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All Journal Jurnal Pertambangan Rekayasa Mesin Sinergi Jurnal Geomine Indonesian Mining Journal Prosiding Temu Profesi Tahunan PERHAPI Abdimas Universal INDONESIAN MINING PROFESSIONALS JOURNAL Journal of Multidisciplinary Applied Natural Science INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal AKAL: Abdimas dan Kearifan Lokal Indonesian Mining and Energy Journal JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Geominerba International Journal of Innovation in Mechanical Engineering and Advanced Materials Jurnal Migasian Jurnal Pengabdian Masyarakat Indonesia (JPMI) Indonesian Mining Journal
Irfan Marwanza
Universitas Trisakti
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Journal : Jurnal Geomine

 1 
Pengaruh Fraksi Ukuran dan pH Pada Flotasi Mineral Sulfida Subandrio Subandrio; Christin Palit; Irfan Marwanza; Emmy Fatmi B. I.; Muhammad Idris Juradi
Jurnal Geomine Vol 10, No 1 (2022): Edisi April 2022
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jg.v10i4.978

Abstract

The ore used in this study is galena ore (PbS) which is a type of sulfide mineral. In this experiment, several variations of important variables were carried out. The variables that were varied namely: feed size fraction with a range of 140 - 325 mesh (105 - 44 microns), pulp pH between 7 – 11, and retention time between 3 - 8 minutes. The experimental results show that the smaller the feed size, the Pb content (%) tends to increase, For the pH of the pulp, the best Pb content was at pH 9.5. The higher the pH the bubbles formed tended to be stable so that the material was perfectly lifted to the surface. The best flotation time was obtained at 6.5 minutes. Retention time greatly affects the effectiveness of the reagents used in the flotation process. Best on experiments, The best condition is at the size of -200 + 230 mesh, pH of the pulp 9,5 with retention time 6,5 minutes with a Pb content of 27%. 
Analisis Penurunan Konsentrasi Gas Karbon Monoksida (CO) Pada Saluran Ventilasi di Area Belokan Menggunakan Model Fisik Terowongan Skala Laboratorium Ririn Yulianti; Panjaitan Novi Hartami; Edy Jamal Tuheteru; Yuga Maulana; Irfan Marwanza; Sekar Tika Sari
Jurnal Geomine Vol 11, No 1 (2023): April 2023
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jg.v11i1.1270

Abstract

Carbon monoxide (CO) gas is one of the harmful and toxic gases derived from the residue of blasting and incomplete combustion of mining equipment machines in underground mines. CO gas dilution is carried out with the intention of unsafe conditions in the mining area. The purpose of this study was to determine the decrease in CO gas based on the value of the diffusion coefficient and by making a 1:10 scale tunnel model with a 90° turning vent duct flow direction using an elbow according to the actual situation. XC 13 B and XC 13 NRTH in the Cikoneng block, PT Cibaliung Sumberdaya is used as a reference for the tunnel model. The study was carried out with variations in the position of the vent duct to determine the speed of decrease in the CO concentration tested. This study was conducted using secondary and primary data which is expected to get the results of the influence of the concentration of CO gas itself and the influence of vent duct placement on the direction of flow on the decrease in CO gas concentration.
Co-Authors Adhitia, Iit Aditya Saputra Afiat Anugrahadi Afiat Anugrahadi Afiat Anugrahadi Afiat Anugrahadi, Afiat Ahmad Helman Hamdani Alvando Alone, Marcel Samuel Anak Agung Istri Sri Wiadnyani Andriyani Andriyani Andry Prima Ardiansyah Ardiansyah Arinda Ristawati Arkaan, Muhammad Dzaki Aryanto, Reza Azizi, Masagus Ahmad Bani Nugroho Bani Nugroho Bani Nugroho Chairul Nas Chairul Nas Chairul Nas Chairul Nas Christin Palit Dalimunthe, Yusraida Khairani Damarizky, Rico Danu Putra Danu Putra Darren, Franko Sajow Dewi Kumala Salim Djoko Hartanto Emmy Fatmi B. I. Emmy Fatmi Budhya Fadliah Fadliah Faisal Rachman Fitra Yuda, Himmes Gumay, Rhazes Eesha Hadi, Singgih Irianto Trisilo Havidh Pramadika Himmes Fitra Yuda Idris Juradi, Muhammad IIT ADHITIA iputu rama aryawan Ivetta Ivetta Iyan Haryanto Jeremy Gerald Puglisi Kamardi, Muhammad Agus Karim, Razak Karmadi, Muhammad Agus Khuzaimah Arifin Korra Herdyanti, Mixsindo Kurniawati, Riskaviana M Kemal Ghifari M. A. Azizi M. Puspita M. Taufiq Fathaddin, M. Taufiq Maulida, Fajri Mixsindo Korra Herdyanti Mohamad Nur Hariawan Muhammad Agus Kamardi Muhammad K. Ghifari Muhammad Kemal Ghifari Muhammad Napis Fikri Muhammad Rahthin Qinthara Muhammad Taufiq Fathaddin, Muhammad Taufiq Nadya A. Hartanti Nadya A. Hartanti Nas, Chairul Nas, Chairul Nugraheni, Rosmalia Palit, Christin Pandiangan, Violeta Apriani Panjaitan Novi Hartami Patian, Syamidi Permatasari, Claudia Intan Prapansya, Onnie Ridaliani Prasta Kumarana Garnika Purwiyono, Taat Tri Putra, Danu Rahmawan Rahmat, Daffa Ratna Ediati Reza Aryanto Ririn Yulianti Rita Sundari Rita Sundari Rosmalia Nugraheni Rully Naufal Falih Safitri, Diah Utami Sahetapy, Silvia Immanuela Sekar Tika Sari Simon Fides Singgih Irianto Trisilo Hadi Solihin Solihin Subandrio Subandrio Subandrio, Subandrio Suherman Dwi Nuriana Suherman Dwi Nuryana Suliestyah Sumotarto, Untung Sundari, Rita Susanti, Chiesa Artamevia Diva Syamidi Patian Syamidi Patian Taat Tri Purwiyono Theresa Naomi Putri Tri Purwiyono, Taat Tuheteru, Edy Jamal Untung Sumotarto W. Dahani Wahyu Gendam Prakoso Wahyu Gendam Prakoso, Wahyu Gendam Wiwik Dahani Wiwik Dahani Wiwik Dahani Wiwik Dahani Wiwik Dahani wiwik dahani, wiwik Y. Maulana Yansen Barus Yuga Maulana Yulianti, Ririn Ziad S Zulfahmi Zulfahmi