Section

Geoecology

Title

DESTRUCTION OF USED ELECTROISOLATING LIQUIDS FROM TRANSFORMERS IN THE MAGNESIUM OXIDE — WATER-OXYGEN MEDIUM

Сontributors

Z. K. Maymekov, Academician of the Kyrgyzstan Engineering Academy, Dr., Prof., Kyrgyz-Turkish Manas University, Bishkek,

Kyrgyz Republic, This email address is being protected from spambots. You need JavaScript enabled to view it.;

D.       A. Sambaeva, Dr., Prof., Institute of Mining and Mining Technologies named after academician U. Asanaliev of KTU, Bishkek,

Kyrgyz Republic, This email address is being protected from spambots. You need JavaScript enabled to view it.;

U. Z. Maymekov, Moscow Institute Physics and Technology, Moscow, Russian Federation;

Z. B. Izakov, Kyrgyz-Turkish Manas University, Bishkek, Kyrgyz Republic;

K. A. Kemelov, Kyrgyz-Turkish Manas University, Bishkek, Kyrgyz Republic, This email address is being protected from spambots. You need JavaScript enabled to view it.,

M. B. Moldobayev, КТУ Kyrgyz-Turkish Manas University, Bishkek, Kyrgyz Republic, This email address is being protected from spambots. You need JavaScript enabled to view it..

Abstract

The Kyrgyz Repub1ic has had waste (used) po1y- ch1orinated biphenyls in se1ected production facilities and equipment of the e1ectrica1 industry so far. Taking  into account this consideration, physical-chemical properties were studied. In order to obtain necessary information about the composition of emissions during the destruction processes of polychlorinated biphenyl containing electrical insulating waste, separate fragmentary elements of the “Sovol” were studied at different media: magnesium oxide, water and oxygen . The analysis was carried out at a wide range of temperature (T = 273—3100 К) and at 0,1 MPa pressure. The physical-chemical and energy parameters of the conversion process and gas phase compositions which were formed during the thermal destruction of individual elements of polychlorinated bi-phenyls were determined. The influence of temperature on the concentration of gaseous substances formed during the decomposition was studied: C12H7Cl13, C12H6Cl14? C12H5Cl15, C12H4Cl16, C12H3Cl17. It is noted that polychlorinated biphenyls in steam- oxygen medium were exposed to oxidation with the formation of various low-molecular chlorine-containing particles.

Graphical dependencies of the concentration of the individual low-molecular components in magnesium- water-oxygen oxide system on the destruction temperature, the dynamic conductivity of the system, the number of the condensed phase, as well as the thermodynamic сharacteristics (total enthalpy, total internal energy, entropy) and Prandtl number were plotted.

Based on these results, the “Sovol” decomposition scheme in the magnesium oxide, water and oxygen were suggested. The temperature limits of the formation of hydrogen, oxygen, carbon, chlorine, magnesium containing components and the particles in the gas-liquid medium were determined.

Keywords

Sovol, conversion, magnesium oxide, water, oxygen, environment.

References

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