In the tin ore processing process that aims to separate the concentrate and tailing, there are valuable minerals that slipped off and wasted through the tailing so that rises the potential for low grade tin ore from the washing remainders (SHP). In optimizing the processing of tin ore, it is necessary to carry out further processing, one of which is by using shaking table technology. Shaking ta…
In May 2023 PT Ulima Nitra's production target was 81,809.12 tons while the actual achievement was 66,475 tons. This was caused by several factors and it was indicated that one of the contributing factors was coal losses. This study aims to calculate the potential losses, and the causes and efforts to minimize coal losses.Calculation of potential losses is done by comparing the recovery hauling…
Green concrete is concrete that utilizes the use of waste or recycled materials at least as one of its components, or when the production process does not cause damage to the environment and the sustainability of the life cycle. So that it can be interpreted that green concrete is environmentally friendly concrete. In this study, a case study was taken of making concrete by utilizing fly ash, a…
PT Mustika Indah Permai merupakan perusahaan swasta yang bergerak dalam bidang pertambangan batubara. Kegiatan penambangan dilakukan pada wilayah penambangan pit Sungkai menggunakan sistem tambang terbuka dengan metode shovel and truck. Target produksi batubara pada bulan Maret 2022 adalah 232.385,55 ton/bulan. Adapun tujuan penelitian ini adalah untuk mengetahui produksi aktual dari alat gali …
In common brass metal the zinc content is 15-37%, brass is commonly used as a substitute for copper as pipe fittings, nuts, musical instruments and shell bullets, connecting rods for pistons and shafts. Efforts to reduce the level of deformation and increase the level of ductility of brass metal is by giving it a heat tempering treatment. The purpose of this study was to determine the effect of…
In the midst of today's developments, libraries are starting to be established as spaces that not only provide various book collections, but especially libraries in big cities are conceptualized as places that reflect people's lifestyles, namely libraries with a cafe feel in the city of Palembang. The presence of a cafe library has become a special attraction for the people of Palembang city, t…
PT. Duta Bara utama terletak di kabupaten muara enim ,Sumatra Selatan.Sistem penambangan yang dilakukan pada Pit di PT.DBU dengan sistem tambang terbuka yang menggunakan alat gali muat Excavator Komatsu PC 400 LC , excavator Volvo EC 480 DL , Excavator Hyundai HX340SL , Dump Truck Scania P360 , Quester CWE28064R ,Target pengupasan overburden di PT.Duta Bara Utama tahun 2022 adalah 2.599.292,67 …
Coal production at PT Bukit Bara Alam has not reached the set production target. The coal production target at PT Bukit Bara Alam in January was 65,000 tons, while actual production was 56,570 tons. The failure to achieve coal production targets is caused by many factors, both unavoidable and avoidable factors. The purpose of this research is to analyze the factors that cause non-achievement an…
PT. Bukit Asam, Tbk. BUMN yang bergerak dalam industri pertambangan batubara yang berada di Tanjung Enim, SumateraaSelatan.aMetodeapenambangannya adalah open pit, penambangan dilakukan dengan menggunakan excavator backhoe, dan alat bulldozer yang dilengkapi ripper. Bulldozer ripper komatsu D 375 A untuk membantu kegiatan ripping batubara yang dapat memudahkan excavator backhoe melakukan penggal…
Pada area Lati Mine Operation, khususnya di pit PQRT terdapat banyak material lunak dimana terdiri dari material rawa dan material redistrub sehingga diperlukan perencanaan untuk penanganan khusus dalam menimbun material lunak tersebut. Penggunaan metode channel dump ini bertujuan untuk mengurangi kebutuhan perawatan di area disposal, peningkatan angka blending ratio serta mengurangi penggunaan…
PT Surya Global Makmur is a mining site located in the village of Rangkiling, Sarolangun Regency, Jambi Province. The coal mining of PT Surya Global Makmur Jobsite Mandi Angin is carried out using the open pit method. The open pit mining method is strongly influenced by the weather so that it has an impact on mining production activities. The mine drainage system occurs if there is water enteri…
Surgical procedures are one of the causes of acute pain nursing problems. To reduce the level of pain felt, non-pharmacological therapy can be done, namely music therapy and deep breathing relaxation therapy without causing side effects for sufferers. The aim of this case study is to apply comprehensive nursing care by providing music therapy and deep breathing relaxation therapy to reduce the …
Indonesia is one of the countries with low interest in reading. Based on UNESCO data, interest in reading in Indonesia is only 0.001%, which means that only 1 person has an interest in reading out of 1000 people. From the survey results, it can be concluded that literacy culture in Indonesia is very lacking. According to the expert staff of the Minister of Home Affairs (Mendagri, 2019), Indones…
PT Triaryani is a company engaged in coal mining located in the Nibung District and Rawas Ilir District, North Musi Rawas Regency, South Sumatra Province. In mining activities the existence of mechanical equipment plays an important role. Often the use of hauling equipment is not as planned so that it will hamper production activities. The purpose of this research is to optimize mechanical equi…
PT. Budi Gema Gempita merupakan perusahaan tambang batubara yang terletak di Kabupaten Lahat, Provinsi Sumatera Selatan dengan PT. Andalan Artha Primanusa sebagai perusahaan kontraktor yang bekerja di bawah naungan PT. Budi Gema Gempita. Pada bulan Januari ditargetkan pengupasan overburden sebesar 576.210,8 BCM, pada bulan Februari ditargetkan sebesar 603.374,6 BCM dan target pengupasan pada du…
An ideal mine hauling road will optimize production results in accordance with planned production targets. The coal production target at PT Bukit Bara Alam in January and February is 65,000 tons and 61,000 tons, while the actual production is 56,570 tons and 50,819. One of the unattainments is caused by the less than ideal haul road geometry so that the travel time of dump trucks from the minin…