Increasing the Reliability of the Work of Artificial Filtering Arrays for the Purification of Quarry Waste Water

Abstract

Abstract. Features of geological structure of the Kuznetsk coal basin stipulate the application of a low-cost open technique of coal mining, which is more advantageous both from the economic standpoint, and by safety criteria of mining. However, open mining affects significantly the water resources of region. Intensive pollution of reservoirs and water courses, exhaustion of the underground water-bearing layers, violation of a hydrographic network, etc. be-long to the main disadvantages of an open technique of coal mining. Besides, the volume of the water coming into the mining producers exceeds signi-ficantly the needed quantity. According to the data of annual reports of ecology and natural resources department, 348.277 million m3 of water were ta-ken away during production of soft coal, brown coal and lignum fossil from waters of Kemerovo region in 2013 (mostly from underground water objects (96,5%) when draining of mine openings). At the same time, only 87.018 million m3 of water (25%) has been used within a year.

Recycling Strategies of Mine Tailing, with Environmental, Safety, Technical and Materials Considerations

“…However, despite the high demand from the construction industry (1.5 billion tonnes), the use of tailings as construction material does not reach 1% in volume [90]. This situation occurs due to factors such as the value of building materials being relatively low compared to other products with higher added value; and cost caused by transport logistics [90,95]. Thus, even with a relatively vast literature on the subject, the subject is quite broad, with several gaps being observed, mainly concerning technologies, efficiency in the use of certain compounds from tailings and use or recycling of some types of waste such as chromium, cobalt, manganese, nickel, bauxite, aluminum, zinc, silver, feldspar, bentonite, among others.…”

Recycling strategies of mine tailing, and its technical and practical considerations

“…However, despite the high demand from the construction industry (1.5 billion tonnes), the use of tailings as construction material does not reach 1% in volume [90]. This situation occurs due to factors such as the value of building materials being relatively low compared to other products with higher added value, and the costs caused by transport logistics [90,95].…”

Sludge water stabilization treatment

“…In order to significantly reduce the negative impact of coal concentration plants on the environment, it is necessary to create closed water cycles at these enterprises [1][2][3][4][5][6]. Preliminary treatment of industrial wastewater from mining enterprises is mainly aimed at cleaning them from suspended solids, especially with the use of technogenic filter massifs from overburden rock [7][8][9][10][11][12][13][14]. The use of geotextile materials for dewatering of water-coal slurry makes sense at further purification of sludge water released from the surface of shell filtering constructions [15][16][17].…”