967

Abstract

The integration of Android technology and the internet into education in Indonesia has introduced innovative approaches to the learning process, enhanced by digital media. One notable example is the Nearpod application. This study aims to develop and evaluate the feasibility of Nearpod as a learning medium for reaction rate topics and to assess student responses to the application. The research follows the Research and Development (RD) methodology, employing the ADDIE model, which includes five stages: Analyze, Design, Develop, Implement, and Evaluate. The study was conducted in the Chemistry Education Department, Syiah Kuala University, and involved 60 students from the 2022 cohort who had completed the Basic Chemistry 2 course. Research instruments included a needs analysis questionnaire, a media feasibility assessment validated by experts, student response sheets, and System Usability Scale (SUS) questionnaires. The findings indicated that the Nearpod learning media achieved a validity score of 0.91, categorized as highly valid. The reliability assessment showed a reliability rate of 91%, indicating that the media is trustworthy. Student responses to Nearpod were overwhelmingly positive, with a satisfaction rate of 90%. The System Usability Scale (SUS) evaluation yielded a score of 71, placing the application in the "good" usability category. Based on these results, it can be concluded that the Nearpod application is a viable and effective learning medium for teaching reaction rate concept.
Co-Authors . Sulastri Abdul Mujala Adlim Adlim Andi Ulfa Tenri Pada Elisa Elisa Fitraliana, Fitraliana Hafnati Rahmatan Haya, Yulia Fatihul Latifah Hanum Luthfia Hanum* M. Hasan Muhammad Hasan Noviyanti Noviyanti Ramli, Ichwana Reza Resita Vonna Rusman, Rusman Sarmita, Sarmita Sharah, Siti Sulastri Sulastri SYAHRIAL SYAHRIAL Tuddin, Hidayat Warlaini, Ana Yuliza Laini Yusrizal Yusrizal Zarlaida Fitri