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PENGGUNAAN FINE COAL SEBAGAI CAMPURAN PUPUK UREA DAN PENGARUHNYA TERHADAP PERTUMBUHAN TANAMAN KANGKUNG DARAT (Ipomoea reptans) Suryaputra, August; Nursanto, Edy; Winarno, Eddy
Jurnal Teknologi Mineral dan Batubara Vol 20 No 2 (2024): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol20.No2.2024.1549

Fine coal is coal with a size of less than 0.5 mm which comes from processing waste or from avalanches during transportation using a conveyor belt. The aim of this research is to utilize fine coal as a mixture of plant fertilizer based on plant growth. There are four fertilizer treatments, namely 100% urea (UTB); 25% urea : 75% fine coal (UB13); 50% urea : 50% fine coal (UB11); and 75% urea: 25% fine coal (UB31) with nitrogen values of 46%, 19.86%, 32.51% and 20% respectively. The average growth results in the form of number of leaves for each treatment were 10.6 strands, 10.9 strands, 9.8 strands and 8.5 strands, respectively. The average plant height in each treatment was 16.2 cm, 16.8 cm, 13.5 cm and 13.8 cm, respectively. The average nitrogen use efficiency (NUE) values for each treatment were 27%, 19.6%, 25.9% and 10.5%, respectively. Plant growth experiments using a mixture of urea and fine coal fertilizer for number of leaves and plant height showed good results in the UB13 treatment, while NUE showed the best results in the UTB treatment.

PENGGUNAAN FINE COAL SEBAGAI CAMPURAN PUPUK UREA DAN PENGARUHNYA TERHADAP PERTUMBUHAN TANAMAN KANGKUNG DARAT (Ipomoea reptans) Suryaputra, August; Nursanto, Edy; Winarno, Eddy
Jurnal Teknologi Mineral dan Batubara Vol 20 No 2 (2024): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol20.No2.2024.1549

Fine coal is coal with a size of less than 0.5 mm which comes from processing waste or from avalanches during transportation using a conveyor belt. The aim of this research is to utilize fine coal as a mixture of plant fertilizer based on plant growth. There are four fertilizer treatments, namely 100% urea (UTB); 25% urea : 75% fine coal (UB13); 50% urea : 50% fine coal (UB11); and 75% urea: 25% fine coal (UB31) with nitrogen values of 46%, 19.86%, 32.51% and 20% respectively. The average growth results in the form of number of leaves for each treatment were 10.6 strands, 10.9 strands, 9.8 strands and 8.5 strands, respectively. The average plant height in each treatment was 16.2 cm, 16.8 cm, 13.5 cm and 13.8 cm, respectively. The average nitrogen use efficiency (NUE) values for each treatment were 27%, 19.6%, 25.9% and 10.5%, respectively. Plant growth experiments using a mixture of urea and fine coal fertilizer for number of leaves and plant height showed good results in the UB13 treatment, while NUE showed the best results in the UTB treatment.

The Potential of Biochar for Heavy Metal Adsorption in Acid Mine Drainage Based on Literature Review Simamora, Eprilia; Nurcholis, Mohammad; Ardian, Aldin; Ernawati, Rika; Winarno, Eddy
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.v5i1.6772

Incorporating organic materials that contain biochar is gaining traction as a research area for the cleanup of wastewater contaminated with heavy metals. This study intends to explore the potential of biochar-based materials in removing heavy metals from water sources, with a particular emphasis on rehabilitating aquatic environments affected by mining waste. Identifying appropriate literature studies in collecting research data from various scientific publications was used to understand the topic. Several biochar manufacturing processes are generated through pyrolysis, gasification, and Hydrothermal carbonization (HTC). In this field, studies revealed that using most biochar can achieve relatively high metal removal. Research findings indicate that Cu, Zn, Cd, Pb, Ni, Cr, Co, As, Ag, Fe, Al, and Mn are the metal ions that have received the most attention in this field. This study highlights explicitly the effectiveness of biochars made from orange peel, nutshell, compost, rice husk, oak wood, used coffee grounds, durian bark, Phragmites australis corn cob, dregs of cascara, and hickory wood. The findings show that biochars from these materials, especially those produced at high pyrolysis temperatures (≥500°C), can achieve metal removal efficiencies above (≥90%). Various factors can influence the effectiveness of biochar in removing heavy metal ions, including the pH of the contaminated water, the amount of biochar used, the initial concentration of heavy metals, the properties of the biochar, and the specific forms or speciation of the metals. Biochar's ability to draw in and retain metal ions can be influenced by its characteristics, including its surface area and pore sizes. This study highlights the need for more research in this field going forward. It gives a general review of the use of biochar in removing heavy metals from water, particularly contamination in Acid Mine Drainage (AMD).

EVALUASI PERBANDINGAN KADAR BIJIH NIKEL ANTARA DATA BLOCK MODEL DENGAN AKTUAL PENAMBANGAN PT. BUKIT MAKMUR ISTINDO NIKELTAMA, PIT C BLOK KEUNO, KABUPATEN MOROWALI UTARA PROVINSI SULAWESI TENGAH Anggara, Adi Surya Tirta; Winarno, Eddy; Nusanto, Gunawan; Winda, Winda; Saputro, Kristanto Jiwo
Jurnal Teknologi Pertambangan Vol. 10 No. 1 (2024): Juli 2024
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jtp.v10i1.13242

PT Bukit Makmur Istindo Nikeltama (PT BUMANIK) merupakan perusahaan tambang yang melakukan aktivitas penambangan pada bahan galian nikel Laterit di Kabupaten Morowali Utara. Hasil peninjauan sejarah data rekonsiliasi kadar nikel dan tonase didapatkan sebuah perbedaan yang signifikan antara data hasil rancangan dan data aktual penambangan. Penelitian ini bertujuan menganalisis perbandingan antara data block model dan data aktual penambangan untuk mencari faktor-faktor yang mempengaruhi perbuahan kadar nikel dan tonase. Berdasarkan hasil penelitian didapatkan kenaikan tonase dari hasil block model terhadap tumpukan ETO sebesar 20.46% dan terjadi penurunan kadar nikel sebesar 1,96% Ni dari data block model dibandingkan dengan hasil uji laboratorium 1,69% Ni, dengan perbedaan 12,89%. Kenaikan tonase dipengaruhi oleh ukuran block model dan adanya material bukan ore yang tercampur pada proses penambangan. Terjadinya penurunan kadar dipengaruhi oleh material ore yang sangat heterogen, terdapat material bukan ore yang ikut tertambang dan terangkut ke ETO. Berdasarkan analisis tersebut, perlu dilakukan pengkajian ulang terhadap ukuran block pada rancangan yang telah dibuat dan melakukan evaluasi pada tahapan penambangan dan pengambilan sampel untuk meminimalkan terjadinya perubahan tonase dan kadar nikel yang signifikan.

RANCANGAN TEKNIS KEMAJUAN PENAMBANGAN ANDESIT UNTUK MEMENUHI TARGET PRODUKSI BULANAN TAHUN 2024 DI QUARRY MALOKO PT SOLUSI BANGUN BETON Irfan, Novandi; Winarno, Eddy; Ernawati, Rika; Nursanto, Edy; Aji, Dwi Poetranto Waloejo; Sudaryanto, Sudaryanto
Jurnal Teknologi Pertambangan Vol. 10 No. 1 (2024): Juli 2024
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jtp.v10i1.13250

PT Solusi Bangun Beton merupakan perusahaan yang bergerak di bidang industri penambangan dan peremukan batu andesit. Kegiatan penambangan pada PT Solusi Bangun Beton dilakukan dengan sistem tambang terbuka dengan metode quarry. Saat ini kegiatan penambangan dilakukan di quarry maloko pada bench D1 (Elevasi 97 Mdpl), namun kegiatan penambangan terkendala karena pada area bench D1 masih terdapat area bench D0 (Elevasi 107 Mdpl) yang masih belum terbongkar karena adanya tumpukan abu batu dengan ketinggian berkisar antara 10-15 meter pada bench D0 tersebut, sehingga perlu dipindahkan untuk selanjutnya dilakukan pencucian. Penelitian ini bertujuan untuk membuat rancangan kemajuan penambangan dari bulan Maret hingga bulan Desember 2024. Pembuatan rancangan penambangan mempertimbangkan target produksi perusahaan yaitu sebanyak 1.634.535 ton dan geometri lereng yang telah ditetapkan perusahaan, yaitu lebar lereng tunggal 5 meter, tinggi lereng tunggal 10 meter dan sudut lereng tunggal 80º. Sehingga didapatkan jumlah andesit tertambang total pada bulan Maret hingga Desember 2024 sebanyak 1.674.922 ton. Rancangan geometri jalan angkut dibuat berdasarkan alat mekanis terbesar yang melalui jalan yakni Komatsu HD 465. Dari perhitungan didapatkan geometri jalan angkut pada jalan lurus memiliki lebar minimum 19 meter, pada tikungan 23 meter, superelevasi 0,04 mm/m dan cross slope 40 mm/m. Grade jalan angkut memiliki kemiringan antara 7,3% hingga 10,3%. Pada penambangan andesit alat gali-muat yang digunakan adalah Hitachi Zaxis 470 LC dengan kapasitas bucket 3,2 m3 dan untuk alat angkut yang digunakan adalah Komatsu HD 465 dengan kapasitas vesssel 34,2 m3. Pada penambangan andesit, jumlah kebutuhan alat mekanis yang digunakan setiap bulannya memiliki nilai yang berbeda. Dalam kondisi aktual di lapangan, alat yang tersedia harus digunakan karena setiap alat memiliki operator tetap, sehingga jumlah alat mekanis pada kegiatan penambangan andesit yang digunakan adalah yang tertinggi yaitu untuk alat gali-muat sebanyak unit 2 unit dan alat angkut 4 unit.

DENTIFICATION OF LAND MOVEMENTS BASED ON GEOGRAPHIC INFORMATION SYSTEMS AND DIPOLE-DIPOLE CONFIGURATION RESISTIVITY METHOD FOR LANDSLIDE DISASTER MITIGATION IN THE SELOHARJO, PUNDONG, BANTUL, YOGYAKARTA SPECIAL REGIONS Wikranta Setiawan, Ketut Arya; Nurkhamim, Nurkhamim; Winarno, Eddy
Jurnal Teknologi Pertambangan Vol. 10 No. 2 (2025): Januari 2025
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jtp.v10i2.14546

Seloharjo Village, Pundong, Bantul is an area that has geographical conditions in the form of mountains and hills, making the area prone to landslides. Landslides are geological disasters where masses of soil and rock move down slopes which are influenced by landslide parameters in the form of rainfall, slope, vegetation, seismicity and geology. A slip plane is a rock layer that has relatively lower permeability compared to the layer above it so that it can become a plane for the movement of soil and rock masses above it. Identification of the landslide slip plane was carried out using the dipole-dipole configuration geoelectric method with a path length of 260 m on track 1 and 220 m on track 2. The results of geoelectrical measurements show high subsurface resistivity values with a value range of 158 - 280 Ωm which is thought to be limestone material as a land sliding area and low resistivity values with a value range of 5 - 150 Ωm which is a layer of alluvial sediment as landslide material. Alluvial deposits in the research area become landslide material with the sliding surface being a layer of limestone, because the permeability value of limestone is smaller than that of alluvial deposits. Based on a review of the geographic information system in the form of a landslide susceptibility map obtained from the parameters of landslide events, it shows that the research area has a high rainfall value of 2,629 mm/year, a slope slope of 25 - 45%, vegetation with strong roots and dense leaves, level high earthquake susceptibility, and geological conditions in the form of a slip plane in the direction of the slope, from these parameters the research area has a high level of landslide susceptibility. On track 1, the slope direction of the slip plane is found to be in the same direction as the slope of the slope with high landslide potential. Meanwhile, on route 2, the direction of the slope of the slip surface is opposite to the direction of the slope of the slope with low landslide potential. The results of the integration of geophysical data with GIS show that route 1 has a high landslide potential in terms of the analysis of the slip plane in the direction of the slope as well as the geographic information system which shows that the research area has a high level of landslide proneness so that mitigation is needed in the form of creating an evacuation route.

RESOURCE ESTIMATION OF LATERITE NICKEL USING INVERSE DISTANCE WEIGHTING METHOD CASE STUDY OF NORTH KONAWE DISTRICT, SOUTHEAST SULAWESI PROVINCE Sofiannur, Sofiannur; Winarno, Eddy; Amri, Nur Ali; Jalil, Abdul
Journal TECHNO Vol. 9 No. 1 (2023): Mei
Publisher : Universitas Pembangunan Nasional Veteran Yogayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/journal techno.v9i1.10507

The mining industry's estimation of mineral resources is a stage that is carried out to determine the quantity of a mineral. This study aimed to determine the selection of laterite nickel resource estimation methods. The determination of the estimation method is based on the value of the coefficient of variance and the geological conditions of the mineral deposits. This research area is in Lasolo Kepulauan District, North Konawe Regency at PT—x block south. Statistical analysis found that the coefficient of variance in the limonite zone was 0.19, the saprolite area was 0.37, and it was included in moderate geological geometry conditions. The estimation method used in this research is the inverse distance weighting method. The estimation results in the limonite zone are 3,398 tons with an average Ni content of 0% Ni, 448,037 tons with a moderate Ni content of 1.32%, 588,256 tons with an average Ni content of 1.65%, and 14,912 tons with an average Ni content of 2.01%. In comparison, in the saprolite zone, there are 174.46 3 tons with a middle grade of Ni of 0.84%, 408,896 tons with an average quality of Ni of 1.26%, 788,818 tons with moderate content of Ni of 1.77%, 771,709 tons with a middle grade of Ni of 2.21%, 172,236 tons with an average quality of Ni of 2.63%, and 5,215 tons with an average rate of Ni of 3.04 %.

The Effect of Purun Tikus (Eleocharis dulcis) and Organic Material Addition in Constructed Wetland Systems on the Improvement of Acid Mine Drainage Quality Simamora, Eprilia; Nurcholis, Mohammad; Ardian, Aldin; Ernawati, Rika; Winarno, Eddy
Jurnal Mineral, Energi dan Lingkungan Vol 8 No 2 (2024): Jurnal Mineral, Energi dan Lingkungan Volume 8, No. 2 Tahun 2024
Publisher : Fakultas Teknologi Mineral, Universitas Pembangunan Nasional (UPN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmel.v8i2.14694

Coal mining activities often cause environmental challenges, one of which is acid mine drainage (AMD) with low pH and elevated concentrations of heavy metals and suspended solids. This study aimed to assess water quality improvement through a constructed wetland system using Purun tikus (Eleocharis dulcis) and palm oil empty fruit bunch compost (TKKS). Laboratory-scale experiments were conducted with five treatment variations and three replications over a 20-day retention period. Results indicated that the media combination, with or without limestone addition, significantly altered the water quality parameters. The pH increased from 3.35 to 7.76; TSS decreased from 1,373.3 mg/L to 151 mg/L; Fe decreased from 33.15 mg/L to 2.68 mg/L; and Mn decreased from 7.06 mg/L to 0.45 mg/L over 20 days. These results indicate the potential of constructed wetlands using native plants and organic materials as an environmentally friendly strategy for treating mining wastewater.

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