Article Per Year (5 Year)
p-Index From 2021 - 2026
1.554
P-Index
This Author published in this journals
All Journal Jurnal Pertambangan Jurnal Ilmu Teknik Jurnal Teknologi Mineral dan Batubara Indonesian Mining Journal JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Jurnal Locus Penelitian dan Pengabdian Jurnal Teknologi Mineral dan Batubara Indonesian Mining Journal Jurnal Keilmuan dan Aplikasi Teknologi Industri
restu juniah, restu
universitas Sriwijaya
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Public Health Social Sciences Transportation

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 15 Documents
Search

 1   2 
PENILAIAN TEKNIS DAN EKONOMIS KUALITAS PENGELOLAAN LINGKUNGAN STOCKPILE BATUBARA UNTUK LINGKUNGAN BERKELANJUTAN Juniah, Restu; Ambarita, Novitasari; Syarifudin; Zakir, Syaifudin; Rahmi, Hisni; Amanda, Ridho Rizky
Indonesian Mining Journal Vol 28 No 1 (2025): Indoneisan Mining Journal, April 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol28.No1.2025.1595

Abstract

Coal mining has positive impacts in the form of increasing the national economy and people's income. However, it also has negative impacts, including the decrease of environmental quality such as air, soil, and noise, as well as the potential for spontaneous combustion. The research was conducted to assess the technical and economic aspects of environmental management at coal stockpiles in the Tarahan Port Unit of PT Bukit Asam Tbk to support environmental sustainability. The technical assessment of stockpile environmental management was carried out by comparing observation results with the Environmental Management and Monitoring Plan Document (RKL/RPL) and Indonesia’s applicable Environmental Quality Standards. The economic assessment focused on the cost of environmental monitoring and management by observing the discrepancies between the planned and realization in the first and second quarters. The technical assessment results show that environmental management at the stockpile has been implemented effectively. Air quality parameters and noise levels remain below the established standards, soil quality is classified good as indicated by vegetation growth, and no spontaneous combustion occurred during the observation period. The economic assessment revealed a discrepancy of 2.02% between the planned cost of IDR 121,183,548 to the actual realization of IDR 123,641,668. This increase was attributed to the construction of a dust reduction system and an operational chimney for the 2X8 MW Steam Power Plant, through the use of Electrostatic Precipitators. The study recommends a detailed inventory of environmental cost plans and potential cost escalation to anticipate risk factors. It also highlights the need for regular maintenance of machines that are known to frequently produce emissions. These efforts are expected to reduce the emissions and lower the costs of environmental management and monitoring.
PENILAIAN TEKNIS DAN EKONOMIS KUALITAS PENGELOLAAN LINGKUNGAN STOCKPILE BATUBARA UNTUK LINGKUNGAN BERKELANJUTAN Juniah, Restu; Ambarita, Novitasari; Syarifudin; Zakir, Syaifudin; Rahmi, Hisni; Amanda, Ridho Rizky
Indonesian Mining Journal Vol 28 No 1 (2025): Indoneisan Mining Journal, April 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol28.No1.2025.1595

Abstract

Coal mining has positive impacts in the form of increasing the national economy and people's income. However, it also has negative impacts, including the decrease of environmental quality such as air, soil, and noise, as well as the potential for spontaneous combustion. The research was conducted to assess the technical and economic aspects of environmental management at coal stockpiles in the Tarahan Port Unit of PT Bukit Asam Tbk to support environmental sustainability. The technical assessment of stockpile environmental management was carried out by comparing observation results with the Environmental Management and Monitoring Plan Document (RKL/RPL) and Indonesia’s applicable Environmental Quality Standards. The economic assessment focused on the cost of environmental monitoring and management by observing the discrepancies between the planned and realization in the first and second quarters. The technical assessment results show that environmental management at the stockpile has been implemented effectively. Air quality parameters and noise levels remain below the established standards, soil quality is classified good as indicated by vegetation growth, and no spontaneous combustion occurred during the observation period. The economic assessment revealed a discrepancy of 2.02% between the planned cost of IDR 121,183,548 to the actual realization of IDR 123,641,668. This increase was attributed to the construction of a dust reduction system and an operational chimney for the 2X8 MW Steam Power Plant, through the use of Electrostatic Precipitators. The study recommends a detailed inventory of environmental cost plans and potential cost escalation to anticipate risk factors. It also highlights the need for regular maintenance of machines that are known to frequently produce emissions. These efforts are expected to reduce the emissions and lower the costs of environmental management and monitoring.
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 Peningkatan Kadar Pasir Silika dengan Menggunakan Magnetic Separator untuk Memenuhi Kebutuhan Industri Kaca Pengaman Syahrani, Achmad Muharram; Juniah, Restu; Syarifudin; Rahmi, Hisni; Zakir, Syaifudin
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol. 24 No. 1 (2024): Regular Issue
Publisher : SEKOLAH TINGGI TEKNOLOGI INDUSTRI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/gh9wja94

Abstract

Pasir silika merupakan salah satu bahan baku yang digunakan untuk industri kaca pengaman dengan kadar 99 % berdasarkan Standar Nasional Indonesia untuk industri kaca pengaman. Kadar SiO2 di Indonesia belum mencapai standar dalam industri kaca pengaman dimana rata-rata 90% sehingga perlu dilakukan proses pengolahan terhadap feed pasir silika untuk meningkatkan kadar SiO2. Penelitian bertujuan untuk menganalisis pengaruh faktor - faktor seperti lebar lubang umpan, lama waktu feed dan kecepatan putar magnet terhadap kualitas pasir silika, menganalisis kualitas pasir silika pada feed sebelum dilakukan pemisahan dengan alat magnetic separator; dan menganalisis kualitas pasir silika yang dihasilkan sesuai dengan Standar Nasional Indonesia industri kaca pengaman. Analisis peningkatan kualitas pasir silika melalui proses pengolahan menggunakan alat magnetic separator dengan variasi lebar lubang umpan yang digunakan 10 cm, 15 cm, dan 20 cm; variasi waktu feed yang digunakan 1 menit, 1,5 menit, dan 2 menit; variasi kecepatan putar magnet yang digunakan 100 rpm, 200 rpm, dan 300 rpm. Hasil penelitian menunjukkan bahwa hasil kadar SiO2 tertinggi dengan mengggunakan variasi lebar lubang umpan 10 cm, lama waktu feed 2 menit, dan kecepatan putar magnet 100 rpm yaitu dengan kadar konsentrat SiO2 sebesar 99,85% dan nilai recovery sebesar 82,12%.
Optimalisasi Produktivitas Alat Gali Muat dan Alat Angkut pada Penambangan Pozolan PT Sayang Ibu Sejati untuk Memenuhi Kebutuhan Bahan Baku Pembuatan Semen di PT Semen Padang Pranata Saragi, Christian; C. Eka Putra, Jevie; Afni Nelvi; Rahmi, Hisni; Cressendo, Hedsing; Juniah, Restu
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol. 25 No. 1 (2025): Regular Issue
Publisher : SEKOLAH TINGGI TEKNOLOGI INDUSTRI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/8sfs5s72

Abstract

PT. Sayang Ibu Sejati bergerak di bidang pertambangan bahan galian Pozolan (Trass) dan mempunyai wilayah Izin Usaha Pertambangan (IUP) sebesar 4,95 Ha. Pada kegiatan penambangan alat gali-muat dan alat angkut yang digunakan yaitu Excavator Komatsu PC 200 dan Dump Truk Hino 500. PT. Sayang Ibu Sejati bekerja sama dengan PT.Semen Padang untuk memenuhi kebutuhan bahan baku pencampur semen dengan target 10.000 Ton/bulan. Namun, PT. Sayang Ibu Sejati hanya memproduksi 4.922,98 Ton per tiga bulan nya, dikarenakannya banyaknya hambatan yang terjadi seperti hujan, pekerja yang tidak disiplin dalam bekerja, kondisi alat yang rusak, dan lain-lain. Tujuan dari penelitian ini adalah agar target produksi pada PT. Sayang Ibu Sejati berjalan secara optimal, sehingga tercapainya target yang diinginkan oleh PT. Semen Padang. Dilakukan analisis produktivitas menggunakan perhitungan Match Factor (MF). Perhitungan faktor  ketersediaan alat  gali-muat  Excavator Komatsu  PC 200  diperoleh nilai Mechanical Availability (MA) sebesar 94%, Physical Availability (PA) sebesar 97%,  Use  of  Availability  (UA)  sebesar  51%  dan  efisiensi kerja  sebesar  50% dengan waktu kerja efektif 119 jam/bulan. Untuk alat angkut Dump Truck Hino 500 nilai Mechanical Availability (MA) sebesar 87%, Physical Availability (PA) sebesar 89%, Use of Availability (UA) sebesar 53% dan efisiensi kerja sebesar 48% dengan waktu kerja efektif 120 jam/bulan. Didapatkan produktivitas aktual alat gali-muat sebesar 5.726,28 ton/bulan dengan waktu kerja efektif sebesar 119 jam/bulan dan efisiensi kerja yaitu 36% dan untuk alat angkut sebesar 3.967,2 ton/bulan dengan waktu kerja efektif sebesar 120 jam/bulan dan efisiensi kerja 36%. Diperoleh nilai keserasian alat gali-muat dan alat angkut sebesar 0,68 dan menunjukkan nilai Match Factor (MF) < 1 yang berarti alat gali-muat dan alat angkut tidak bekerja 100%.
Co-Authors Afni Nelvi akib abro, akib Amanda, Ridho Rizky Ambarita, Novitasari Anaperta, Yoszi Anna Yulianita Arie Saputra Armo, Achmad Abraham Setiawan C. Eka Putra, Jevie Cressendo, Hedsing fathiya selviyana, fathiya Fathunnisa Handayani, Rr. Harminuke Eko Hendry Wijaya Hisni Rahmi kiagus muhammad rustandi, kiagus muhammad M. Taufik Toha Machmud Hasjim Makmur Asyik Manuhutu, Hendry Irawan Muhammad Amin Pebrianto, Rosihan Pranata Saragi, Christian Ridho Yovanda Rozirwan . Saloma Siregar, Husein Alifia Syahrani, Achmad Muharram Syaifudin Zakir, Syaifudin Syamdhora, Riki Syarifudin Wardhana, Fuad Yovanda, Ridho Yulindasari Sutejo, Yulindasari