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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
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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Hubungan Respon Time Perawat dengan Tingkat Kepuasan Pasien di Instalasi Gawat Darurat RS Charlie Hospital Kendal
Jurnal Inovasi Riset Ilmu Kesehatan
Vol 3
, No 4
(2025)
Response time refers to the speed of nurses in providing initial responses to patients, measured from the moment patients arrive at the hospital entrance until they receive medical attention from emergency room staff. Patient satisfaction is an important indicator of healthcare quality, reflecting the comparison between patient expectations and the services received. This study passed the ethical review process with approval number 66/EC-LPPM/UWHS/IV-2025 and used a quantitative correlational de...
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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: -
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
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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The Effect Of Digital Transformation And Lifestyle On Saving Decisions Mediated By User Satisfaction Of Kb Star In Jember Regency
International Journal of Management and Digital Sciences
Vol 2
, No 3
(2025)
This study aims to analyze the influence of digital transformation and lifestyle on saving decisions, with user satisfaction as a mediating variable among users of the KB Star application in Jember Regency. Digital transformation enables financial institutions to offer efficient, fast, and integrated services, while lifestyle reflects customer preferences and behaviors that also shape financial decisions. KB Star, as a digital banking platform by KB Bank, has experienced a significant increase i...
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Penggunaan Eceng Gondok dalam Pengolahan Air Bekas Galian Tambang Batubara untuk Perumahan di Kota Samarinda
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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Analisis Coal Recovery dan Coal Losses pada Rangkaian Penambangan PIT X PT. Jembayan Muarabara Kutai Kartanegara, Kalimantan Timur
Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Vol 3
, No 3
(2025)
In mining activities, there is often a discrepancy between the plan and the actual conditions in the field, this discrepancy was found after reconciliation at the end of the progress (month). From the mining activities carried out by PT. Jembayan Muarabara (JMB), coal roof floor data was obtained from the survey which was then used to find survey tonnage, model tonnage data and actual tonnage scales. Then from this data it can be used to obtain coal recovery, coal looses in coal cleaning, loadin...
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