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All Journal Jurnal Pertambangan Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geomine Journal Of Chemical Process Engineering (JCPE) Jurnal GEOSAPTA Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Abdi Dosen : Jurnal Pengabdian Pada Masyarakat International Journal of Applied Sciences and Smart Technologies Matriks Teknik Sipil Journal of Geology and Exploration Journal Of Chemical Process Engineering Journal of Engineering Science and Technology Applications
Nurliah Jafar
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health Social Sciences

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Analysis of Blasting Geometry on Blasting Production Results at PT Semen Bosowa Maros Abdul Salam Munir; Nur Asmiani; Nurliah Jafar; Muhamad Hardin Wakila; Jihan Fitri Ramdita Putri Gouw
International Journal of Applied Sciences and Smart Technologies Volume 05, Issue 02, December 2023
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v5i2.6423

Abstract

Limestone mining for cement plants uses a blasting method to break the material. Blasting production is considered successful when it can achieve production targets based on tonnage of uncovered rock, efficient use of explosives, grain size or rock fragmentation, and environmental impact. This research aims to analyze the blasting geometry on the production results at the research location by knowing the initial design, the actual blasting geometry, and the geometry recommendation using the C.J. Konya method. In addition, researchers also know the explosives used, the production results in the form of material fractionation using the Kuz-Ram method and the tonnage of uncovered rocks. The initial design with a burden of 3.4 m, spacing of 3.4 m, hole depth of 5.9 m, and ANFO explosives per hole of 33 kg produced 147.31 tonnages. The actual geometry with a burden of 1.7 m, spacing of 3.5 m, hole depth of 6.0 m and ANFO explosives per hole of 26.73 kg produced a 77.11 tonnage. The actual geometry resulted in a blasting production of 6,941 tonnes per day, which did not meet the company's production target 10,639. The fragmentation calculation results obtained an average size in the field of 15.29 cm, which meets the required screening or sieve criteria of 0.80 - 1.00 m. The size of the fragments also follows the sieve calculation using the Kuz-Ram method, with a 100 cm sieve passing only 0.01%. Based on this, the company is recommended to make geometry changes to achieve the production tonnage target that has been set.
Characteristics of Host Rocks Manganese of The Anabanua Village Barru District South Sulawesi Province, Indonesia Hasbi Bakri; Nurliah Jafar; Jamil Jumadra; Firman Nullah Yusuf; F., Firdaus
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 3 (2024): JGEET Vol 09 No 03 : September (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.3.12833

Abstract

One of the prospects for a wealth of geological resources that can be utilized for the benefit of mankind is manganese metal mineral resources. In Anabanua Village, especially at the research location, there is an indication of manganese mineralization that the type of rock carrying the mineralization is not yet known. The purpose of this study was to determine the chemical elements of metallic minerals, mineralogy, and types of mineralization-carrying rocks, as many as three samples in the form of chunks, which were analyzed using megascopic analysis methods identifying the texture and structure of carrier rocks, XRD (X-Ray Diffraction) analysis minerals, and XRF (X-Ray Fluorescence). The characteristics of manganese mineralization carrier rocks consist of metallic elements Mn (0.046%-20.455%), Fe (1.555%-3.673%), and nonmetallic elements SiO2 (11.403%-48.165%), K2O (0.398%-4.177%). Mineralogy of manganese mineralization carrier rocks are roeblingite (Pb2Ca6Mn2+(Si3O9)2(SO4)2(OH)2·4H2O), rhodonite (CaMn3Mn[Si5O15]), diopside (CaMgSi2O6), calcite (CaCO3), kieserite (Al, Ga)2(GeO4)(OH)2), zeolite (Mn2O.Al2O3.xSiO .yH2O), and palygorskite ((Mg, Al)2 Si4O 10(OH)·4H2O). Manganese mineralization host rocks are determined by referring to the SiO2 (%weight) and K2O(%weight) diagrams to produce basalt igneous rock types.
Analisis Unsur Endapan Bauksit Menggunakan X-RAY Fluorescence (XRF) PT. ANTAM TBK Unit Geomin Daerah Kenco Kabupaten Landak Provinsi Kalimantan Barat Nurliah Jafar
Journal of Chemical Process Engineering Vol. 2 No. 1 (2017): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v2i1.848

Abstract

Bauksit terbentuk dari batuan yang mempunyai kadar aluminium (Al) nisbi tinggi, kadar besi (Fe) rendah dan tidak atau sedikit mengandung kuarsa (SiO2). Bentuknya menyerupai tanah liat/cellular dan kadang-kadang berstruktur pisolitik. Secara makroskopis bauksit berbentuk amorf, kekerasan bauksit berkisar antara 1-3 Skala Mohs dan berat jenis berkisar antara 2,5-2,6. Bauksit merupakan bahan heterogen yang mempunyai mineral dengan susunan terutama dari oksida aluminium, yaitu berupa mineral gibbsite (Al2O3.3H2O), mineral boehmit (Al2O.3H2O), mineral diaspor (Al2O3.3H2O). Secara umum bauksit layak tambang mengandung Al2O3 sebanyak 45-65%, SiO2 1-12%, Fe2O3 2-25%, TiO2 >3%, dan H2O 14-36%. Persentase unsur bauksit akan menentukan langkah selanjutnya seperti perhitungan cadangan dan perancangan metode penambangan. Kandungan bauksit pada daerah penelitian adalah aluminium (Al2O3), besi (Fe2O3), silika (SiO2) dan titanium (TiO2).
Pemanfaatan Asap Cair Dari Blending Limbah Biomassa Cangkang Sawit Dan Tempurung Kelapa Dalam Secara Pirolisis Menjadi Insektisida Organik Mustafiah; Nurliah Jafar
Journal of Chemical Process Engineering Vol. 2 No. 1 (2017): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v2i1.868

Abstract

Pengolahan blending limbah biomassa cangkang sawit dan tempurung kelapa dalam secara pirolisis menghasilkan produk asap cair sebagai produk utama dan chart, arang sebagai produk samping. Dimana asap cair imi yang memiliki kandungan utama yaitu senyawa fenol, karbonil dan asam. tujuan untuk Mengetahui presentase rendemen asap cair yang dihasilkan setiap gram limbah biomassa cangkang sawit dan tempurung kelapa dalam, karakteristik senyawa yang terdapat dalam asap cair pada limbah biomassa cangkang sawit dan tempurung kelapa dalam, Mengetahui efektifitas asap cair sebagai intektisida organik. Preparasi sampel cangkang sawit dan tempurung kelapa dalam kemudian diblending dengan variable dan rasio terstentu. Selanjutnya metode pirolisis dengan variable suhu pirolisis. Asap cair dan chart kemudian asap cair diuji kimia dan fisik selanjutnya diaplikasikan untuk pembasmian serangga. Asap cair dari sampel blending limbah biomassa cangkang sawit dan tempurung kelapa dalam bahwa persen rendemen pada asap cair dengan 1000 gram sampel hasilnya terus meningkat secara signifikan di mana semakin banyak komposisi tempurung kelapa maka semakin besar persen rendemennya. Asap cair ini digolongkan asap cair grade C, yang berwarna coklat pekat dan berbau asap cukup keras. Karakteristik produk asap cair (viskositas, pH, massa jenis dan kadar asam asetat) yang dihasilkan dari blending limbah biomassa cangkang sawit dan tempurung kelapa dalam dengan rasio massa 0 : 100, 25:75, 50:50, 75:25, dan 100:0 dimana sampel tersebut telah memenuhi standar mutu asap cair spesifikasi jepang. Produk pada sampel cangkang sawit dan tempurung kelapa dalam memiliki efektifitas asap cair sebagai intektisida organik sangat baik dapat mematikan serangga/hama dengan waktu yang singkat.
COMMUNITY EMPOWERMENT IN MANAGING THE POTENTIAL OF MINING MATERIALS Nur Asmiani; Nurliah Jafar; Sitti Ratmi Nurhawaisyah; Nijushiho Manik
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 8 No. 4 (2024): DESEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v8i4.2482

Abstract

Pattappa Village is a village that has the potential for minerals. However, in developing its potential, residents tend to ignore it because they do not know how to manage it. Residents only know that to manage it, they must attract investors. The uniqueness of the mineral excavation potential can be encouraged from a tourism perspective. This can ensure sustainability compared to mining, which has a management life. Community empowerment activities aim to provide an understanding of the potential of mineral excavation-based tourism owned by the village. The implementation is by conducting socialization, filling out questionnaires, and discussing the evaluation of questionnaire results. The activity results showed a paradigm shift in villagers’ development of tourism potential. Residents have the awareness to manage the potential of minerals in geotourism.
Analisis Karakteristik Aspal Berdasarkan Batuan Reservoir Kabupaten Buton Provinsi Sulawesi Tenggara: Analysis of Asphalt Characteristics Based on Reservoir Rocks in Buton Regency, Southeast Sulawesi Province Sukardin, Sukardin; Widodo, Sri; Nurliah Jafar
Journal of Engineering Science and Technology Applications Vol. 1 No. 2 (2023): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v1i2.183

Abstract

Factors influencing the content of asphalt is the process of formation, moisture content and the type of reservoir rocks, then to do the research on the characteristics of asphalt based on reservoirnya rocks. The purpose of this research is to know the physical nature of Asphalt Buton Rock based on reservoirnya. The method used is the sokhlet method. The data used is data of rocks reservoir site I and II, the physical properties of the data of the asphalt. Of research results obtained at the location I have rocks limestone reservoir with poor porosity features have higher levels of bitumen (23-47%), the asphalt is more dense and hard, CaCO3 content was higher (86,66%) whereas in a location that has a reservoir rock II sandstones with physical characteristics of good porosity have lower levels of bitumen (20-40%), the asphalt is relatively more malleable, a higher SiO2 content (17,06). From the results it can be concluded that the physical nature of asphalt location I have poor porosity and physical properties II location has good porosity, on the location of research levels obtained 20-47%.
Co-Authors Abdul Salam Munir Abdullah Kilian Adi Maulana Agung Fiqriansyah Agus A Budiman Agus Ardianto Budiman Alam Budiman Thamsi Alfian Nawir Andi Artiningsih Andi Fadli Heriansyah Andi Fahdli Heriansyah Ansariah Ansariah Anshariah Anshariah Anshariah, Anshariah Antonina Pri Martireni Arifin, Mubdiana Bakri, Hasbi Bakri, Suriyanto Citra Aulian Chalik Dewy Kumala Tehuayo Djamaluddin Djamaluddin F. Firdaus Firdaus F Firman Firman Firman Nullah Yusuf Habibie Anwar Habiebie Anwar Harwan Harwan Hasbi Bakri Hendra Wahid Idris Juradi, Muhammad Iis Nursari Irzal Nur, Irzal Jamil Jumadra Jihan Fitri Ramdita Putri Gouw Moh. Salman Said Mohammad salman said Muh. Ajwad Muhammad Idham Farid Mulhadramy Mulhadramy Muliadi Muliadi Mustafiah Nijushiho Manik Nur Asmiani Nurhawaisyah, Sitti Ratmi Prasetyawati Umar, Emi Rahayu Achmad Rizky Nurul Aulia Sitti Ratmi Nurhawaisyah Sitti Riatmi Nurhawaisyah Sri Wahyuni Sri Widodo Sri Widodo Sri Widodo Sukardin, Sukardin Wakila, Muhammad Hardin