Prospects of the Hydrocyclones Implementation for the Mine Water Purification
When extracting mineral resources by mining it is necessary to drain constantly large volumes of mine water from mine working to prevent flooding of underground horizons. Taking into account shortage of water resources in Donetsk region, mine water can be considered as a real alternative source of water supply. Preventive measures of ground water sources pollution and direct involvement of additional water resources in the economic turnover of an enterprise can be reached as a result of the mine water purification by clarification. The use of pressure hydrocyclones allows to improve efficiency of mine water purification from suspended matters with a minimum of capital investments. These plants can be used to isolate mechanical particles from flows with a deposition rate of up to 0,02 m/c. Ecological and economic efficiency of the pressure hydrocyclones implementation is considered on the example of mine water purification in the conditions of the mine named after M. I. Kalinin of Donetsk Coal Energy Company. Cleaned from suspended matters mine water can completely replace in technological processes drinking water from the public water supply. The economy is achieved due to the difference between the cost of drinking water and the prime cost of mine water purification from suspended matters in pressure hydrocyclones. Heads of expenditure for new technology are capital costs, equipment amortization, equipment repair costs, energy costs and labour costs. Comparison of the purification prime cost in hydrocyclones and drinking water cost shows high economic efficiency of the technology. Additional resource of the economic efficiency improvement is to delete ecological costs for mine water discharge in natural sources. The ecological component of the process is equally important. Reduction of harmful discharges in natural sources is the main task when introducing new technological processes.