scholarly journals Group winning blasting as a measure to mitigate seismic hazard in a deep copper ore mine, SW Poland

Mining Scince ◽  
2020 ◽  
Vol 27 ◽  
Author(s):  
Anna Barbara Gogolewska ◽  
Małgorzata Maria Kowalczyk
Keyword(s):  
Seismic Hazard ◽  
Copper Ore ◽  
Sw Poland

scholarly journals The effect of process water salinity on flotation of copper ore from Lubin mining region (SW Poland)

2017 ◽  
Vol 18 ◽  
pp. 01007
Author(s):  
Alicja Bakalarz ◽  
Magdalena Duchnowska ◽  
Andrzej Luszczkiewicz
Keyword(s):  
Process Water ◽  
Water Salinity ◽  
Copper Ore ◽  
Mining Region ◽  
Sw Poland

scholarly journals The effect of process water salinity on flotation of copper ore from Lubin mining region (SW Poland)

2017 ◽  
Vol 18 ◽  
pp. 01007
Author(s):  
Alicja Bakalarz ◽  
Magdalena Duchnowska ◽  
Andrzej Luszczkiewicz
Keyword(s):  
Tap Water ◽  
Reclaimed Water ◽  
Process Water ◽  
Water Salinity ◽  
Copper Ore ◽  
Tailing Dam ◽  
Salinity Levels ◽  
Sw Poland ◽  
Concentration Limits ◽  
Soluble Components

The process water used for the flotation of sedimentary copper ore in ore concentration plants in KGHM Polska Miedz S.A. were characterized. The process water used in the flotation circuits is heavily saline. It contains between 25 and 45 g/dm3 of soluble components, and the main constituent, in about 75%, is NaCl. Process water used for flotation consists of reclaimed water from the tailing dam and mine water. The effect of process water salinity on the processes of copper flotation from the Lubin mine area was described. The results of laboratory flotation experiments conducted in tap water and in water of different salinity levels were compared. The effect of the salinity of water within specified concentration limits was generally found to be beneficial for upgrading of the examined ore.

PEMETAAN DAERAH RENTAN GEMPA BUMI SEBAGAI DASAR PERENCANAAN TATA RUANG DAN WILAYAH DI PROVINSI SULAWESI BARAT

KURVATEK ◽  
2017 ◽  
Vol 1 (2) ◽  
pp. 41-47
Author(s):  
Marinda noor Eva
Keyword(s):  
Seismic Hazard ◽  
Hazard Analysis ◽  
Probabilistic Seismic Hazard Analysis ◽  
Seismic Hazard Analysis ◽  
Probabilistic Seismic Hazard

Penelitian mengenai daerah rawan gempa bumi ini menggunakan Metode Probabilistic Seismic Hazard Analysis (PSHA) di Provinsi Sulawesi Barat, dengan tujuan untuk memetakan tingkat kerawanan bahaya gempa bumi di Kabupaten Mamasa. Penelitian ini menggunakan data kejadian gempa bumi di Pulau Sulawesi dan sekitarnya dari tahun 1900 – 2015. Hasil pengolahan PSHA menggunakan Software Ez-Frisk 7.52 yang menghasilkan nilai hazard di batuan dasar pada kondisi PGA (T = 0,0 sekon), dengan periode ulang 500 tahun dan 2500 tahun berkisar antara (149,54 – 439,45) gal dan (287,18 – 762,81) gal. Nilai hazard di batuan dasar dengan kondisi spektra T = 0,2 sekon untuk periode ulang 500 tahun dan 2500 tahun adalah (307,04 – 1010,90) gal dan (569,48 – 1849,78) gal. Nilai hazard di batuan dasar dengan kondisi spektra T = 1,0 sekon untuk periode ulang 500 tahun dan 2500 tahun diperoleh nilai (118,01 – 265,75) gal dan (223,74 – 510,92) gal. Berdasarkan analisis PSHA, nilai PGA di Provinsi Sulawesi Barat dominan dipengaruhi oleh sumber gempa sesar.

Sign in / Sign up

Export Citation Format

Share Document