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All Journal Ensiklopedia of Journal Seminar Nasional Lahan Suboptimal Jurnal Ners Journal of Comprehensive Science Blantika : Multidisciplinary Journal Jurnal Inovasi Global Contemporary Journal of Applied Sciences (CJAS) Jurnal Teknologi Mineral dan Batubara J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Yovanda, Ridho
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Analisis Iklim untuk Perencanaan Media Tanam yang Mampu Beradaptasi dalam Dampak Perubahan Iklim Sugiarto, Ari; Syafriyandi, Debby; Yovanda, Ridho
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 “Revital
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Sugiarto, A., Syafriyandi, D., & Yovanda, R. (2024). climate analysis for planting media planning that is adaptable to the impact of climate change. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 753–761). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The aimed of this research was to analyze the climat for planning the development of planting media designs that are able to adapt to the impacts of climate change. The climate crisis seriously impacts the agricultural sector, such as the threat of flooding and drought. As a form of adaptation to the impact of climate change, the agricultural sector must innovate, one of which is through planting media. It is essential to develop planting media based on climate analysis to provide an excellent opportunity for successful adaptation to the impact of climate change. Climate analysis in a place to support the development of planting media can include analysis of trends in climate variables and estimates of changes in the water balance. Changes in climate variables and estimates of changes in the water balance provide information for the development of planting media designs in an area to avoid the impacts of flooding and drought. Changes in climate variables can provide detailed information on future environmental conditions and changes in plants' availability and needs of water. Specifically, the development of planting media designs can be a determinant of the success of adaptation to the impacts of climate change that are being faced, but planting media designs must be considered based on the results of climate analysis.
Analysis of Acid Mining Water Management Using Active Method (Case Study: Bangko Barat KPL BB 07 PT Bukit Aam Tbk. Tanjung Enim, Sumatera Selatan) Arisah, Feni; Pratiwi, Yuniar; Yovanda, Ridho
Contemporary Journal of Applied Sciences Vol. 2 No. 5 (2024): May 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/cjas.v2i5.11656

Abstract

The presence of acid mine water will have a negative impact on the community and the environment so that prevention and management of acid mine water is needed by utilizing quicklime and alum which function to neutralize and precipitate acid mine water. The purpose of this study was to understand the process of managing acid mine water with the active method applied at PT Bukit Asam Tbk. The results of this study are where the stages of acid mine water management start from pumping sump water and measuring the water discharge and flowing to KPL BB 07 after that the pH of the inlet and outlet water is checked periodically for 1 month, then flowed into the water body if it meets environmental quality standards, namely with a pH of 6. The dosage of quicklime and alum used varies, depending on the water conditions in the KPL
ANALISIS KUALITAS BATUBARA MENGGUNAKAN METODE PROXIMATE ANALYSIS DI PERUSAHAAN TAMBANG PT X Yovanda, Ridho; Afifatuz Zahroh, Rizkinia
Ensiklopedia of Journal Vol 7, No 3 (2025): Vol. 7 No. 3 Edisi 3 April 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v7i3.3289

Abstract

Batubara adalah mineral organik yang terbentuk dari tumbuhan-tumbuhan setelah mengalami proses penguraian secara biokimia, kimia, dan fisika dalam kondisi bebas oksigen secara langsung pada tekanan serta temperatur tertentu dalam waktu yang lama. Kualitas Batubara ditentukan oleh maseral dan mineral matter penyusunnya serta derajat coalification (rank). Pemanfaatan dan pengelolaan batubara menjadi perhatian dalam memperoleh informasi terhadap kualitas batubara. Menentukan kualitas batubara dapat dilakukan dengan analisis kimia pada batubara yang diantaranya berupa analisis proksimat. Selain itu, kualitas batubara juga berdampak pada kesehatan masyarakat dan mendukung transisi menuju energi bersih. Tujuan penelitian ini yaitu untuk menganalisis kualitas Batubara menggunakan metode  Proximate Analysis. Metode penelitian yang digunakan adalah deskriptif kuantitatif, teknik pengumpulan data melalui observasi langsung, wawancara informal, dokumentasi, serta analisis data laboratorium. Hasil penelitian didapatkan bahwa dari hasil uji laboratorium terhadap kualitas batubara Seam A, B, dan C yaitu, Seam A memiliki kadar abu terendah yaitu 3,52% (adb), sulfur terendah sebesar 0,20% (ar), dan nilai kalori tertinggi sebesar 4456 kcal/kg (ar). Seam B memiliki kadar abu 6,33% (adb), sulfur 0,22% (ar), dan nilai kalori 4397 kcal/kg (ar). Seam C menunjukkan kualitas paling rendah, dengan kadar abu tertinggi sebesar 8,76% (adb), sulfur tertinggi sebesar 0,73% (ar), dan nilai kalori terendah sebesar 4334 kcal/kg (ar).Kata Kunci : Kualitas, Batu Bara, Proximate Analysis, Perusahaan Tambang
Evaluasi Produktivitas Alat Gali Muat Excavator Caterpillar 345 Dan Alat Angkut Dump Truck Axors Pada Aktivitas Coal Getting Pada Pt Dizamatra Powerindo Site Lahat Sumatera Selatan Saputra, M Wijaya; Arisanti, Reni; Yovanda, Ridho
Blantika: Multidisciplinary Journal Vol. 3 No. 9 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i9.414

Abstract

Kegiatan coal getting di PT. Dizamatra Powerindo merupakan salah satu tahapan penting dalam proses penambangan batubara, di mana penggunaan alat berat seperti excavator dan dump truck menjadi penentu utama produktivitas. Penelitian ini bertujuan untuk mengevaluasi produktivitas alat gali muat Excavator Caterpillar 345 dan alat angkut Dump Truck Axors pada aktivitas coal getting di site Lahat, Sumatera Selatan. Metode yang digunakan dalam penelitian ini meliputi observasi langsung di lapangan, pengambilan data primer seperti waktu edar (cycle time), efisiensi kerja, dan jumlah alat, serta data sekunder berupa spesifikasi alat dan data curah hujan. Hasil perhitungan menunjukkan bahwa produktivitas alat gali muat sebesar 234,74 ton/jam, sedikit di bawah target perusahaan sebesar 240 ton/jam, sedangkan produktivitas alat angkut sebesar 35,58 ton/jam, juga belum mencapai target 40 ton/jam. Evaluasi keserasian kerja alat (match factor) menunjukkan nilai 0,73 yang menandakan terdapat waktu tunggu pada alat gali muat. Faktor-faktor yang mempengaruhi kinerja alat meliputi kondisi front penambangan, kondisi jalan angkut, dan pola pemuatan. Sebagai solusi, disarankan penambahan unit dump truck untuk mencapai match factor mendekati 1 agar sinkronisasi kerja lebih optimal.
Manajemen Quality Control Batubara Seam A, B, dan C pada Pit Pe dan Rom 5pt Priamanaya Energi Lahat Sumatera Selatan Zahroh, Rizkinia Afifatuz; Yovanda, Ridho; Susilo, Aris
Blantika: Multidisciplinary Journal Vol. 3 No. 10 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i10.427

Abstract

This study aims to evaluate the management of coal quality control at seams A, B, and C in the Pit and ROM area of PT Priamanaya Energi Lahat, South Sumatra. Coal quality control is crucial to keep product specifications in accordance with company standards, especially in terms of ash, sulfur, and calorific value. The research method used is quantitative descriptive, with data collection techniques through direct observation, informal interviews, documentation, and laboratory data analysis. The quality control activities observed included channel sampling, installation of barrier stakes, visual inspection of coal characteristics, and coal cleaning activities using excavators to clean coal from impurities directly in the pit area. After the coal is transferred to the ROM, quality control is continued through stack separation based on seam quality, where seams A and B are stacked in the ROM of block A, while seam C which has a higher sulfur content is placed in the ROM of block C. This process also includes handpicking, resizing activitiescoal measuring >30 cm, as well as new dumping monitoring to prevent contamination between piles. The results of the analysis showed that seams A and B were of better quality than seam C, with lower ash and sulfur content and higher caloric values. Quality control management from Pit to ROM has proven to be effective in maintaining coal quality, especially when each stage of supervision is carried out based on the characteristics of each seam. Pile separation, corrective actions in the field, and visual supervision are key in preventing mixing and degrading coal quality.
Analisis Blending Kualitas Batubara Pit Pe Seam A, B dan C Untuk Memenuhi Nilai Kadar Sulfur Pltu Keban Agung Pt Priamanaya Energi Lahat Sumatera Selatan Andini, Ubai Dila; Yovanda, Ridho; Permatasari, Syelly Eka
Jurnal Inovasi Global Vol. 3 No. 8 (2025): Jurnal Inovasi Global
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jig.v3i8.403

Abstract

The Keban Agung Power Plant is a Steam Power Plant located in Kebur Village, West Merapi District, Lahat Regency, which requires coal as its main fuel with quality that meets the standards of PLTU specifications to optimize the combustion process and reduce SO2 emissions. One of the most important coal quality parameters that need to be considered in coal suppliers to coal-fired power plants is sulfur content. Priamanaya Energi Coal Pit Coal seam A has a sulfur content of 0.16, seam B of 0.28, while seam C of 0.91 and 1.12. High sulfur levels cannot enter the coal-fired power plant because it can cause damage to the equipment such as rusting (corrosion). Therefore, this study aims to analyze the quality of seam coal A, B, and C used in coal blending activities to meet the sulfur content value of seam C coal in accordance with the specification standards of the Keban Agung PLTU which is at 0.1 to 0.5. Based on the 10 calculations of the coal quality blending test, it shows that blending with a composition of 8:1 with a tonnage of 2430 tons succeeded in reducing the sulfur content value of coal seam C to 0.31.
Evaluasi Efisiensi Cycle Time Terhadap Produktivitas Alat Angkut Dt 50 Pada Operasi Hauling Batubara Pt. Kumala Bahtera Utama Hasibuan, Ahmad Rizki; Yovanda, Ridho; Permatasari, Syelly Eka
Jurnal Inovasi Global Vol. 3 No. 9 (2025): Jurnal Inovasi Global
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jig.v3i9.423

Abstract

Penelitian ini bertujuan untuk mengevaluasi dan efisiensi cycle time produksi pada kegiatan hauling menggunakan Dump Truck Shacman X3000 di PT. Kumala Bahtera Utama. Cycle time merupakan waktu yang dibutuhkan untuk menyelesaikan satu siklus kerja hauling, mulai dari proses pemuatan, pengangkutan, pembongkaran muatan, hingga kembali ke titik awal. Penelitian dilakukan melalui observasi lapangan, pengumpulan data primer dan sekunder, serta analisis perbandingan antara cycle time aktual dengan rencana perusahaan. Hasil penelitian menunjukkan bahwa rata-rata cycle time aktual mencapai 4 jam 59 menit, lebih tinggi dari rencana 4 jam per siklus. Rata-rata produktivitas aktual sebesar 8,65 ton/jam, berada di bawah target 13,25 ton/jam. Ketidakefisienan disebabkan oleh antrean saat pemuatan dan pembongkaran, waktu tunggu (waiting time), serta lost time seperti waktu istirahat dan pemeriksaan unit. Upaya perbaikan yang direkomendasikan meliputi pengaturan ulang jadwal rotasi unit, penerapan sistem antrean digital, optimalisasi layout jalur hauling, serta pemanfaatan teknologi GPS dan sistem monitoring waktu secara real-time. Simulasi tanpa hambatan menunjukkan potensi produktivitas hingga 20 ton/jam. Hasil ini menegaskan pentingnya pengelolaan waktu operasional untuk meningkatkan efisiensi dan pencapaian target produksi.
Development of Planting Media for Agricultural Land Prone to Waterlogging Sugiarto, Ari; Syafriyandi, Debby; Yovanda, Ridho
Jurnal Teknik Sipil dan Lingkungan Vol. 10 No. 1: April 2025
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.10.1.35-44

Abstract

Waterlogging is a serious problem currently being faced in the agricultural sector. Climate change has increased the frequency of extreme rainfall events, which has increased the potential for agricultural land flooding. Therefore, innovations in planting media that can float during waterlogging are required. The purpose of this study was to create a planting medium based on simple automatic water flow and excess water control using a climate-based approach and plant water needs. The study stages were divided into three categories: climate data, planting media design and simulation, and field tests. The results of this study show that the design of planting media that considers plant water needs based on the amount of water lost can save water. The application of a drainage system on the side of the planting media prevented plant death in the planting media due to waterlogging, based on projections of an increase in extreme R-events. The use of plastic bottles in the design of the planting media was effective in providing buoyancy to the planting media during waterlogging. The developed planting medium is suitable for adaptation to agricultural land that is prone to waterlogging amidst the threat of the climate crisis that the world is currently facing.
ANALISIS NILAI KEEKONOMIAN PERUNTUKAN LAHAN BEKAS TAMBANG BATUBARA SEBAGAI ASIMILATOR KARBON Yovanda, Ridho; Juniah, Restu; Yulianita, Anna; Anaperta, Yoszi; Rahmi, Hisni
Jurnal Teknologi Mineral dan Batubara Vol 19 No 1 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No1.2023.1311

Abstract

The environmental issues that usually arise from mining activities are ex-coal mining lands in the form of mine pits (void) and land (non void) which are not managed properly. The company has an obligation to manage ex-coal mining land so that the environment remains sustainable and benefits the community by carrying out reclamation activities. Reclamation of ex-coal mining land by planting oil palm provides benefits in the form of incomes and as a carbon assimilator. This study aims to analyze the economics value of the ex-coal mining land use as a carbon assimilator by using the extended NPV analysis method. The result of analysis revealed a positive extended NPV value of IDR. 1,961,057,020,-, which means that ex-coal mining land can provide positive benefits as a carbon assimilator.
Analisis Biaya Pengurasan Sedimentasi pada Kolam Pengendap Lumpur di PT Bukit Asam Tbk Unit Pertambangan Tanjung Enim Sumatera Selatan Gumanti, Suhardiman; Julisti, Rena; Yovanda, Ridho
Journal of Comprehensive Science Vol. 3 No. 10 (2024): Journal of Comprehensive Science (JCS)
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jcs.v3i10.2383

Abstract

PT Bukit Asam is one of the companies engaged in the coal mining sector which is located in Tanjung Enim, South Sematra. The mining system applied in exploiting coal is open pit mining which produces water called acid mine water (AAT), one of the components of the AAT problem. namely total suspended solid (TSS). At PT Bukit Asam, Bangko Barat, there are several KPLs that are still in use. KPLs that are continuously supplied with mining water certainly produce a negative impact, namely silting. The aim of this research is to analyze the cost of dewatering sedimentation in mud settling ponds. The method used in this research is to use field visits and direct observations. The shallowing itself is caused by rain factors and the long deposition time. To prevent silting, draining is carried out using an excavator and loading of the material using a dump truck. Draining activities in February amounted to IDR 185,634,400.00 handling the mud settling ponds also using chemicals or control methods which are useful for settling mud particles so that the draining process at the KPL runs quickly.
Co-Authors Afifatuz Zahroh, Rizkinia Anaperta, Yoszi Andini, Ubai Dila Anna Yulianita Ari Sugiarto Aris Susilo Arisah, Feni Arisanti, Reni Hasibuan, Ahmad Rizki Hisni Rahmi Julisti, Rena Nursani, Rodiyah restu juniah, restu Saputra, M Wijaya Suhardiman Gumanti, Suhardiman Syafriyandi, Debby Syelly Eka Permatasari Yuniar Pratiwi Zahroh, Rizkinia Afifatuz