Individual entrepreneur, Moscow, Russia

S. A. Bakharev, Dr. Eng., Prof., e-mail: taf@list.ru

A modern metallurgical enterprise and water treatment plants in the cities in which they are located are among the largest consumers of natural water, and their water supply and sanitation systems are among the most important elements, since the environmental situation in the agglomeration and the quality of life of its residents, including employees of ferrous metallurgy enterprises, directly depend on the quality of their work. To improve the quality of water purification (natural, recycled and wastewater) from finely dispersed (TD) – grades -5 μm, suspended solids (BB) and heavy metals (TM), as well as from pathogenic bacteria (BB) and algae (VD), it is proposed to use the integrated acoustic method (CAM) more widely, in particular water treatment and sanitation systems of agglomerations of ferrous metallurgy. The main differences of the CAM method are: non-reactivity; low power consumption (0.5-5.0 W/m³ of water); autonomy (no operator presence required); the use of the same set of sonar emitters and power amplifiers with a set of removable digital media for simultaneous solution of a range of applied tasks not only in the field of water supply and sanitation, but also providing highquality recycled water. At the same time, the CAM method can be applied both independently and in the chain of existing water supply and sanitation systems at the enterprise. New results of using the CAM method to improve the quality of water purification (natural, recycled and wastewater) from TDVV, TM (manganese), BB and VD, both in the northern regions (Arkhangelsk and Murmansk regions, etc.) and in the southern regions (Astrakhan and Rostov regions, etc.) are presented.

1. Amosova Yu. E., Matveeva M. A. Environmentally friendly production as an element of sustainable development of metallurgical enterprises. Vestnik YuUrGU. 2019. Vol. 19. No. 1. pp. 43–49.
2. Bakharev S. A. On the possibility of using a complex acoustic method for drainage in ferrous metallurgy. Chernye Metally. 2021. No. 3. pp. 60–65.
3. Bolshina E. P. Ecology of metallurgical production. Tutorial. Novotroitsk : MISiS, 2012. 155 p.
4. Bulanov I. A., Terentyev N. E. Problems and directions of technological modernization of the metallurgical complex of Russia in the context of “green” growth of the economy. Scientific works of the Institute of Economic Forecasting, RAS. Moscow : MAKS-Press, 2017. No. 15. pp. 76–91.
5. Pashkevich M. A., Petrova V. A. Study of technogenic migration of manganese in water bodies of the Kovdor district. Zapiski Gornogo instituta. 2014. Vol. 207. pp. 202–205.
6. Bakharev S. A. On the issue of preserving the biodiversity of fish and their natural habitat. Vestnik RAEN. 2020. No. 1. pp. 52–62.
7. Tazaki K., Sato M., Van Der Gaast S., Morikawa T. Effects of clay-rich river-dam sediments on downstream fish and plant life. Clay Minerals. 2003. Vol. 38. pp. 243–253.
8. Averina Yu. M., Asnis N. A., Vagramyan T. A., Menshikov V. V. Study of the oxidation rate of Fе2+ ions in water during air bubbling. Teoreticheskie osnovy khimicheskoy tekhnologii. 2018. Vol. 52. No. 1. pp. 79–82.
9. Kulakov V. V., Soshnikov E. V., Tchaikovsky G. P. Deironing and demanganization of groundwater : tutorial. Khabarovsk : FESTU, 1998. 100 p.
10. Machekhina K. I., Shiyan L. N., Tropina E. A. et al. Study of ultra- and nanofiltration processes of colloidal iron solutions. Izvestiya Tomskogo politekhnicheskogo universiteta. 2011. Vol. 318, No. 3. pp. 27–30.
11. Sazonov D. V., Antonova E. S. Selection of aeration systems for flotation purification of water of various compositions. Voda: khimiya i ekologiya. 2018. No. 1-3 (114). pp. 62–67.
12. Cheng G., Shi C., Yan X., Zhang Z. et al. A study of bubble-particle interactions in a column flotation process. Physicochemical Problems of Mineral Processing. 2017. Vol. 53 (1). pp. 17–33.
13. Prakash R., Majumder S. K., Singh A. Flotation technique: its mechanisms and design parameters. Chemical Engineering and Processing. 2017. Vol. 127. pp. 249–270.
14. Cheraghian G. Evaluation of clay and fumed silica nanoparticles on adsorption of surfactant polymer during enhanced oil recovery. Journal of the Japan Petroleum Institute. 2017. Vol. 60, Iss. 2. pp. 85–94.
15. Sánchez-Góngora M.-A., Peón-Escalante I.-E., Cardona-Juárez Т., Ortega-Arroyo L. et al. Low temperature wastewater treatment and recycling by psychrophilic biodegradation. Water and Ecology. 2020. Vol. 1, Iss. 81. pp. 13–27.
16. GOST 12966–85. Technical purified aluminium sulphate. Specifications. Introduced: 01.01.1987.