| Ammonium nitrogen removal from urea fertilizer plant wastewater via struvite crystal production I Machdar, SD Depari, R Ulfa, S Muhammad, AB Hisbullah, W Safrul IOP conference series: materials science and engineering 358 (1), 012026, 2018 | 13 | 2018 |
| Optimization of struvite batch crystallization reactor for recovery process from urea fertilizer plant wastewater R Ulfa, I Machdar, S Suhendrayatna, Y Yunardi Proceedings of the 2nd International Conference on Experimental and …, 2021 | 4 | 2021 |
| Sintesis Plastik Biodegradable Dari Pati Ubi Jalar Dengan Variasi Penambahan Plasticizer Gliserol R Rafika, M Masrullita, R Dewi, Z Zulnazri, ZA Nasrul, R Ulfa Chemical Engineering Journal Storage (CEJS) 3 (1), 42-51, 2023 | 3 | 2023 |
| Pembuatan Sabun Mandi Padat dengan Memanfaatkan Minyak Jelantah untuk Meningkatkan Ekonomi Masyarakat di Desa Paloh Lada Kecamatan Dewantara Kabupaten Aceh Utara S Bahri, I Kamar, Z Ginting, F Faisal, R Ulfa, M Absa, WU Fibarzi Jurnal Malikussaleh Mengabdi 3 (1), 61-70, 2024 | 1 | 2024 |
| Pembuatan Saus Cabai Menggunakan Bahan Pengawet Alami Kitosan R Jannah, S Suryati, M Masrullita, S Sulhatun, I Ishak, R Ulfa Chemical Engineering Journal Storage (CEJS) 3 (1), 75-85, 2023 | 1 | 2023 |
| Residence Time Distribution Study in Laboratory Scale Struvite Crystallization Reactor with Online Conductivity Measurement R Ulfa, I Machdar, Y Yunardi, W Rinaldi, J Jauharlina IOP conference series: materials science and engineering 845 (1), 012003, 2020 | 1 | 2020 |
| EFEKTIVITAS PENGARUH EKSTRAK BIJI KOPI SEBAGAI INHIBITOR TERHADAP LAJU KOROSI PADA BAJA ST-37 DALAM MEDIA KOROSIF HCl 0, 5 N Y Nadrakhilla, I Ishak, L Hakim, M Meriatna, R Ulfa Chemical Engineering Journal Storage (CEJS) 4 (5), 694-705, 2024 | | 2024 |
| ADSORPSI RHODAMIN B MENGGUNAKAN ADSORBEN KARBON AKTIF DARI DAUN KETAPANG (TERMINALIA CATAPPA D Frandica, M Masrullita, R Ulfa, S Suryati, S Sulhatun, N Nurmalita Chemical Engineering Journal Storage (CEJS) 4 (3), 423-432, 2024 | | 2024 |
| PEMODELAN PROSES PRODUKSI BIODIESEL MENGGUNAKAN APLIKASI HYSYS T Ulfa, ZA Nasrul, WU Fibarzi, R Nurlaila, R Ulfa, L Maulinda Chemical Engineering Journal Storage (CEJS) 4 (2), 220-228, 2024 | | 2024 |
| PENGOLAHAN AMMONIUM NITROGEN DARI LIMBAH CAIR INDUSTRI PUPUK UREA DAN BITTERN SEBAGAI PEMBENTUK PUPUK STRUVITE R Ulfa, F Iqbal Kamar, MN Rizki Jurnal Teknologi Kimia Unimal 12 (2), 319-328, 2023 | | 2023 |
| APLIKASI PID LEVEL CONTROL PADA THREE PHASE SEPARATOR (221-D9002) PT PERTAMINA EP CEPU DENGAN MENGGUNAKAN HYSYS INTERCAFE MATLAB M Razin, ZA Nasrul, M Muhammad, L Hakim, R Mulyawan, R Ulfa Chemical Engineering Journal Storage (CEJS) 3 (2), 174-186, 2023 | | 2023 |
| Socialization and Training on Making Dish Soap as a Business Opportunity in Gampong Uteun Geulinggang, North Aceh WU Fibarzi, R Ulfa, R Nuralaila, I Ibrahim, Z Ginting International Journal for Education and Community Service 2 (1), 12-17, 2023 | | 2023 |
| Ekstraksi Minyak Biji Ketapang sebagai Bahan Baku Biodiesel Y Aulia, M Meriatna, M Masrullita, N Sylvia, A Muarif, R Ulfa Chemical Engineering Journal Storage (CEJS) 2 (5), 117-128, 2023 | | 2023 |
| Permodelan Aplikasi Kontrol PID-Temperatur Kontrol Pada Desuperheater (Bh-1074) Pada PT–Pupuk Iskandar Muda Dengan Menggunakan Metode Response Surface Methodology M Ramazela, ZA Nasrul, F Muhar, A Azhari, N Sylvia, F Hasfita, R Ulfa, ... Chemical Engineering Journal Storage (CEJS) 2 (4), 111-120, 2022 | | 2022 |
| Influence of Ammonia Concentration on Struvite Production and Ammonia Removal Efficiency in Continuous Flow Crystallizer Reactor R Ulfa, I Machdar, Y Yunardi, S Suhendrayatna Journal of Ecological Engineering 25 (12), 0 | | |
| Influence of Ammonia Concentration on Struvite Production and Ammonia Removal Efficiency in Continuous Flow Crystallizer Reactor I Machdar, R Ulfa, Y Yunardi, S Suhendrayatna Journal of Ecological Engineering, 0 | | |
