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Analisis Biaya Penggunaan Kapur dan Tawas pada Pengolahan Air Asam Tambang di Settling Pond 03 Pit Paku PT. Rimau Eko Prastyo, Andreashah; Virgiyanti, Lisa; Apui Ganang, Nuansa Mare; Sukmawatie, Neny; Fidayanti, Neny
Jurnal sosial dan sains Vol. 4 No. 10 (2024): Jurnal Sosial dan Sains
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsosains.v4i10.23508

Abstract

Penelitian ini bertujuan untuk menganalisis biaya penggunaan kapur dan tawas dalam pengolahan air asam tambang di Settling pond 03, Pit Paku, PT. Rimau Energy Mining. Air asam tambang, hasil reaksi kimia antara mineral sulfida dan air, memerlukan penanganan khusus untuk mengurangi dampak lingkungan. Penggunaan kapur dan tawas bertujuan untuk meningkatkan pH dan menurunkan kekeruhan air asam tambang. Melalui percobaan laboratorium dengan berbagai dosis kapur dan tawas, penelitian ini menemukan dosis yang paling efektif untuk menetralkan air asam tambang, meningkatkan pH, dan menurunkan kekeruhan sesuai dengan baku mutu yang ditetapkan. Selain itu, penelitian ini juga menganalisis biaya yang diperlukan untuk setiap kombinasi dosis yang diuji, dengan hasil menunjukkan perbandingan biaya pengolahan berdasarkan dosis kapur dan tawas yang digunakan. Berdasarkan analisis biaya, ditemukan bahwa kombinasi dosis kapur dan tawas yang optimal menghasilkan biaya yang lebih efektif dibandingkan metode yang diterapkan sebelumnya.. Dosis yang efektif untuk menetralkan air asam tambang adalah 1 gram kapur dan 2 gram tawas per liter, yang berhasil menaikkan pH dari 3,88-4,13 menjadi 8,10-8,40, serta menurunkan kekeruhan dari 498-522 NTU menjadi 144,9-196,1 NTU.
Adaptasi Teknologi Canva dalam Menunjang Pembelajaran di SMK Negeri 5 Palangka Raya Merce Masriani Zalukhu; Desti Arini Putri; Mellysa Caldera; Himalia Himalia; Maria Patricia Dolita Doni; Grace Yulita; Irga Loti Rante; Frich Rudolf Turnip; Michael Kentaro Lendrawan; Eldy Marcelino Agusto Soekah; Albertus Niko Liswanto; Afdhal Hafid; Neny Fidayanti; Pujihastuty Pujihastuty
I-Com: Indonesian Community Journal Vol 5 No 2 (2025): I-Com: Indonesian Community Journal (Juni 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v5i2.7036

Abstract

The independent learning campus independent program, one of which is the campus teaching activity is a from community service carried out by students to apply knowledge and apply it in the community environment. MBKM group 2 aims to make a positive contribution to community development, especially towards students. This activity involves various methods, including observation, interviews, and implementation of community empowerment programs. Student collaborate with the local community to identify needs and design appropriate solutions. Adapting technology using canva is one of the easy things for students and provides a lot of creativity through these activities. The result of this activity show an increase in public awareness of the importance of education and health and are a way for students or teachers to utilize technology. The programs implemented have succeeded in attracting active community participation and have a positive impact on daily life. MBKM group 2 has succeeded in achieving its goals in empowering the community and improving the quality of life. It is hoped that this activity can continue and become a model for further MBKM programs.
Identification of Hydrothermal Rock Alterations Based on Petrographic Analysis in Banturung Area, Bukit Batu District, Palangka Raya City I Putu Putrawiyanta; Novalisae Novalisae; Noveriady Noveriady; Neny Fidayanti; Irga Loti Rante; Hendrik Brianto
G-Tech: Jurnal Teknologi Terapan Vol 9 No 4 (2025): G-Tech, Vol. 9 No. 4 October 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i4.7991

Abstract

The Banturung region mostly consists of the morphology of igneous rock hills where most of the rocks physically show that they have undergone a process of change, so more detailed research is needed to distinguish the types of rocks that exist at the research site. This study aims to determine the distribution and types of rocks that undergo alterations at the research site. The research method with petrographic analysis, due to mineral changes and changes in rock composition in alterations can be observed from microscopic observations by paying attention to the mineral composition. The rock sample is cut into thin incisions measuring 0.035 mm so that it can be observed under a microscope. From the results of the rock incision analysis, it is known that the characteristics of rock alteration at the study site include the type of Phyllic alteration with serisite as a key mineral, with a very low alteration intensity < 25%, and hydrothermal alteration processes in dacite and tonalite rocks. This alteration process can be an early indication of the formation of metallic minerals or mineralization of valuable minerals at the research site, which is also strengthened by the discovery of pyrite minerals at the research site so that it can be further developed as a source of mineral resource research.
Perancangan Dimensi Sump di PT. Satria Alam Manunggal Site Telen Orbit Prima Desa Buhut Kecamatan Kapuas Tengah Kabupaten Kapuas Kalimantan Tengah Sri Rahmawati; Noveriady Noveriady; Yunida Iasahnia; Neny Fidayanti; Asri Fridtriyanda
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7399

Abstract

This study aims to evaluate the actual sump capacity in accommodating mine water discharge, design a sump that fits field conditions, and determine the optimal pump capacity and system at PT Satria Alam Manunggal, Telen Orbit Prima Site. The research methods include field data collection (sump condition, water discharge, and pump capacity) and supporting data (rainfall, geological maps, and pump specifications). The design rainfall was calculated using the Gumbel method with a five-year return period, while water discharge was estimated from runoff, rainfall, and groundwater inflow. The results indicate that the existing sump, with a capacity of 508 m³, is insufficient to accommodate an inflow of 1.210 m³/s. Therefore, two new sumps were designed: the West Sump with a capacity of 38,400 m³ and the East Sump with 78,281 m³. Each sump employs a DnD 150-4H pump with a discharge rate of 480 m³/hour. The West Sump pump can drain water within approximately three days, while the East Sump requires about seven days. The trapezoidal sump design was chosen for its efficiency, structural stability, and effectiveness in sediment (TSS) deposition control, maintaining levels within safe limits. In conclusion, the design of the West and East sumps is considered optimal in accommodating mine water discharge and improving the overall effectiveness of the mine drainage system.
Pemetaan Titik Lokasi Infrastruktur di Desa Ramang Berbasis Partisipatif untuk Menunjang Perencanaan Pembangunan Noveriady, Noveriady; Novalisae, Novalisae; Putrawiyanta, I Putu; Fidayanti, Neny
I-Com: Indonesian Community Journal Vol 5 No 4 (2025): I-Com: Indonesian Community Journal (Desember 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v5i4.8038

Abstract

Desa Ramang, yang terletak di pinggir sungai Kahayan, memiliki potensi sumber daya alam dan manusia yang besar, namun menghadapi tantangan dalam perencanaan pembangunan akibat kurangnya data infrastruktur yang akurat. Program Pengabdian Kepada Masyarakat (PKM) ini bertujuan untuk memetakan titik lokasi infrastruktur di Desa Ramang, Kabupaten Pulang Pisau, menggunakan teknologi GPS berbasis satelit. Metode pelaksanaan meliputi tiga tahap: persiapan, survei lapangan secara partisipatif dengan masyarakat, serta pengolahan dan analisis data menggunakan perangkat lunak SIG. Hasil kegiatan berhasil menghasilkan peta digital yang memetakan 15 titik infrastruktur utama yang terbagi dalam fasilitas pendidikan, kesehatan, ibadah, pemerintahan, dan lainnya. Peta ini memberikan data spasial yang akurat untuk mendukung perencanaan pembangunan, identifikasi kebutuhan perbaikan, dan pengambilan keputusan yang transparan dan partisipatif oleh pemerintah desa.
Efektifitas Pelaksanaan Program Kampus Mengajar Mandiri sebagai Usaha Peningkatan Pembelajaran Peserta Didik di SMKN 5 Palangka Raya Kecamatan Sabangau Fidayanti, Neny; Virgiyanti, Lisa; Sukmawatie, Neny; Sirat, Junisen Rolexlin; Anisa , Anisa
I-Com: Indonesian Community Journal Vol 6 No 1 (2026): I-Com: Indonesian Community Journal (Maret 2026)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v6i1.9353

Abstract

Program Kampus Mengajar Mandiri merupakan bagian dari kebijakan Merdeka Belajar Kampus Merdeka (MBKM) yang bertujuan untuk meningkatkan kompetensi mahasiswa sekaligus membantu sekolah dalam mengatasi permasalahan pembelajaran, khususnya di era digital. Kegiatan ini dilaksanakan di SMKN 5 Palangka Raya dengan fokus pada peningkatan literasi, numerasi, adaptasi teknologi dan administrasi sekolah. Metode pelaksanaan meliputi observasi, pendampingan pembelajaran, serta evaluasi berbasis kuisioner. Hasil kegiatan menunjukkan bahwa program ini efektif dalam meningkatkan keterampilan siswa, dengan tingkat kepuasan mencapai 85%. Program juga berdampak positif pada pengembangan keterampilan siswa seperti komunikasi, kepemimpinan dan kemampuan kolaborasi. Disimpulkan bahwa program Kampus Mengajar Mandiri efektif sebagai upaya peningkatan kualitas pembelajaran di sekolah vokasi.
Impact of Crush Zone on PPV in Claystone and Limestone Blasting with a Quantitative Approach Noveriady, Noveriady; Grunadi, Devin Tesario; Fidayanti, Neny
G-Tech: Jurnal Teknologi Terapan Vol 10 No 2 (2026): G-Tech, Vol. 10 No. 2 April 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i2.9200

Abstract

Blasting in open pit mines aims not only to achieve optimal rock fragmentation but also to control the impact of generated ground vibration. This study aims to analyze the influence of the crush zone on Peak Particle Velocity (PPV) in blasting activities involving claystone and limestone layers. Field data were collected from 25 blasting operations with varied parameters: number of blast holes 25–160, explosive charge per hole 50–111 kg, and measurement distance 504–537 m. The recorded actual PPV ranged from 1.221 to 3.404 mm/s. Statistical analysis was performed using power regression to model the relationship between Scaled Distance and PPV. The results show a strong inverse relationship between Scaled Distance and PPV, where higher blasting energy concentration forms a more intensive crush zone as the initial source of vibration. Blasting in limestone yields relatively higher PPV compared to claystone under similar Scaled Distance conditions, due to the elastic and more brittle properties of limestone. The model's prediction accuracy reached 91.5% on average. Practically, to maintain PPV at a safe level (<3.404 mm/s), it is recommended to keep the Scaled Distance ≥ 48.82 m/kg⁰·⁵ and limit the explosive charge per hole to the range of 50–90 kg, especially in limestone. This study confirms the key role of the crush zone and rock lithology in blasting vibration mechanisms, providing a basis for optimizing safe and sustainable blasting designs.
Analysis of Land Management Achievement Activities in the Reclamation Stage at PT. XYZ I Putu Putrawiyanta; Neny Fidayanti; Noveriady Noveriady; Novalisae Novalisae
G-Tech: Jurnal Teknologi Terapan Vol 10 No 2 (2026): G-Tech, Vol. 10 No. 2 April 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i2.9426

Abstract

Land reclamation is a crucial effort to restore former mining land so that it can function ecologically and economically again. XYZ conducts reclamation activities to meet applicable regulatory standards, therefore an internal assessment is required first before reporting to the ministry. This study aims to analyze the achievements of land management activities at the reclamation stage in PT. XYZ. The research method used is quantitative descriptive, with data collected through field observation and document analysis. The results of the study show that PT. XYZ has reached 25% of the reclamation plan in the first phase, with land management activities running for ±2 months. However, this study also identified obstacles such as less fertile soil conditions and high rainfall, as well as the absence of erosion and water control buildings made by the company, even though they are included in the reclamation activity plan. One of the settlement options that need to be done to achieve optimal reclamation success is to increase tools and working hours at the reclamation activity site, considering that the success of reclamation is the basis for company reporting and the ministry's assessment of the sustainability of the company's activities.
Identifikasi Kandungan Merkuri (Hg) dan Tingkat Keasaman (pH) pada Sungai Takaras Terdampak Aktifitas Pertambangan Emas di Kecamatan Rakumpit Lisa Virgiyanti; Amru Ash Shodaq; Fahrul Indrajaya; Neny Fidayanti; Neny Sukmawatie
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 2 (2026): : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i2.8530

Abstract

Takaras River is a river basin that is vulnerable to pollution, particularly from the mercury usage in small-scale gold mining. This study aims to identify water quality based on mercury (Hg)and pH levels in the Takaras River. Samples were taken at two locations using a purposive sampling method. Results showed indications of mercury use on former gold mining land around the Takaras River altought the mercury content level was below 0.075 µg/L or 0.00075 mg/L in sample 1 and 2. Based on the test results, the acidity level (pH) in the two water samples from Takaras River is 3.86 and 3.84 in sample 1 and 2, compared to the maximum pH quality standard of 6-9 for Class II water, it is concluded that the scale of acidity in Takaras River is very low, indicating that the water quality in the Takaras River is highly acidic, abnormal, and shows signs of serious pollution. The implications of low pH levels in the Takaras River can cause damage to the Takaras River ecosystem, a decline in soil quality and fertility, and an increase in heavy metal toxicity in the environment surrounding the river.
Analisis Geometri Peledakan Terhadap Hasil Fragmentasi Batuan Pada Pt. XYZ Jobsite ABC Kecamatan Kapuas Tengah Kabupaten Kapuas Provinsi Kalimantan Tengah Febriani, Nia; Noveriady; Neny Fidayanti; Yunida Iashania; Dody Ariyantho Kusma Wijaya
Jurnal Teknologi Sumberdaya Mineral (JENERAL) Vol. 6 No. 2 (2025)
Publisher : Program Studi Teknik Pertambangan Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jeneral.v6i2.60002

Abstract

PT. XYZ Jobsite ABC merupakan perusahan tambang batubara di Kalimantan Tengah yang kegiatan penambangannya dilakukan dengan metode Open Pit dan proses peledakan. Namun, hasil fragmentasi belum optimal karena masih di bawah target perusahaan (70-80% berukuran ≤ 50 cm), sehingga berdampak pada efisiensi kegiatan pemuatan. Penelitian ini bertujuan menganalisis geometri peledakan terhadap hasil fragmentasi aktual dan memberikan rekomendasi geometri peledakan yang sesuai. Metode penelitian yang digunakan adalah metode kuantitatif secara deskriptif. Hasil penelitian menunjukkan fragmentasi aktual pada claystone, siltstone dan sandstone belum sepenuhnya memenuhi target perusahaan. Fragmentasi peledakan masih terdapat persentase di bawah target yaitu claystone 67,82%, siltstone 61,73% & 67,54%, dan sandstone 47,17% & 62,42%. Perhitungan ICI-Explosives direkomendasikan geometri peledakan sebagai berikut: untuk claystone dan siltstone adalah Burden (B): 6,5 m, Spasi (S): 7,5 m, Kedalaman lubang ledak (L): 7 m, stemming (T): 3,4 m, subdrilling (J): 0,5 m, Kolom isian (PC): 3,6 m, Loading density (de): 27 kg/m, Powder factor (PF): 0,30 kg/m3, prediksi lolos ≤ 50 cm sebesar 70,71% dan 70,00%. Sedangkan sandstone adalah Burden (B): 6 m, Spasi (S): 7 m, Kedalaman lubang ledak (L): 7 m, stemming (T): 3,4 m, subdrilling (J): 0,5 m, Kolom isian (PC): 3,6 m, Loading density (de): 27 kg/m, Powder factor (PF): 0,35 kg/m3, prediksi lolos ≤ 50 cm sebesar 72,83%.