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All Journal Jurnal Ilmu Lingkungan JURNAL SAINS DAN TEKNOLOGI INDONESIA Jurnal Sains dan Teknologi Journal of Geoscience, Engineering, Environment, and Technology JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards)
Noviarso Wicaksono
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Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Physics

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SURVEI POTENSI PASIR KUARSA DI DAERAH KETAPANG PROPINSI KALIMANTAN BARAT Wicaksono, Noviarso
Jurnal Sains dan Teknologi Indonesia Vol. 11 No. 2 (2009)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.583 KB) | DOI: 10.29122/jsti.v11i2.824

Abstract

Ketapang area is one of lower part or southern sub-province of West Kalimanatan Province, which is located geographically between 108o40’ and 111o20’ in Longitude and between 0o20’ and 3o04’ in Latitude. This area has various of industrial mineral resources, for example quartz sand. Quartz sand or also called with white sand is the reasult of rock weathering that contents main mineral, such as quartz, and felsdpar. Then, the result of weathering is cleaned and transported by water or wind and deposited in the stream side, lake or sea. In this paper will be described concerning to locations, characteristics, and usages of quratz sand in Ketapang area, West Kalimantan Province. Based on chemical or laboratory analysis and interpretation, the quartz sands can be used as glass industry, cement industry material, and moulding industry.
Kajian Awal Produksi Fero Sulfat dari Slag Nikel Melalui Proses Pelindian Menggunakan Asam Sulfat Asep Nurohmat Majalis; Nur Vita Permatasari; Yeni Novitasari; Noviarso Wicaksono; Dedi Armin; Rizki Pratiwi
Jurnal Ilmu Lingkungan Vol 18, No 1 (2020): April 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.349 KB) | DOI: 10.14710/jil.18.1.31-38

Abstract

Produksi nikel dengan proses pirometalurgi menghasilkan hasil samping yaitu slag nikel. Slag nikel berdasarkan Peraturan Pemerintah Republik Indonesia No.101 tahun 2014 tentang Pengelolaan Limbah Bahan Berbahaya dan Beracun termasuk limbah bahan berbahaya dan beracun dari sumber spesifik khusus dengan kategori bahaya 2. Kajian pemanfaatan slag nikel cukup menarik dilakukan karena secara kimia slag nikel masih mengandung mineral dan logam-logam yang berharga, dan kandungan logam besi di dalam slag nikel adalah yang paling dominan. Kajian awal produksi fero sulfat dari slag nikel yang berpotensi dapat dimanfaatkan untuk proses pengolahan air limbah pertambangan bijih nikel yang biasanya mengandung kromium heksavalen dan total padatan terlarut telah dilakukan. Tahapan yang dilakukan yaitu karakterisasi slag nikel menggunakan alat XRD untuk mengetahui komposisi mineral utama, SEM-EDX untuk mengetahui morfologi dan kandungan unsur dominan  dan ICP-OES untuk mengetahui konsentrasi logam, dan selanjutnya pelindian slag nikel menggunakan asam sulfat pada variasi konsentrasi asam dan waktu pelindian. Hasil karakterisasi menunjukkan bahwa komposisi mineral utama slag nikel adalah fayalit, magnetit dan kristobalit dengan kandungan unsur dominan Fe, O, Si, S, Mg, Ni, dan Cu. Morfologi slag nikel adalah poligon tidak beraturan dan permukaannya halus serta padat. Kandungan logam Fe, Ni, Co, dan Cu dalam sampel slag nikel secara berturut-turut yaitu 37%, 0,479%, 0,361%, dan 0,0843%. Pelindian slag nikel yang dilakukan pada perbandingan volume pelindi terhadap berat slag nikel yaitu 1000 ml/500 gram, konsentrasi asam sulfat 0,2; 0,25; 0,3 dan 0,35 mol/L dan waktu pelindian 5 hari telah berhasil melarutkan Fe(II) dari slag nikel secara berturut-turut 2790; 1940; 4180 dan 5160 mg/L.
The Utilization of LiCSBAS for Deformation Monitoring in Geresa Segment of Matano Fault, Central Sulawesi, Indonesia Muhammad Razzaaq Al Ghiffari; Djoko Nugroho; Rachmat Ramadhan; Mochamad Rifat Noor; Noviarso Wicaksono; Agustan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 1 (2024): JGEET Vol 09 No 01 : March (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.1.14212

Abstract

Sulawesi is situated between the confluence of three plates, resulting in a very complex tectonic setting on the island. This has an impact on the occurrence of geological structures, including faults. One of them is the Matano Fault which consists of 6 segments (Kuleana Segment, Pewusai Segment, Matano Segment, Pamsoa Segment, Ballawai Segment, and Geresa Segment). The research area is located in Morowali Regency, covering the Geresa Segment. Morowali Regency recorded an earthquake with a magnitude of 5.7 in 2012. This indicates that deformation has occurred. Therefore, this study aims to identify the deformation velocity around the Geresa Segment area. The methods used are geological observation and satellite image data processing to obtain information on deformation rates. The geological field study includes aspects of geomorphology, geological structure, and the rock types distribution. Meanwhile, the processing of satellite image data in the form of InSAR is carried out through the LiCSBAS package tools that has been integrated with LiCSAR. The analysis results illustrate the difference in deformation velocity around the Geresa Segment area. The area which is composed of Tolaka formation and Ultramafic complex tends to uplift with a deformation rate of up to 17 mm/year. In addition, alluvium that covers the southeastarn part has a land subsidence of up to 7 mm/year.
Identification of Volcanic Breccia Formation Distribution in Relation to Groundwater Aquifer Potential Using 3D Resistivity Data Modelling Fatahillah, Hilmi El Hafidz; Ratna, Putri Natari; Septiawan, Fardy; Pratama, Ridho Nanda; Al Ghiffari, Muhammad Razzaaq; Wicaksono, Noviarso; Hidayat, Wahyu; Noor, Mochamad Rifat; Widiaputra, Taufiq; Aziz, Muhammad Luthfi; Ramadhan, Rachmat
Jurnal Lingkungan dan Bencana Geologi Vol 14, No 3 (2023)
Publisher : Badan Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34126/jlbg.v14i3.484

Abstract

Electrical resistivity tomography (ERT) method has been widely used in environmental surveys including hydrogeology study to provide images of the subsurface resistivity distribution. In this study, ERT survey using Wenner - Schlumberger electrode configuration was conducted to investigate the distribution of groundwater aquifer potential in the area dominated by various weathered volcanic rocks that unconformably overlaid limestone formation. The resistivities were measured using ARES resistivity meter each with total of 48 electrodes. The resistivity data were then processed using the robust inversion method that is more optimal to characterize sharp lithological boundary transitions observed in the study area. The resistivity value of the inverted model is interpreted into three different lithologies, namely soil (1.82-5 Ωm), volcanic breccias (5-20 Ωm) and limestone (>20 Ωm). This lithological interpretation was confirmed by borehole cutting report from the nearby well, regional geological map, and direct geological observation. Further, the inverted ERT section along with geological observation indicated volcanic breccias as an aquifer potential in the study area. The 2D resistivity cross-section is then gridded to obtain a 3D model of the potential aquifer geometry. From the model, the volume of volcanic breccia which is suspected as an potential aquifer layer is estimated at 122,392,828 m3.
The The Investigation of Mercury in an Abandoned Artisanal and Small-Scale Gold Mining (ASGM) Nurohmat, Asep Nurohmat; Nicko Widiatmoko S.Si., M.Si.; Yeni Novitasari; Noor, Mochamad Rifat; Noviarso Wicaksono; R Arif Suryanegara
JST (Jurnal Sains dan Teknologi) Vol. 13 No. 3 (2024): Oktober
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v13i3.84239

Abstract

This paper Mercury in artisanal and small-scale gold mining (ASGM) is a major environmental and health issue. Since mercury in the environment is persistent, mapping and investigating mercury in abandoned ASGM areas is urgent to mitigate and minimize mercury pollution. This research was conducted to map and explore the presence of mercury in abandoned ASGM in Kalirejo Village, Kulon Progo District of Yogyakarta. Field exploration has shown that the abandoned ASGM were in a riverside area, close to settlement, surrounded by farming and plantations. Mercury analysis using the thermal decomposition method showed that four of five sediment samples contained Hg above 0.3 mg/kg, which indicated that the sediments at the four sampling points were contaminated. Mercury analysis using ICP OES spectrometry showed that three of six surface water samples contained Hg above 0.005 mg/L, indicating that Hg contaminated the surface waters at the three sampling points. Because the abandoned ASGM is close to residential areas, the riverside, and surrounded by community farming and plantation areas, residents may be exposed to mercury.
Co-Authors Agustan Al Ghiffari, Muhammad Razzaaq Asep Nurohmat Majalis Aziz, Muhammad Luthfi Dedi Armin Djoko Nugroho Fatahillah, Hilmi El Hafidz Mochamad Rifat Noor Muhammad Razzaaq Al Ghiffari Nicko Widiatmoko S.Si., M.Si. Noor, Mochamad Rifat Nur Vita Permatasari Nurohmat, Asep Nurohmat Pratama, Ridho Nanda R Arif Suryanegara RACHMAT RAMADHAN Rachmat Ramadhan, Rachmat Ratna, Putri Natari Rizki Pratiwi Septiawan, Fardy Taufiq Widiaputra, Taufiq Wahyu Hidayat Yeni Novitasari