On the need to consider the lithological composition of overburden rocks in the design of waste water treatment plants at open pit mines

Abstract

The issue of wastewater treatment in open-pit mining of mineral deposits is associated with great difficulties. Due to the constant tightening of requirements for the quality of discharged wastewater, its treatment in the sedimentation reservoirs and clarification ponds does not ensure the achievement of MPC values; in addition, these treatment facilities occupy significant areas of land. It should also be noted that the open-pit mines, as a rule, have several water outlets remote from each other, besides changing their location as the development of mining operations proceeds. For example, OJSC "UK "Kuzbassrazrezugol" has more than 30 places of water use, taking into account that the company structure includes 7 open-pit mines. In the article some results of analyses of pit waste water before and after its treatment in artificial filtering massifs at the mining enterprises of Kuzbass are presented. Preliminary dependences of changes in pollutant impurities in quarry water on different composition of coal waste have been established.

To Determine the Rational Area of Application of Excavation and Loading Equipment

“…Необходимо подчеркнуть, что структуры слоев углена сыщенной зоны имеют случайный характер [7,8], посколь ку являются продуктами случайных природных факторов: продолжительности и особенностей геологических эпох пермского периода и более поздних тектонических про цессов. Единственный объединяющий признак, который может быть принят во внимание, -число пластов в свите.…”