Model Of Eco-Efficiency Assessment Of Mining Production Processes

Abstract

The paper presents an author’s method of eco-efficiency assessment of mining production processes in hard coal mines, which enables integrating results of evaluating both environmental and economic aspects. The proposed method uses life cycle approach to assess environmental efficiency and the result of operating activities to assess economic efficiency. The comprehensive method of assessing mining production processes was proposed as the Key Performance Indicator (KPI) in hard coal mines in Poland to be used to support decision making in mining companies.

Zastosowanie Metody Lca Do Wspomagania Decyzji 11 Środowiskowych W Gospodarce Wodno-Ściekowej

“…Z punktu widzenia wdrażania zasad zrównoważonego rozwoju istotne jest tworzenie stabilnych systemów odbioru i oczyszczania ścieków, którymi zarządzanie umożliwiać będzie przyjazne ich funkcjonowanie dla społeczeństwa, środowiska i gospodarki 8 . Zagadnienia skutecznego odbioru, odprowadzania i oczyszczania ścieków są ciągle aktualnym wyzwaniem, które wpływa przede wszystkim na realizację zasad ochrony środowiska gruntowo-wodnego.…”

Proposal of Economic Assessment of Hard Coal Mines Operation Conducted in Polish Conditions with the Use of Cost Benefit Analysis

“…Proper analysis of the processes related to the production of coal cannot be limited to a definition of their overall structure. It is significant to identify unit processes, which are a part of major groups of sub-processes, in order to properly understand the process of coal production and the complexity of the operation of the mine (Czaplicka-Kolarz et al, 2015). Summary of unit processes carried out in the mine is shown in Figure 2.…”

Study on the Effect of Microwave Irradiation on Rock Strength

“…The test is performed only on the intact rock mass without structural surface because of the difficulty of making rock samples with a structural surface. The basic physical parameters of granite are as follows: density ρ = 2500 kg/m 3 The granite sample irradiated by the microwave is shown in Figure 4. This figure also shows that microwave irradiation causes a number of cracks in the surface of granite samples.…”

“…Some advantages of microwave heating over conventional heating include internal heating, rapid heating, selective heating, and ease-of-control. Moreover, microwave heating is widely used in food, agriculture, medicine, and metallurgy [1][2][3][4][5]. Microwave heating can also be used in auxiliary rock breaking.…”

“…shows the relationship between rock mass strength and structural surface angle when the power density is P d = 8 × 10 6 W/m3 and irradiation time is t = 0, 30, and 60 s. The curve segment is the result of rock breaking along the structural surface, and the rock mass strength is determined by the strength of the structural surface. The horizontal segment is the result of rock breaking in a surface other than along the structural surface, and rock mass strength is determined by rock block strength.…”