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All Journal Jurnal Reka Lingkungan Jurnal IPTEK Journal of Geoscience, Engineering, Environment, and Technology INTEGER: Journal of Information Technology PROMINE Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal GEOSAPTA Prosiding Temu Profesi Tahunan PERHAPI KURVATEK Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Earth and Marine Technology (JEMT) Journal of Metallurgical Engineering and Processing Technology Journal of Applied Sciences, Management and Engineering Technology (JASMET) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Jurnal Inovasi Pertambangan dan Lingkungan J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Avellyn Shinthya Sari
Institut Teknologi Adhi Tama Surabaya
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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KAJIAN TEKNIS ALAT PEREMUK UNTUK MENINGKATKAN PRODUKSI PT. GUNUNG PUNCAK SALAM PROVINSI JAWA BARAT Ratih Hardini Kusuma Putri; Casimiro Orleans Martins; Avellyn Shinthya Sari; Esthi Kusdarini; Fairus Atika Redanto Putri
Journal of Metallurgical Engineering and Processing Technology Vol 2, No 2 (February 2022)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v2i2.6719

Abstract

PT. Gunung Puncak Salam merupakan perusahaan yang bergerak dalam kegiatan pertambangan batu andesit dan sebagai pemasok di wilayah Jawa Barat dan sekitarnya. PT. Gunung Puncak Salam memiliki usaha pertambangan (IUP) seluas 24 Ha tetapi yang di ijinkan untuk ditambang dari Dinas Pertambangan setempat adalah seluas 6 Ha di kampung cikuya, Desa Lagadar, Kecamatan Margaasih, Kabupaten Bandung, Provinsi Jawa Barat. Keberadaan perusahaan tersebut diharapkan dapat berdampak positif terhadap peningkatan perekonomian diwilayah sekitar perusahaan khususnya di Kabupaten Bandung.Pengolahan batu andesit yang dilakukan PT. Gunung Puncak Salam terdiri dari tiga unit permuk batuan yaitu permuk pertama (Primary Jaw Crusher), permuk kedua (Secondary Jaw Crusher), dan permuk ke tiga (Tertiary Vertical Shaft Crusher). Tetapi dalam prakteknya banyak kendala yang di hadapi. Objek penelitian hanya terbatas pada Unit Crushing Plant dengan sasaran produksi yang direncanakan sebesar 800 ton/hari atau 100 ton/jam, sedangkan pada kenyatannya target belum tercapai.Penelitian ini menganalisis produksi pada pengolahan (unit crushing plant) dengan kesesuaian target produksi serta kapasitas dan efisiensi dari unit peremuk. Peralatan pabrik peremuk yang dipilih antara lain Vibrating grizzly feeder merk AEG Type A180MYR1 kapasitas 150 ton/jam, Single deck vibrating screen merk Metso Premier Inclined Screen CVB201TM,  Primary Jaw crusher merk VEMA Type S280-8 (600-900mm) kapasitas 150 ton/jam, Secondary Jaw crusher merk SHANBAO Type E250 x 1200 PEX kapasitas 120 ton/jam, Tertiary Vertical Shaft crusher merk Vertical Crusher Type E250 x 1200 PEX kapasitas 100 ton/jam, Belt conveyor (BC.1-BC8) kapasitas 80 ton/jam, Screen (I) merk YUEME Type YP-725C kapasitas 226 ton/jam, volume Hopper sebesar 20,33 m³ sehingga kapasitas 28,46 ton/jam. Produk Unit Crushing Plant pada saat ini sebesar 618 ton/hari atau 70 ton/jam denga waktu kerja efektif sebesar 6,95 jam/hari.
PENENTUAN KOMPOSISI BAHAN BAKU PADA PEMANFAATAN FLY ASH PADA PROSES PRODUKSI PAVING BLOCK Esthi Kusdarini; Freeda Inggrit Ulviandri; Avellyn Shinthya Sari
Jurnal Reka Lingkungan Vol 10, No 2 (2022)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v10i2.103-112

Abstract

Fly ash merupakan limbah pembakaran batubara yang bisa dimanfaatkan untuk bahan paving block. Penelitian ini bertujuan untuk menemukan komposisi terbaik dari bahan paving block, pengujian kuat tekan, dan serapan air. Metode yang digunakan adalah eksperimen skala laboratorium. Eksperimen menggunakan variabel formula bahan. Formula 1 terdiri dari semen : pasir : fly ash dengan komposisi : K11 (1 : 5 : 0;); K12 (1 : 5 : 0,5); dan K13 (1 : 5 : 1). Formula 2 terdiri dari semen putih : pasir : fly ash dengan komposisi K21 (1 : 5 : 0;); K22 (1 : 5 : 0,5); dan K23 (1 : 5 : 1). Formula 3 terdiri dari fly ash : pasir dengan komposisi K31 (1 : 5) dan K32 (2 : 5). Hasil penelitian menunjukkan bahwa formula 1 dengan komposisi K13 memberikan hasil terbaik dengan kuat tekan rata-rata sebesar 30,2 MPa dan serapan air sebesar 9,8%. 
TECHNICAL DESIGN OF WELLS (SUMP) AND PUMP REQUIREMENTS IN OPEN PIT MINE DRAINAGE AT PT. MULIA BARATAMA PLAN, LONG BELEH, KEMBANG JANGGUT, KUTAI KARTANEGARA, EAST KALIMANTAN Sari, Avellyn Shinthya; Cahyono, Yudho Dwi Galih; Kombongkila, Yopi
Journal of Applied Sciences, Management and Engineering Technology Vol 4, No 2 (2023)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2023.v4i2.5031

Abstract

PT. Rencana Mulia Baratama is one of the companies engaged in coal mining in Long Beleh Village. The area of WIUP OP owned is 3,993 ha with a Production Forest Area of 2,630.4. The drainage system applied at PT. Mulia Baratama's plan is Mine Dewatering, which is by flowing all runoff water into a well (sump) to be pumped out of the mining area which flows into the settling pond. The well is a place that serves to hold a temporary amount of water before being pumped out The actual volume of the well in pit 1 is 58,000 m3. The planned rainfall period based on the 5-year rain reset period is 179.473 mm/day and the duration of rain is 2.4 hours per day. So that the amount of rain intensity calculated by the monobe equation is 37.39 mm/hour. The total water discharge entering the mining site is 58,817,254 m3/day which comes from runoff water discharge of 13,260,552 m3/day and rainwater discharge of 45,556,704 m3/day. The pumping discharge carried out is 462.4 m3/hour using one type of centrifugal pump 200x150 using Rpm 150 so that the total water discharge that can be drained in a day is 7,398.4 m3/day.
Analysis of Groundwater Biological Parameters in Ponjong District, Gunung Kidul Regency, Special Region of Yogyakarta Sari, Avellyn Shinthya; Kusumayudha, Sari Bahagiarti; Suharsono, Suharsono; Prasetyadi, Corolus
Journal of Applied Sciences, Management and Engineering Technology Vol 4, No 2 (2023)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2023.v4i2.5034

Abstract

This study shows that the condition of the well water tested based on physical, chemical and biological parameters to determine the feasibility of the water used by the surrounding community still meets the required quality standard thresholds. Although somewhat polluted because of the mining. Underground water in the karst area of Gunungkidul Regency is safe as raw water for drinking by residents and meets the standards set by the Indonesian Ministry of Health and Government Regulation Number 82 of 2001 concerning Water Quality Management and Water Pollution Control. If used as drinking water, it still has to go through water treatment or be heated to a certain boiling point, because it contains bacteria that may be harmful to humans.
OPTIMIZATION OF THE PERFORMANCE OF THE SANDSTONE CRUSHING PLANT UNIT AT PT PULAU LEMON Kusdarini, Esthi; Ayunida Sasti, Sylvesiana; Shinthya Sari, Avellyn
KURVATEK Vol 9 No 1 (2024): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v9i1.4899

Abstract

The process of processing sandstone material at the PT Pulau Lemon crushing unit is not yet optimal. This is due to differences in the amount of material entering and leaving the crushing unit. To optimize the performance of the processing unit, it is necessary to conduct research on the causes of material loss. Furthermore, the research aims to: 1) calculate material loss; 2) assess the causes of material loss and determine efforts to minimize material loss. The research was carried out using mathematical calculations using mass balance equations for material entering and leaving the processing unit, field observations and interviews. The research results showed that the amount of incoming material was 16.66 tons/day and outgoing material was 14.85 tons/day, so the material lost was 1.81 tons/day. or 10.80%. Material loss is caused by the slope of the conveyor belt being less than gentle and some parts being torn, wind, rain and mechanical problems. Efforts to optimize the performance of processing units include reducing waiting times, regularly checking and repairing equipment, and installing roofs.
Design and Planning of Mine Drainage Systems at PT. Pertama Mina Sutra Perkasa, Puger District, Jember Regency, East Java, Indonesia Malik, Aldy Maulana; Sari, Avellyn Shinthya; Putri, Fairus Atika Redanto
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5352

Abstract

PT. Pertama Mina Sutra Perkasa, a limestone mining company, operates in Grenden Village, Puger District, Jember Regency, East Java Province. Utilizing an open mining system, the company faces challenges related to mine drainage. Based on rainfall analysis from 2013 to 2020. the planned rainfall rate is 25.938 mm/hour, with a rainfall intensity of 5.712 mm/hour, resulting in a runoff water discharge of 0.599 m³/second. The water discharge entering the well at the site is 2159.08 m³/hour. The designed drainage channel has a discharge capacity of 3.109 m³/second, a wet surface area of 0.5 m², a channel bottom slope of 0.03%, a hydraulic radius of 0.25 m, a Manning roughness coefficient of 0.011. a wet cross-section circumference of 2 m, and a flow depth of 0.5 m. The planned well dimensions are 60 m in length, 20 m in width, and 7 m in depth, with a volume of 8400 m³. The current sludge settling pond has three compartments with a total capacity of 393.75 m³. The proposed design for the sludge settling pond includes a length of 60.6 m, a width of 15 m, a depth of 7 m, and a volume of 5454 m³. The actual mud dredging frequency is once every 2 days, while the proposed plan extends this interval to 9 days using a Doosan 340DX type excavator. This comprehensive drainage system design aims to efficiently manage runoff and sedimentation, ensuring sustainable mining operations
Recovery Tembaga Menggunakan Asam Sulfat Kusdarini, Esthi; Saleky, Dewy Belavista; Sari, Avellyn Shinthya
Geosapta Vol 9, No 1 (2023): JANUARI 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jg.v9i1.14572

Abstract

Recovery Cu pada pengolahan bijih tembaga perlu dioptimalkan mengingat kebutuhan industri terhadap logam Cu yang sangat besar. Salah satu cara pengolahan bijih tembaga menggunakan metode pelindian menggunakan larutan H2SO4. Penelitian ini bertujuan mempelajari pengaruh variabel konsentrasi larutan H2SO4 dan waktu proses pelindian terhadap recovery Cu, Fe, Zn. Pada penelitian ini dilakukan eksperimen skala laboratorium dengan variabel konsentrasi H2SO4 : 20 g/L dan 40 g/L, sedangkan variabel waktu proses pelindian : 0,5 jam, 2 jam, 4 jam, 8 jam, 24 jam, 30 jam, 48jam, dan 72 jam. Selanjutnya untuk karakteristik bijih tembaga yang diolah mengandung Cu 1,68%, Fe 39,27%, dan Zn 1,38%. Analisa kandungan Cu, Fe, Zn dari sampel larutan kaya menggunakan metode AAS (Atomic Absorption Spectroscopy). Hasil penelitian menunjukkan bahwa pelindian menggunakan larutan H2SO4 dengan konsentrasi 20 g/L menghasilkan recovery tertinggi : Cu sebesar 79% (24 jam pelindian), Fe sebesar 3,0% (72 jam pelindian), Zn sebesar 85% (72 jam pelindian). Sedangkan pelindian menggunakan larutan H2SO4 dengan konsentrasi 40 g/L menghasilkan recovery tertinggi : Cu sebesar 68% (72 jam pelindian), Fe sebesar 3,3% (72 jam pelindian), Zn sebesar 95% (72 jam pelindian). Hasil penelitian ini sangat penting karena dapat menemukan konsentrasi larutan H2SO4 dan waktu pelindian terbaik sehingga dapat menghemat penggunaan larutan H2SO4 dan waktu pelindian.
Calculation of reserve estimation in the new pit design using mining software at PT. Tanjung Alam Jaya pit x, Banjar, South Borneo. Mahardhika, Abimanyu; Sari, Avellyn Shinthya
Journal of Earth and Marine Technology (JEMT) Vol 3, No 2 (2023)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2023.v3i2.4053

Abstract

The mining planning and design were carried out in PT. Tanjung Alam Jaya, a coal mining company in South Kalimantan. The company intends to re-mine the Pit X area and requires a comprehensive mine planning approach to achieve its mining objectives. The study focuses on long-term planning, specifically optimizing the pit design while considering the company's specified stripping ratio limit and calculating the potential reserve volumes. The research aims to develop an optimized pit design and estimate the quantity of mineable reserves based on the optimization results. The findings include a mining layout design drawing and the calculated coal reserves that can be extracted from the optimized pit design. The excavation area spans 38.1 hectares, with excavation limits reaching a depth of -56 meters above sea level. The shape of the excavation extends from northeast to southwest, with a length of 1,065 meters and a variable width of 310 to 460 meters. The excavation features a slope height of 10 meters and a single slope angle of 65 degrees. Moreover, the haul road measures 21 meters in width with a 10% grade. The pit design indicates a total mineable coal reserve of 1,400,263.48 tons across all seams. Additionally, it reveals that 21,565,312.42 bcm of overburden / interburden must be stripped, resulting in a stripping ratio of 15.40 for the specific pit design. The haul road measures 21 meters in width with a 10% grade. In conclusion, this research demonstrates PT Tanjung Alam Jaya's efforts to optimize their pit design for re-mining in the Pit X area. The study provides valuable insights through a comprehensive mine planning approach, aiding the company in achieving their mining objectives while adhering to specified limits.
Optimized Drainage System Design for Andesite Mining at PT. Rolas Nusantara Tambang, Kejayan, East Java Melang, Antonius Longan; Sari, Avellyn Shinthya; Fanani, Yazid
Journal of Earth and Marine Technology (JEMT) Vol 4, No 1 (2023)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2023.v4i1.4793

Abstract

This study presents a systematic approach to designing a filtration system aimed at efficiently managing rainwater and surface runoff outside mining areas. Utilizing a quantitative method, the data collection predominantly involves secondary sources. The data is processed through a series of steps: rainfall projection, delineation of rainwater catchment areas, calculation of rainfall intensity and inflow rate, and determination of open channel and settling pond dimensions. The designed open channels have a trapezoidal shape with specific dimensions including a base width of 0.51 m, a side length of 0.62 m, a slope angle of 60°, and a channel depth of 0.54 m. These channels span a total length of 2.216 m. The accompanying settling ponds are rectangular with dimensions encompassing a length of 31 m, a width of 11 m, a depth of 6 m, and an area of 341 m². These ponds have a volume capacity of 2,046 m³, achieving an impressive 90.89% efficiency. Notably, maintenance of the settling pond involves periodic dredging using the Kobelco SK200 Excavator at intervals of roughly 16 years (5,817 days). Given that this maintenance duration surpasses the expected mine lifespan, no further interventions are required for the pond during the mine's operational period.
Estimation of Nickel Laterite Resources and Reserves Using Ordinary Kriging and Inverse Distance Weighting (IDW) Methods: A Case Study from the Kolaka Block, PT Indrabakti Mustika, North Konawe Regency, Southeast Sulawesi Putra, Inga Kharisma; Sari, Avellyn Shinthya; Yuwanto, Sapto Heru
Journal of Earth and Marine Technology (JEMT) Vol 5, No 1 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v5i1.6190

Abstract

This study aims to assess the geological domains and estimate the nickel laterite resources and reserves within the Kolaka Block exploration area at PT Indrabakti Mustika, utilizing the Ordinary Kriging and Inverse Distance Weight (IDW) methods. The research employs quantitative and qualitative approaches to evaluate the geological framework and estimate the nickel laterite resources and reserves. Geological domain classification—limonite, saprolite, and bedrock layers—was achieved through detailed core section analysis, which informed the delineation of the nickel laterite zones. Based on the IDW method, the resource estimation results indicate 3,180,350 m³ (4,611,509 metric tons) of nickel laterite resources. This is subdivided into limonite zone resources (1,547,475 m³ or 2,243,840 metric tons) and saprolite zone resources (1,632,875 m³ or 2,367,669 metric tons). Using the Ordinary Kriging method, the total nickel laterite resource is estimated at 3,212,275 m³ (4,657,801 metric tons), with the limonite zone contributing 1,562,500 m³ (2,265,627 metric tons) and the saprolite zone contributing 1,649,775 m³ (2,392,174 metric tons). For the reserve estimation, the IDW method suggests a total of 1,205,875 m³ (1,748,520 metric tons) of nickel laterite reserves. These reserves are divided into limonite zone reserves (456,275 m³ or 661,600 metric tons) and saprolite zone reserves (749,600 m³ or 1,086,920 metric tons). In contrast, the Ordinary Kriging method estimates a total of 1,142,225 m³ (1,656,227 metric tons) of reserves, with limonite zone reserves of 516,700 m³ (749,216 metric tons) and saprolite zone reserves of 625,525 m³ (907,011 metric tons). These findings provide a comprehensive understanding of nickel laterite's geological and resource distribution in the Kolaka Block, offering crucial data for further exploration and development activities at PT Indrabakti Mustika.
Co-Authors Abdan Said Halim Limtar Adi Reski Surya Patioran Agus Purwidadi, Pani Eka Ahmad Betras Ediwana Ahmad Jefri Al Bukhari Ahmad Ubaidillah Fathoni Anastasia Nadia Gaidah Angga Pratama Putra Kobba Arie Fadjar Saputro Arlida Dwi Pangestika Arya Fernando Assa, King Christ Majesty Spencer Atiyatussa’adah, Eva Ayunida Sasti, Sylvesiana Billi Hanok Wambukomo Budiarto Budiarto Budiarto Budiarto Budiarto Budiarto Bukhari, Ahmad Jefri Al C. Prasetyadi Casimiro Orleans Martins Chaq, Nakhlah Amiroh Risyda Destyagung Febyeta Ediwana, Ahmad Betras Eko Purnomo eko purnomo Fajar Rizki Widiatmoko Fanani, Yazid Farid, Wendy Muhammad Ibnu Fathoni, Ahmad Ubaidillah Febyeta, Destyagung Fernando, Arya Fitri Indah Dwi Suci Freeda Inggrit Ulviandri Gaidah, Anastasia Nadia Geri, Martinus Lousiano Gomes, Nazario Gowarno, Marshellino Azry Hardi Wahono Haryanto, Suis Edi Heryawan, Muhammad Aditya Ika Justitia Julita Ikal Don Lelewa Iksan Iksan Iksan, Iksan Julita, Ika Justitia King Christ Majesty Spencer Assa Kobba, Angga Pratama Putra Kombongkila, Yopi Kusdarini, Esthi Kusumayudha, Sari Bahagiarti Latekay, Priskilla Lelewa, Ikal Don Limtar, Abdan Said Halim Mahardhika, Abimanyu Mahendra, Seftian Mahindra, Moch. Fahni Malik, Aldy Maulana Manopo, Sherina Marshellino Azry Gowarno Martinus Lousiano Geri Melang, Antonius Longan Minto Basuki Minto Basuki Miru, Poppy Paulina Moch. Fahni Mahindra Muhammad Abdurrozak Siamashari Nakhlah Amiroh Risyda Chaq Nazario Gomes Novandri Kusuma Wardana Osfaldo Try Sa’ban Pangestika, Arlida Dwi Patioran, Adi Reski Surya Poppy Paulina Miru Prasetyadi, Corolus Priskilla Latekay purba, Wilbert Hamongan Putra, Inga Kharisma Putri, Fairus Atika Redanto Ratih Hardini Kusuma Putri Sa’ban, Osfaldo Try Saleky, Dewy Belavista Sapto Heru Yuwanto Saputro, Arie Fadjar Sarastika, Ristya Mahda Sari Bahagiarti Kusumayudha Sari Bahagiarti Kusumayudha Satria Ambara Iriawan Satria Ambara Iriawan, Satria Ambara Seftian Mahendra Seran, Lucitania Grasella Rotyn Sherina Manopo Siamashari, Muhammad Abdurrozak Sikopa, Maudy Cheisylia Suci, Fitri Indah Dwi Suharsono Suharsono Suharsono Suharsono Suis Edi Haryanto Wahono, Hardi Warayaan, Regina Wendy Muhammad Ibnu Farid Widiatmoko, Fajar Rizki Wilbert Hamongan purba Yazid Fanani Yudho Dwi Galih Cahyono