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All Journal APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Journal of Degraded and Mining Lands Management Jurnal Chemurgy JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Sosial dan Teknologi Baselang: Jurnal Ilmu Pertanian, Peternakan, Perikanan dan Lingkungan Dinamika Lingkungan Indonesia Journal Transformation of Mandalika Journal of Comprehensive Science MINERAL Nusantara Civil Engineering Journal Jurnal Inovasi Global JURNAL TEKNOLOGI MINERAL FT UNMUL ANDIL Mulawarman Journal of Community Engagement Journal of Media, Sciences and Education
Harjuni Hasan
Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Mulawarman
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : Jurnal Chemurgy

 1 
DECREASE LEVELS OF IRON (Fe) AND MANGANESE (Mn) IN ACID MINING WATER USING ACTIVE CARBON OF EGG SHELL Sandri Tandi Rapang; Shalaho Dina Devy; Windhu Nugroho; Harjuni Hasan; Revia Oktaviani; Tommy Trides
Jurnal Chemurgy Vol 6, No 2 (2022): Jurnal Chemurgy-Desember 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i2.9290

Abstract

Acid mine drainage is acidic water that arises as a result of mining activities. Acidic water has a high acidity, which is often characterized by a low pH and contains high levels of heavy metals Fe and Mn. The purpose of this study was to determine the effect of activated carbon on the adsorption process and the effect of mass of activated carbon on eggshells. The method used in this research is the adsorption method using activated carbon of eggshell which is physically and chemically activated. This study used a mass variation of 5, 10, 15 and 20 grams with a contact time of 30 minutes and an adsorbent size of 200 mesh. The parameters studied were heavy metals iron (Fe) and manganese (Mn). The initial concentration of Fe acid mine waste was 29.179 mg/L, and Mn was 7.9692 mg/L. The results showed that the mass of activated carbon had an effect on decreasing the levels of Fe and Mn metals. On physical activation the average decrease in Fe metal was 99.50% and Mn metal was 53.21%, while on chemical activation the average decrease in Fe metal was 97.72% and Mn metal was 97.97%.Keywords: Acid mine water, Fe, Mn, Activated carbon, egg shell
THE EFFECT OF COAL MINING ACTIVITIES ON HYDROLOGICAL PARAMETER CHANGE Hasan, Harjuni; Sarwono, Edhi
Jurnal Chemurgy Vol 8, No 1 (2024): Jurnal Chemurgy-Juni 2024
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v8i1.14797

Abstract

Mining is a conventional activity that alters the natural landscape and causes hydrological parameter changes and environmental disruptions, such as hampered vegetation growth due to water table subsidence, damaged productive land that affects the river flow, water pollution, deforestation, and erosion. Land clearing for coal mining activity potentially damages the soil layer structure, due to the loss of ground cover vegetation, so hydrological parameter changes, including an 11.79% (50.55 mm) decreased base flow, 40.35% (273.73 mm) increased direct runoff, 21.92% (250.30 mm) increased surface runoff, an 15.73% (76.21 mm) decreased infiltration, 11.03 % (122.52 mm) increased potential evapotranspiration, causing fluctuating river debit. Every 10 Ha of land clearing for mining activities related to 51.46% (291.36 mm) increased runoff. Meanwhile, the postmining activities, including reclamation and vegetation, could only decrease the baseflow by 6.95% (5.95 mm) while increasing the direct runoff, surface runoff, infiltration, and potential evapotranspiration by 9.36% (89.11 mm), 11.19% (148.20 mm), 3.81% (15.56 mm), and 1.73% (21.34 mm), respectively. Furthermore, every 10 Ha of reclamation area is related to an 47.22% (264.62 mm) decrease in runoff.
Co-Authors Adeliana Khairunisa, Aji Agus Winarno Agus Winarno Agus Winarno Agus Winarno, Agus Aipassa, Marlon Ivanhoe Albertus Juvensius Pontus Alfiyanda, Ahmad Angraeni, Thessa Ardhan Ismail Azzahra, Siti Maghfirah Bandaso, Surya Bidang, Mayleni Devy, Shalaho Dina Dina Devy, Shalaho Dionisyus Fransiskus Sinaga Donal Donal Donal, Donal Edhi Sarwono Gerry Tri Virgin Gina Saptiani Graciella Jacob Hamzah Umar Henny Magdalena Hikmawati Ibrahim Ibrahim Ilham, Akbar Irvantoni Simbolon, Desron Jawatir Pardosi Jumsar A Juvensius Pontus , Albertus Juvensius Pontus, Albertus Kusnanto, Fransiska Angelina Lhita Respati, Lucia Litha Respati, Lucia Lucia Litha Respati Lumban Tobing Bill Rexy M. Rijal, M. Magdalena, Heny Megawati AP Milda Milda Miranda, Virgita Mushawir Mushawir Narius , Nugroho, Windhu Nurfaysa Pontus, Albertus Juvensius Respati, Lucia Litha Revia Oktaviani Rinto Syahreza Pahlevi Saeppudin, Ahmad Sakdillah Sakdillah A Sandri Tandi Rapang Satriana Aulia, Andi Sitepu, Joe Vandame Tommy Trides Tommy Trides Tommy Trides Toni, Toni Trides, Tommy Vandrianus Felix Feto Nuwa Wahyu Garini, Andini Dwi Warman, Neni Windhu Nugroho windhu Wiradhana, Ni Made Ayu Dwi Kartika Yauri Imanuel Tobak Yufita, Zaenul Zainuddin, Zainuddin