TOBAN, CHATRINA (2014) DESAIN TEKNIS KOLAM PENGENDAPAN PADA UPPER RANGKOK SISI BARAT DI PT. KALTIM PRIMA COAL KALIMANTAN TIMUR. Other thesis, UPN "Veteran" Yogyakarta.
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Abstract
PT. Kaltim Prima Coal (PT. KPC) terletak di Kecamatan Sangatta, Kabupaten Kutai Timur, Provinsi Kalimantan Timur, dan mempunyai PKP2B seluas 90.960 Ha. Didalam operasinya, daerah penambangan Batubara terletak di Sangatta dan Bengalon, Penambangan yg dilakukan PT. KPC hanya di Sangatta yang mempunyai 3 departemen pit besar yaitu departemen Bintang (pit Bendili), departemen Pit J (pit Pinang South), dan departemen Hatari (pit K-West dan pit Inul East). PT. KPC saat ini telah memiliki kolam pengendapan yang letaknya disebelah utara lokasi penambangan. Jika seluruh air limpasan yang berasal dari DTH seperti tersebut di atas dialirkan ke kolam pengendapan ini, maka tidak akan mampu menampung seluruh debitnya. Oleh karena itu, perlu dibuat kolam pengendapan di bagian atas dari bukaan tambang (upper rangkok). Kolam pengendapan ini berfungsi menangkap air limpasan yang berasal dari DTH di sekitar pit AB, sehingga tidak membebani fungsi kolam pengendapan yang ada di Rangkok. Disamping itu air keluaran dari Upper Rangkok dapat langsung dialirkan menuju sungai dibawah kolam Rangkok. dan sebagai tempat pengujian koagulan jenis Clarific yang nantinya akan diterapkan pada kolam pengendapan, maka diperlukan rancangan untuk kolam pengendapan yang baru. Berdasarkan hasil analisis data curah hujan tahun 2004-2013 diperoleh curah hujan rencana sebesar 97,82 mm/hari, intensitas curah hujan yaitu sebesar 33,91 mm/jam dengan periode ulang hujan 3 tahun dan resiko hidrologi 86,83 %. Daerah tangkapan hujan pada lokasi penelitian didapatkan seluas 3 km2 dan debit yang masuk ke dalam kolam pengendapan yaitu 14,14 m3/detik. Dari hasil rancangan kolam pengendapan diketahui Luas Kolam = 3.594 m2 dan volume kolam pengendapan = 10.782 m³. Berdasarkan hasil penelitian koagulan jenis clarific pada conto air tidak mengalir bahwa dosis clarific yang optimum adalah 0,5 ml. PT. Kaltim Prima Coal (PT. KPC) is located in District Sangatta, East Kutai Regency, East Kalimantan Province and has an area of PKP2B 90,960 Ha. In operation, the coal mining area is located in the Sangatta and Bengalon while PT. KPC mining only operates in Sangatta that has only 3 departments, department bintang (pit Bendili), department Pit J (pit Pinang South), and the department Hatari (K-West pit and pit Inul East). PT. KPC currently have settling ponds are located on north of the mine site. If all the water runoff from catchment area as mentioned above is supplied to the settling ponds, it will not be able to accommodate all debits. Therefore, need to be made settling ponds at the top of the mine openings (upper rangkok). The settling ponds function captures runoff water from the catchment of pit AB, so as not to burden the existing settling ponds function in Rangkok. Besides, the water output from the upper Rangkok can be directly streamed to the river below Rangkok pool. and as a coagulant testing clarific types that will be applied to the settling ponds, it is necessary to plan for a new settling ponds. Based on the analysis of rainfall data obtained rainfall year 2004-2013 plan of 97.82 mm / day, the intensity of rainfall is equal to 33,91 mm / hour with a 3 year return period rainfall and hydrology risk of 86,83%. Catchment on the location of the research showed the extent of 3 km2 and discharge into the settling ponds is 14,14 m3 / sec. From the calculation results obtained technical design for settling pond: Area settling pond = 3.594 m2 and the volume of the settling ponds = 10.782 m³. Based on the results of research on a sample of coagulant type Clarific water does not flow that clarific optimum dose is 0,5 ml.
| Item Type: | Thesis (Other) |
|---|---|
| Subjects: | T Technology > TN Mining engineering. Metallurgy |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Suprapti |
| Date Deposited: | 20 May 2016 02:24 |
| Last Modified: | 20 May 2016 02:24 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/1823 |
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