Claim Missing Document
Check
Articles

Found 3 Documents
Search

Development and Optimization of Polyethersulfone-Zeolite Mix Matrix Membrane Using Rice Husk Ash for Cadmium Removal in Landfill Leachate Riana, Ulfa; Saiful*, Saiful; Ramli, Muliadi; Rashidi Abdull Manap, Mohd; Umam, Rofiqul
Jurnal IPA & Pembelajaran IPA Vol 9, No 1 (2025): MARCH 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i1.42605

Abstract

Increasing the volume of waste at the final disposal site will contribute to environmental pollution due to the seepage of leachate resulting from the waste decomposition process. Leachate is dangerous and toxic because it contains bacteria, organics or inorganic compounds, and heavy metals like cadmium (Cd). Therefore, methods for reducing Cd levels continue to be developed using a mixed matrix membrane. This research used the silica content from rice husk ash as a precursor for zeolite synthesis. The zeolite is then used as a filler to make politersufon-zeolite mixed matrix membrane (PES-zeolite MMM), which is applied to reduce Cd levels in leachate. The synthesized zeolite is a white solid that is similar to Na-A zeolite. The resulting PES-zeolite MMM showed better mechanical properties than the pure PES membrane. MMM has a tensile strength of 20.31 kgf/mm2, elongation of 105.5%, degree of expansion of 33.89%, porosity of 22.85%, and flux of 118.52 L/m2 hours. The optimum performance of PES-zeolite MMM in adsorption of Cd ions was obtained at a loading percentage of 40% and 30 minutes is the best contact period. The adsorption capacity of Cd ions is 2.27 mg/g. The adsorption isotherm model follows the Langmuir isotherm model with a correlation coefficient (R2) of 0.9152 and Qm of 3.35 mg/g. PES-zeolite MMM 40% can be regenerated using NaCl and HCl solutions, with the maximum adsorption capacity for each solution being 1.99 mg/g and 1.75 mg/g. Applying PES-zeolite MMM in leachate samples reduced Cd and Hg ions levels and several other leachate parameters
MEDIA PEMBELAJARAN DALAM LANTUNAN AYAT SUCI AL-QUR’AN DENGAN PEMBAHASAN SURAH MAKKIYAH (SURAT PENDEK) PADA SD IT AL-MUTHMAINNAH : Learning Media;Tahfidz Qur'an;SD IT;Adobe Flash CS 5.  Surya, Junaidi; Adriana, Windy; Riana, Ulfa
JURNAL AKADEMIKA Vol 15 No 1 (2022): Jurnal Akademika
Publisher : LP2M Universitas Nurdin Hamzah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53564/akademika.v15i1.844

Abstract

Learning Tahfidz Qur'an in SD IT Al-Muthmainnah Jambi City has not been able to hold learning tahfidz / memorize Al-Qur'an effectively because the system used is not optimal. besides students get the material tahfidz, students are also given tajwid material. The material given is Al-Qur'an juz 30. Tahfidz Qur'an method of learning in SD IT Al-Muthmainnah Jambi City using a manual method. The given material is an optional rote and memorization. Memorization must be determined by the teacher Tahfidz Qur'an of each class. And the rote choice is memorization that has been achieved by each student. For that the authors make a computerized system design Learning Media using the application adobe flash cs 5 on SD IT Al-Muthmainnah Jambi City which aims to assist the school in providing materials in a more interesting way and make it easier for students to understand the lesson.
PENGARUH PENGGUNAAN MEDIA PEMBELAJARAN BERBASIS CANVA TERHADAP MOTIVASI DAN MINAT BELAJAR SISWA PADA MATA PELAJARAN MATEMATIKA KELAS IV DI SDN 05 PULAU PUNJUNG sumarni, carli; riana, ulfa; suci, arleni setia
Jurnal Dharma PGSD Vol 3 No 1 (2025): Juni 2025
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Dharmas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk meningkatkan minat dan motivasi belajar siswa serta memudahkan guru dalam menjelaskan materi pembelajaran melalui penggunaan media pembelajaran berbasis canva dikelas IV SDN 05 Pulau Punjung terutama pada mata pemlajaran Matematika. Dalam penelitian ini metode yang digunakan yaitu metode kualitatif, dengan menggunakan teknik pengumpulan data berupa observasi, wawancara dan dokumentasi. Dari hasil wawancara yang telah dilakukan, peneliti menemukan berbagai permasalahan antara lain seperti kurangnya motivasi dan minat belajar siswa, kemudian masih ada siswa yang tidak serius dan tidak memperhatikan guru dalam mengikuti pembelajaran, dan juga kurangnya penggunaan media pembelajaran oleh guru. Temuan-temuan ini menunjukkan perlunya inovasi dalam pembelajaran, salah satunya melalui penggunaan media berbasis teknologi seperti Canva untuk membuat suasana belajar yang lebih menarik, kreatif dan interaktif.