Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jambura Journal of Educational Chemistry Serambi Engineering
Umadji, Nur Inda R.
Unknown Affiliation
Chemistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pemanfaatan Fly Ash dan Bottom Ash Sebagai Adsroben dalam Menurunkan Parameter COD dan BOD pada Limbah Cair Tahu Badu, Risti Ristianingsih; Kunusa, Wiwin Rewini; Umadji, Nur Inda R.; Paramata, Mulyani Zahra; A, Anisyah A. MS.
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Abstract

The demand for clean water in Indonesia has been steadily increasing, but water pollution from industrial wastewater, especially from tofu production, remains a significant challenge. This study investigates the potential of fly ash and bottom ash as adsorbents to reduce chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in tofu wastewater. Laboratory experiments were conducted with different adsorbent doses of 25, 50, and 75 grams. The adsorption process involved stirring the samples for 60 minutes, followed by a sedimentation period of 120 minutes. The results showed that fly ash was more effective than bottom ash in reducing COD and BOD levels. At a dose of 75 grams, Fly Ash achieved a 72% reduction in COD (from 0.8672 mg/L to 0.2438 mg/L) while Bottom Ash resulted in a 68% reduction with a final COD concentration of 0.2735 mg/L. A similar pattern was observed in the reduction of BOD. These results indicate that both fly ash and bottom ash can be effective and environmentally friendly alternatives for the treatment of tofu wastewater.
Analisis Kualitas Air Sungai Berbasis Praktikum sebagai Bentuk Penerapan Project Based Learning Kunusa, Wiwin Rewini; Utina, Ramli; Yusuf, Frida Maryati; Karim, Cecy Rahma; Umadji, Nur Inda R.
Jambura Journal of Educational Chemistry Vol 5, No 1 (2023): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jjec.v5i1.12726

Abstract

Tujuan dari penelitian ini untuk meningkatkan ketrampilan proses sains mahasiswa semester VII yang sedang menempuh mata kuliah Kimia Analitik III. Kemampuan mahasiswa dalam melakukan analisis tentang permasalahan lingkungan masih rendah. Penerapan Project Based Learning ini dengan melibatkan mahasiswa secara langsung di luar kelas dalam mengembangkan sejumlah keterampilan proses sains untuk menganalisis kualitas air sungai di Lokasi Wisata Desa Meranti Kecamatan Tapa Kabupaten BoneBolango. Kualitas air sungai Desa Meranti ditentukan berdasarkan parameter warna, rasa, bau, pH, dan analisis logam berat. Pembelajaran dilakukan secara berkelompok dengan tahapan 1) menentukan proyek, 2) merancang langkah-langkah penyelesaian proyek, 3) menyusun jadwal pelaksanaan proyek, 4) penyelesaian proyek, 5) menyusun laporan dan publikasi hasil proyek, dan 6) evaluasi proses dan hasil proyek. Rancangan penelitian yang digunakan adalah Pre Experimental Design. Indikator keterampilan proses sains yang diteliti meliputi: 1) menyajikan data dalam bentuk grafik, 2) mengumpulkan dan mengolah data, 3) merancang penelitian dan 4) melaksanakan eksperimen 5) membuat laporan akhir.
Co-Authors A, Anisyah A. MS. Frida Maryati Yusuf Karim, Cecy Rahma Mulyani Zahra Paramata Ramli Utina Risti Ristianingsih Badu Wiwin Rewini Kunusa