Individual Entrepreneur (Russia):

Bakharev S. A., Doctor of Engineering Sciences, Professor; taf@list.ru

Mining of noble metals and valuable crystals is associated with processing of vast quantities of rock materials in the location of river and stream valleys. As a result of processing operations, a partial environmental destruction occurs, hydrological regime of rivers is changed, as well as a related hydrologic situation. Discharge of wastewaters with high concentration of suspended substances and heavy metals leads to fish mortality, silting of watercourses and vegetation die-off in bottomland plots. The wastewaters complex treatment installation, developed by the author, was subjected to commercial-scale testing with treatment of effluent water, as well as drainage, mine dump and quarry waters, discharged by mining-and-processing operations, located in valleys of spawning streams, and the testing results are presented. It is shown, that with industrial wastewaters discharge of 500–3500 m³/hr, 85–90 % efficiency of acoustical purification from suspended substances and heavy metals is achieved, and, with subsequent daily settling — 95–97 %. With that, power consumption does not exceed 0.5 W per 1 m³ of wastewater with suspended substances starting concentration being up to 2–3 g/l. Evidence is provided, regarding that the developed method complies with the requirements of the generalized criterion «Quality — Productivity — Cost — Energy Consumption — Ecological Performance» to a maximum degree. The wastewaters complex treatment installation, equipped with magnetoacoustic hydrocyclone, developed by the author, provides for water purification (solids and bio impurities removal), demineralization and decontamination of environmental waters, used in return water systems of mining-and-processing facilities in the Russia’s Far North region.

1. Bakharev S. A. The results of using of acoustic method of sewage treatment from suspended solids in the spawning rivers basin of Kamchatka. Vestnik XXI. Razvedka, dobycha, pererabotka poleznykh iskopayemykh (Bulletin XXI. Exploration, production and processing of minerals). Under ed. of V. Zh. Arens. Moscow, Intermet Inzhiniring, 2007, pp. 43–46.

2. Bakharev S. A. Akustika v gornoy promyshlennosti (Acoustics in mining industry). Germany, Lambert Academic Publishing GmbH, 2013, 278 p.
3. Leman V. N., Chebanova V. V. Response of lithophilic zoobenthos to changes in the granulometric composition of grounds in the metarithral zone of a small river in the foothills of southwestern Kamchatka. Ekologiya = Russian Journal of Ecology, 2005, Iss. 2, pp. 120–125.
4. Chanturiya V. A. Modern problems of mineral processing in Russia. Gornyi Zhurnal = Mining Journal, 2005, No. 12, pp. 56–64.
5. Chanturiya V. A. Progress of mining sciences and problems of complex development of the Earth's interior. Gornyi Zhurnal = Mining Journal, 2007, No. 10, pp. 101–112.
6. Bakharev S. A., Maksimova I. S. New technology of nonchemical wastewater treatment from suspended solids. Vserossiyskaya nauchno-tekhnicheskaya konferentsiya «Sokhraneniye bioraznoobraziya Kamchatki» (All-Russian scientific-and-technical conf. «Biodiversity conservation of Kamchatka»). Petropavlovsk-Kamchatsky, KIG, 2005, pp. 25–28.
7. Urick R. J. Osnovy gidroakustiki (Principles of underwater sound). Leningrad, Sudostroyeniye, 1978, 374 p.
8. Zarembo L. K., Krasilnikov V. A. Vvedeniye v nelineynuyu akustiku (Introduction to nonlinear acoustics). Moscow, Nauka, 1966, 520 p.