Issue 4(48), 2017

DOI: http://dx.doi.org/10.21440/2307-2091-2017-4-42-45

Magnetic spherules from the soils near the slag dump of the Nizhniy Tagil metallurgical plant PDF

A. B. Makarov, B. M. Osovetskiy, I. A. Antonova

Magnetic spherules, which are widespread in soils, can have different origins, but spherules with cosmic origin are the most studied. At that, functioning of numerous industrial enterprises of metallurgical profile, thermal power stations, and motor transport can be their origin. According to the data of previous researchers, spherical magnetic particles in soils can serve as an indicator for quantitative assessment of erosion-accumulative phenomena. The authors studied magnetic spherules, isolated from soil samples taken near the dump of blast furnace and metallurgical slags of a large Nizhny Tagil metallurgical plant located on the left bank of the Olkhovka river, functioning since 1949. The way the dump forms is by draining slag along the slope. Consequently, adjacent territories are exposed to a significant dust load, associated with increased concentrations of a number of heavy metals: chromium, iron, manganese, vanadium, copper and zinc. The study of magnetic spherules performed for samples of soils taken at a distance of 50 and 100 m to the west of the dump showed that the content of magnetic fraction in them was 15.1 and 11.7% respectively, of the mineral part of the samples. The authors studied magnetic spherules on a scanning microscope JEOL JSM 6390LV, an at that provide their morphology and the chemical composition of magnetic spherules (18 analyzes) and aggregates on their surface (5 analyzes). Based on the presence of characteristic impurity elements, there are the following varieties: zinc, manganese, vanadium, determined by the peculiarities of metallurgical processes. Low concentrations of spherules in soils do not allow considering them as a significant source of pollution of natural environment, only a slight increase in the content of heavy metals characteristic for them is possible.

Keywords: Nizhniy Tagil; dumps; slags of ferrous metallurgy; magnetic spherules; heavy metals.

 

REFERENCES

1. Ryka V., Malishevskaya A. 1989, Petrograficheskiy slovar' [Petrographic Dictionary], Moscow, 590 p.

2. Makarov A. B., Talalay A. G. 2012, Tekhnogenno-mineral'nye mestorozhdeniya i ikh ekologicheskaya rol' [Technogenic-mineral deposits and their ecological role]. Litosfera [Litosphere], no. 1, pp. 172–176.

3. Makarov A. B. 2006, Tekhnogenno-mineral'nye mestorozhdeniya Urala: dis. ... d-ra geol.-mineral. nauk [Technogenic mineral deposits of the Urals: the dissertation of the doctor of geological and gineralogical sciences], Ekaterinburg, 327 p.

4. Seleznev A. A. 2015, Ekologo-geokhimicheskaya otsenka sostoyaniya urbanizirovannoy sredy na osnove issledovaniya otlozheniy ponizhennykh uchastkov mikrorel'efa (na primere g. Ekaterinburga): dis. … kand. geol-mineral. nauk [Ekological-geochemical estimation of a condition of the urbanized environment on the basis of research of adjournment of the lowered sites of a microrelief (on the example of Ekaterinburg): dissertation of the candidate of geological and mineralogical sciences], Ekaterinburg, 141 p.

5. Sokol E. V., Maksimova N. V. 1999, Zoly ugley Chelyabinskogo basseyna [Ash coals of the Chelyabinsk basin]. Ural'skiy geologicheskiy zhurnal [Uralian Geological Journal], no. 6, pp. 151–154.

6. Anshits A. G., Voskresenskaya E. H., Kondratenko E. V., Fomenko E. V., Sokol E. V. 1998, The Study of composition of novel high temperature catalysts for oxidative conversion of methane. Catalysis Today, vol. 42, pp. 197–203.

7. Kizil'shteyn L. Ya., Dubov I. V., Shpitsgluz A. A., Parada S. G. 2002, Komponenty zol i shlakov TETs [Components of ashes and slags of thermoelectric plants], Moscow, 176 p.

8. Gennadiev A. N., Olson K. R. Chernyanskiy S. S., Dzhons R. L. 2002, Kolichestvennaya otsenka erozionno-akkumulyativnykh yavleniy v pochvakh s pomoshch'yu tekhnogennoy magnitnoy metki [Quantitative assessment of erosion-accumulation phenomena in soils with the help of an anthropogenic magnetic tag]. Pochvovedenie [Eurasian Soil Science], no. 1, pp. 21–32.

9. Gennadiev A. N., Chernyanskiy S. S., Kovach R. G. 2004, Sfericheskie magnitnye chastitsy kak mikrokomponenty pochv i trassery massoperenosa [Spherical magnetic particles as microcomponents of soils and mass transfer tracers]. Pochvovedenie [Eurasian Soil Science], no. 5, pp. 566–580.

10. Zagurskiy A. M., Ivanov A. V., Shoba S. A. 2009, Submikromorfologiya magnitnykh fraktsiy pochv [Submicromorphology of magnetic fractions of soils]. Pochvovedenie [Eurasian Soil Science], no. 9, pp. 1124–1132.

11. Bobrov V. P. et al. 2000, Pererabotka tekhnogennykh obrazovaniy – effektivnyy put' reabilitatsii gornopromyshlennykh territoriy [Reprocessing of technogenic formations – an effective way of rehabilitation of mining territories], Ekaterinburg, 71 p.

12. Zakharov A. V., Guman O. M., Makarov A. B., Antonova I. A., Li T. I. 2014, Ekologicheskoe sostoyanie okruzhayushchey sredy otvalov chernoy metallurgii (po rezul'tatam monitoringa shlakovogo otvala NTMK) [Ecological condition of the environment of dumps of ferrous metallurgy (based on monitoring of the slag dump of Nizhniy Tagil Metallurgy Plant)]. Izv. UGGU [News of the Ural State Mining University], vol. 3(35), pp. 51–56.

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