The paper presents the study on the physical properties of the cuttings. Culvert capacity of the drill cuttings with different coagulants is considered. The water permeability of the studied samples varies depending on the quality of the composition and the dosage of a coagulant used. The coagulants have been proposed as aluminium sulphate, iron sulphate, calcium chloride, gypsum, phosphogypsum, serpentine, blast furnace slag, calcium carbonate and carnallite. Iron and aluminium sulphates, calcium chloride, gypsum and phosphogypsum appear to be the most effective when acting on the water permeability in the drill cuttings. With regard to the variants incorporating the complete response curve, the optimal dose of ameliorant can be determined after maximum filtration of water in the column. This method allows the dose of coagulant to be determined by the filtration threshold. The optimal dose for iron sulphate is 0.8 g; with this parameter the volume of filtered water reaches 16.80 ml / day.The use of effective coagulants allows displacement of sodium and potassium cations from the absorption complex and fundamentally improves its physical and chemical properties; this is clearly seen by the change of the filtration capacity of the considered sample. Phosphogypsum – a waste material of chemical industry of Ural chemical plants - is of the greatest interest. It can significantly improve the properties of the considered sample when transforming two waste materials (drill cuttings and phosphogypsum) to a neutral environmentally-friendly state.
The article contains an analysis of fresh water use in the Ural federal district for 2012-2015 years and waste waters characteristics. The materialsused forthe study included the data on the protection of the environment in Ural Federal district. The carried out analysis has shown that due to the water objects, the largest amount of fresh water is taken in Khanty-Mansisk autonomous district and Sverdlovsk region; the largest amount of used fresh water is in Khanty-Mansisk and Yamalo-Nenets autonomous districts (2022 and 389 mln. m3), and also in Tyumen region (221 mln. m3). In general, in the Ural federal district during 2012-2015 the largest amount of fresh waters is used for the industrial needs (in total - 48.3% of the used water). And among the autonomous districts and regions, Khanty-Mansisk AD and Sverdlovsk region dominate by this index. Maximal volume of the waste waters is noted in Sverdlovsk region (952 mln. m3). In the time course, significant decrease of their volume was revealed only in Sverdlovsk and Chelyabinsk regions.Sverdlovskand Chelyabinsk regions are characterized by the largest volume of the waste waters, requiring treatment on the average for 2012-2015 years (79.4% and 88.9% of waste watersvolume -in total). In general in the Ural federal district in 2012-2015 the volume of circulating and reused water supply systems made up 30472 mln m3. In the time course this volume has decreased in the Ural federal district, and also in the regions
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