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Journal : JURNAL TEKNOLOGI TECHNOSCIENTIA

PENGUJIAN KUALITAS AIR ASAM TAMBANG PADA TAMBANG BATUBARA PT. Bukit Asam Tbk – Tanjung Enim Rembah, Rina
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 8 No 1 Agustus 2015
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v8i1.191

Abstract

Mine drainage was problem in mining aktivity at activ periode and mine closure. And will be enviroment issue from mine drainage is water quality, what is Pontentially Acid Forming or Non Acid Forming. For to know water quality will be forming, as the firts step is understanding about stone geochemical characteristic. Stone of behavior can be knew base on geochemical characteristic by step testing are static test with testing sulfure total, pH paste, pH NAG, ABA methode and verification with kinetic test by Free Draining Column Leach Test with physic and chemical testing, also mineralogy testing with X-RD for to know mineral composition in stone. Base on characteristic result can be get stone type potentially acid forming/ PAF and non acid forming/NAF. Then water quality test as leachate stone PAF/NAF by kinetic quality test. From this research, result of type the stone are PAF and NAF, where PAF is high capacity with NAPP value 88,64 kg H2SO4/ton and pH NAG 2,42 with kinetic test result showen pH 2,18 in acid zone. And for NAF with NAPP value -0,78 kg H2SO4/ton and pH NAG 6,81 with kinetic test result showen pH 7,53 in netral zone.
FANALISA KEBUTUHAN KALSIUM KARBID PADA PROSES DE-SULFURISASI PEMURNIAN NIKEL FENI II PADA PT ANEKA TAMBANG, TBK UBPN SULTRA PROVINSI SULAWESI TENGGARA Rembah, Rina
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 1 Agustus 2012
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i1.518

Abstract

Aneka Tambang Tbk UBPN SULTRA was the once company of nation under order of BUMN (Badan Usaha Milik Negara) consentration in mining nickel, in place At Kecamatan Pomalaa, Kabupaten Kolaka South East Provence. Two factory was operated since 1975 with capacity 11.000 ton nickel/year, however once factory was builded since 1995 with capacity 24.000 ton nickel/year and after that production since 2004 with cost assumption 200 U$$. One of step process smelter to up the ferronickel grade is refining process. And to down sulfur grade in product so that accept standart product in market ≤ 0,03%, that do it de-sulfurisasi process. The problem in refining process specialy de-sulfurisasi refining is over consumption calcium cabid, long time process that down the temperature and grade in product not accept in international market.From result of calculated consumption calsium cardib for de-sulfurisasi proces as we know that rate consumption for assosiated 1 kg sulfur need 3, 69 kg calsium cardib. And to reduce consumption between planning and realitation is 40,39 kg/tapping proces. Rate temperature need is 2oc/minute for once tapping proces and need time to proces is 37 minute.rate Down temperature for once proces is 74,2oc, rate of consumption calsium carbid pertapping is 489,6 kg. Factor’s efect in comsumption calsium carbid is condition of ladle, temperatur,stirer condition, mechanisem into material in ladle and specialy of operator.
Co-Authors Abd Gani Baeda Abdul Hamid S. Abdul Salam Munir Al Tafakur La Ode Anis Ribcalia Septiana Aprilia Aprilia, Aprilia Arif Arif Arif Arif Arif Arif Arman Hidayat Arya Dirgantara Asliadi, Amril Bagus Eko Prasetyo Besse Putrilia Candra, Wahyu Carla Sabandar Dirgantara, Arya Dodi, La Dzakir, Laode Eko Bambang Murdiansyah Evodius Nasus Fathur Rahman Rustan H, Hasriyanti Haerul Purnama Hamsir, La Ode Hasriyanti Hasriyanti Hasriyanti Ica Aprilia Seleng Irabiah Isram Yano Yatjong Isramyano Yatjong Jayanti Yusmah Sari Jayawarsa, A.A. Ketut Kadar, Muhammad Ilham Kamaruddin, Harni Sartika Khafidzah Yusuf Kumalasari, Rizki Kumalasari, Rizky La Ode Dzakir Mansyur Mansyur Mansyur Mansyur Masgode , Muhammad Buttomi Masgode, Muhammad Buttomi Megawati Megawati Muh Syahruddin Muh. Ansar Azali Muhamad Jalil Baari Muhammad Rayzhal Faturahman Muhdar Mulimin, Muslimin Mursalim Ninoy La Ola N, Nurfasiha Noorhasanah Zainuddin Novianti, Yuniar Siska Nun Ainun Arap Nur Afifa Nurfasiha Nurfasiha Nurfasiha, Nurfasiha Nurliana Nurliana Nursyafika, Nursyafika Ode Dzakir, La Poalahi Salu, Sahrul Prasetyo, Bagus Eko Puspaningtyas, Retno Renaldi, Ahmad Retno Puspaningtyas Retno Wahyuningrum Rezkiya Nur Insani Rina Hardianti Pratiwi Rizkal, Rizkal Rizki Kumalasari S, Suwarto Sahrul Sahrul Salu, Sahrul Poalahi Sehan, Sahara Sri Gita Handayani Suharsono Bantun Susianti Susianti Suwarto Sunandar Suwarto Suwarto Suwarto Suwarto Syahrul Syahrul Syahrul Syahrul Syahrul Tulak, Grace Tedy Usriadi Usriadi Wahyuni Hakim Yatjong, Isramyano Yayang Rahmadani Zakina, Besse Ririn Zulfahmi Zulfahmi