The problem of drilling waste utilisation is assumed to be resolved through the implementation of the complex of environment protection measures in production engineering. They include primarily the use in the process of well drilling of drilling mud on the basis of water-soluble biodegradable polymers and a four-stage drilling mud refining system. Secondly, the usage of the well site construction with trenching for allocation of expressed bore mud and a temporary ground tank for drilling waste water.
The article investigates the main problem of the standard water treatment system which requires high consumption of reagents and the need to systematically select the optimal dosage (depending on the changeable environmental conditions). The proposed technology of magnetic-reagent treatment of water allows intensifying the stage of reagent treatment. With the implementation of this technology the costs for the reconstruction of the object will not be significant. Bench and test-industrial tests at oil contaminated and drinking water treatment facilities showed the effectiveness of the proposed method, caused by a decrease in time of gravitational separation of coagulated globules and a reduction in the reagent consumption. It is shown that the proposed technology can be considered both as an upgrade of existing water treatment stations operating under a typical scheme, and in the design of new facilities.
The main purpose of the work was to determine the methods of mining enterprises wastewater secondary treatment from nitrogenous compounds. The chemical analysis of wastewater was carried out, and substances with exceeding concentrations were established. The accumulating power of indigenous species of higher aquatic vegetation has been estimated. The absorption regularities of nitrates of duckweed (Lemna minor) in solutions with different concentrations were determined. The expediency of duckweed cultivating with the aim of phytoremediation has been proved.
This work covers the pollution of the atmosphere during the work of the Mikhailovsky Mining and Refining Facility which is located within 100 km from the city of Kursk, in the city of Zheleznogorsk. Over the past few years in the whole world, the anthropogenic activity, connected mainly with the locations of mineral production and those of mineral treatment and processing, has become increasingly dangerous for the natural environment. Resource development in open pits causes the formation of inorganic dust. The dust is released into the atmosphere at all stages of the enterprise's technical process. The principal sources generating inorganic dust during open mining of iron deposits include: blasting operations in an open pit, the work of transfer points, the enrichment process at a factory, pellet firing as well as dusting from the surfaces of stock dumps and dry tailings beaches.
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