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Efektivitas Campuran Karbon Aktif Daun Nanas–Batubara dalam Peningkatan pH dan Penurunan Fe, Mn, serta TSS Air Asam Tambang PT Alreksa Bara Mitra
Ayu Ningtias
; Lucia Litha Respati
; Shalaho Dina Devy
; Harjuni Hasan
; Windhu Nugroho
Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Vol 3
, No 6
(2025)
Acid mine drainage (AMD) is characterized by low pH and high concentrations of heavy metals such as iron (Fe) and manganese (Mn) that exceed environmental quality standards, thus requiring effective treatment to prevent environmental pollution. This study aims to evaluate the ability of a mixture of activated carbon derived from pineapple leaves mixed with coal to increase pH and reduce Fe, Mn, and Total Suspended Solids (TSS) levels in acid mine drainage at PT Alreksa Bara Mitra. The process to...
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Pengaruh Karbon Aktif Ampas Tebu (Adsorben) terhadap Air Asam Tambang untuk Mengurangi Kadar Fe, Mn, dan TSS pada Sump PT Alreksa Bara Mitra
Brilliant Mercy Geometri
; Shalaho Dina Devy
; Lucia Litha Respati
; Harjuni Hasan
; Rety Winonazada
Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Vol 3
, No 4
(2025)
Acid mine drainage (AMD) is one of the major environmental problems arising from coal mining activities. AMD is formed through the oxidation of sulfide minerals, resulting in acidic water with high concentrations of dissolved heavy metals. This condition is characterized by elevated levels of Fe, Mn, and total suspended solids (TSS), which, if left untreated, can pollute nearby water bodies, damage aquatic ecosystems, and pose risks to human health. Therefore, effective, eco-friendly, and low-co...
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Studi Hubungan Nilai Uniaxial Compressive Strength dan Nilai Schmidt Hammer Batulempung pada Formasi Balikpapan dan Kampungbaru Daerah Kutai Kartanegara, Provinsi Kalimantan Timur
Amarullah Amarullah
; Albertus Juvensius Pontus
; Shalaho Dina Devy
; Revia Oktaviani
; Tommy Trides
; Rety Winonazada
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Vol 3
, No 3
(2025)
Compressive strength is one of the mechanical properties of rock behavior. This study focuses on the Balikpapan and Kampungbaru Formations located in the Kutai Kartanegara area, East Kalimantan. The Schmidt Hammer testing method was applied due to the lack of previous studies utilizing this tool to evaluate rock hardness in correlation with compressive strength. The research site is situated in the Kutai Kartanegara area, specifically in the districts of Muara Badak, Muara Jawa, and Sanga-Sanga....
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Studi kasus sistem penyaliran tambang batuabara pt bukit baiduri energi kabupaten kutai kartanegara provinsi kalimantan timur: -
Juan, Juan
; Shalaho Dina Devy
; Revia Oktaviani
; Tommy Trides
; Ardhan Ismail
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Vol 3
, No 3
(2025)
The mining system applied by PT Bukit Baiduri Energi is an open pit mining system utilizing the open-pit method. The application of the open-pit method creates a depression that has a high potential to become a catchment area for both surface runoff and groundwater. In the mining pit of PT Bukit Baiduri Energi, there is a sump located at an elevation of -86 meters above sea level (mdpl). The planned mining boundary is at an elevation of -110 mdpl. Therefore, this research aims to determine the a...
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Analisis Perbandingan Optimasi Pit 24 dengan Metode Lerch Grossman 2D terhadap Estimasi dari Software Minescape di PT Indominco Mandiri (IMM), Kabupaten Kutai Timur, Provinsi Kalimantan Timur
Jhony Maxi Harjadi
; Shalaho Dina Devy
; Albertus Juvensius Pontus
; Windhu Nugroho
; Ardhan Ismail
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Vol 3
, No 3
(2025)
An open pit exploitation activity will become less effective and cause production to not run well, resulting in the failure to meet production targets at PT. Indominco Mandiri. Therefore, to achieve production targets and obtain more optimal results, we need to plan the Design Pit Limit. The purpose of this research is to optimize the pit, find the BESR value, and compare the differences between two methods. The Lerch Grossman 2D algorithm method is believed to be able to determine the optimal p...
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Pengaruh Curah Hujan Terhadap Produksi Alat Angkut Batubara PT Bima Nusa Internasional Pit Susubang Jobsite PT Kideco Jaya Agung Kecamatan Muara Komam Kabupaten Paser Provinsi Kalimantan Timur
Nurhidayatullah Am
; Shalaho Dina Devy
; Lucia Litha Respati
; Ardhan Ismail
; Tommy Trides
; Agus Winarno
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Vol 3
, No 3
(2025)
Coal mining in indonesia mostlyuses open pit mining methods. Including coal mines owned by PT Bima Nusa Internasional. Administratively, the research area is located in the muara komam area, batu sopang sub-district, paser district, east kalimantan. Open pit mining is a direct method that is exposed to free air above the surface. This study aims to determine the effect of rainfall on the production of coal hauling equipment at PT Bima Nusa Internasional. High rainfall can affect the performance...
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Penggunaan Eceng Gondok dalam Pengolahan Air Bekas Galian Tambang Batubara untuk Perumahan di Kota Samarinda
M. Dwi Triosusanto
; Shalaho Dina Devy
; Revia Oktaviani
; Windhu Nugroho
; Lucia Litha Respati
Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Vol 3
, No 3
(2025)
The implementation of coal mining activities with an open pit system at the end of its activities will leave behind the remains of former mining holes. Control of acid mine water is something that needs to be done during mining activities until the end of the mining process because acid mine water can cause a decrease in the quality of surface water and groundwater and have an impact on the survival of humans and biota that live on land and water. The initial characteristics of water using the f...
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Optimalisasi Penggunaan Fly Ash Untuk Reduksi Kadar Besi (Fe) Dan Mangan (Mn) Serta Peningkatan pH Dalam Air Asam Tambang
Rofi Taufiqurrahman
; Shalaho Dina Devy
; Windhu Nugroho
; Agus Winarno
; Henny Magdalena
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri
Vol 2
, No 3
(2024)
Coal mining activities often result in acid mine drainage (AMD), which can cause environmental pollution if not properly managed. This study aims to evaluate the potential use of fly ash from the Stream Power Plant (PLTU) Tenggarong to mitigate the impacts of AMD, specifically targeting iron (Fe), manganese (Mn), and pH parameters. Acid Mine drainage is formed when sulfide minerals oxidize, producing acidic compounds that can harm the environment. This research focuses on analyzing the ability o...
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Analisis Pengaruh Mineral terhadap Nilai Kuat Tekan Batuan
Noviandra Eko Putra
; Shalaho Dina Devy
; Agus Winarno
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil
Vol 2
, No 3
(2024)
To determine the mineral content and composition of a rock, a petrographic test is carried out using a thin section method. Petrographic test is known as an efficient test of time and energy with accurate results in obtaining the composition and mineral content of rocks. The Point Load test is an index test that has been widely used to predict the UCS value of a rock indirectly in the field. This is due to the simple test procedure, easy sample preparation and can be done in the field, so that t...
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Studi Korelasi Uniaxial Compressive Strength Dan Rebound Number Schmidt Hammer Pada Batulanau Formasi Pulau Balang Dan Kampung Baru Daerah Kalimantan Timur
Sri Wahyuni
; Tommy Trides
; Harjuni Hasan
; Revia Oktaviani
; Shalaho Dina Devy
Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Vol 2
, No 3
(2024)
Uniaxial Compressive Strength is a test method to classify the strength and characterization of intact rock. Where it is important information in determining the strength and characteristics of a rock obtained by testing using the UCS tool. In this research, an alternative is made in determining the UCS value precisely and easily, namely by using the schmidt hammer test and compressive strength test. Therefore, this research aims to obtain the correlation value between the results of the compres...
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