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Technical science and innovation

Abstract

Waste, garbage is a mixture of substances, objects and their parts that have lost their consumer properties in the process use and intended for disposal. The purpose of the article is note the main current concepts of the distribution and plastic waste disposal problem and propose its promising solutions. In Uzbekistan, the number of solid utilities waste is 63 million tons per year (about 450 kg per person), up to 25 % of them can be plastic. Plastics are organic materials based on synthetic or natural polymers consisting of monomer units, combined into long macromolecules. The most common plastics are polyvinyl chloride, polypropylene, polycarbonate, polystyrene, polyethylene low and high pressure, etc. To ensure utilization of disposable items, a labeling system has been developed. Most types of plastics are usually well recyclable and recyclable. In Europe up to 50 % of waste is recyclable, and in Russia - no more than 4 %. The article discusses the problems of waste polymeric material decontamination and recycling, which are common among household and technical waste and difficult to dispose of and emit toxic substances into the environment. In particular, the composition, structure and properties of waste plastic bags with a thickness of up to 40 microns, which are increasing day by day, have been studied and a rational method of their use has been proposed. The results of

the research has shown that the waste of unsuitable polyethylene bags contains a source of fuel necessary for the metallurgical industry - hydrocarbons, which can be used as an alternative to traditional fuels used in metallurgical furnace and can be used as a heat energy source. It also provides with useful information on the theoretical foundations of processes that can help increase the economic efficiency of metallurgical plants. Also, the main technological parameters of polyethylene bag recycling and their incineration in metallurgical furnaces were identified. The cost effectiveness of using plastic waste as a fuel in metallurgical processes has been analyzed.

First Page

168

Last Page

176

DOI

https://doi.org/10.51346/tstu-01.21.1-77-0110

References

[1]. Waste incineration in slag melt / V. M. Paretskiy [et al.] // Solid household waste. –2015.

–№ 9. P. 34–39.

[2]. Sister V.G., Mirny A.N. Choice of waste disposal technologies taking into account their composition and properties / V.G. Sister, A. N. Mirny // Solid household waste. –2015. - No. 1. P. 16-21.

[3]. Reducing methane emissions: reports. II Int. conf. (Novosibirsk, June 18-23, 2017). – Novosibirsk: SO RAN, 2017. –672 p.

[4]. Solomin I.A., Bashkin V.N. Choice of the optimal technology for solid waste processing /

A. Solomin, V. N. Bashkin // Ecology and Industry of Russia. –2015. –Sep. P. 42-45.

[5]. Thermal processing - a radical way to neutralize waste / S.V. Alekseenko [et al.] // Innovative technologies - 2001: materials of the international. scientific. seminar (Krasnoyarsk, June 20-22, 2014). –Krasnoyarsk: Krasnoyar. state un-t, 2014. –T. 2. P. 117-122.

[6]. Timoshin V. N. Electronic scrap - a potential source of mercury pollution / V. N. Timoshin, S. I. Yakovlev, A. V. Kochurov // Solid household waste. –2019. –№ 7. P. 34– 37.

[7]. Tugov A. N. European experience of solving the problem of waste in megacities / A. N. Tugov, V. F. Moskvichev, L. G. Fedorov // Solid household waste. - 2019. –№ 7. P. 42- 48.

[8]. Tugov A. N. Domestic thermal power plants for solid waste. Development experience and ways of development / A. N. Tugov, V. F. Moskvichev, A. N. Smirnov // Ecology and Industry of Russia. - 2019. –March. P. 4-7.

[9]. Tyulenev M.A. Tire processing: advantages and disadvantages // Solid household waste.

–2017. –№ 4. P. 42-48.

[10]. Ulanova O.V. Development of the "garbage" industry in Europe // Solid household waste.

–2019. –№ 10. P. 52-59.

[11]. Ulanova O.V. Management of solid household waste: European experience: textbook. allowance. –2019. Part 1. –136 p.

[12]. Feoktistov A. Yu. Alternative fuel from municipal waste // Solid household waste. –2017.

–№ 3. P. 40–45.

[13]. Chekushina E. V. Monitoring of dumps and landfills / E. V. Chekushina, A. A. Kaminskaya // Solid household waste. –2018. –№ 11. P. 10-11.

[14]. Chernova L.N. Problems and solutions: materials of the conference (Ufa, November 12- 16, 2017). –Ufa, 2017. –Ch. 1. P. 66-68.

[15]. Stoik S.G. Utilization of spent batteries: work practice // Ecology and Industry of Russia.

–2018. –Apr. P. 18-22.

[16]. Energotechnological processes and devices of chemical production: collection of articles. scientific. works / G. I. Bagryantsev, R. V. Kotlyarova, L. P. Ryabov, V. E. Chernikov. - Novosibirsk: Institute of Thermophysics SB RAS, 1989. P.17–22.

[17]. Yudin A.G. Conditions of formation and complete destruction of dioxins and furans during the incineration of halogen-containing waste / A.G. Yudin, L. A. Schultz // Ecology and Industry of Russia. –2016. –Sep. – Oct. P. 33–37.

[18]. Khojiev Sh.T., Kadirov N.A., Obidov B.M. Development of Alternative Fuel Production Technology by Recycling Polyethylene Bags up to 40 Microns Thick // Proceedings of an international scientific and technical online conference on ―Challenges and Prospects Innovative Technics and Technologies in the Security Sphere Environment‖, Tashkent, September 17-19, 2020. P. 274 – 276.

[19]. Hojiyev Sh.T., Mirsaotov S.U. Tarkibida yaroqli uglerod saqlagan maishiy chiqindilarni metallurgiya sanoatiga maqsadli yo‗naltirish// ―Ishlab chiqarishga innovatsion texnologiyalarni joriy etish va qayta tiklanadigan energiya manbalaridan foydalanish muammolari‖ mavzusidagi Respublika miqyosidagi ilmiy-texnik anjumanining materiallari to‗plami, Jizzax, 18-oktabr, 2020. 21 – 27 b.

[20]. Xojiyev Sh.T. Ekonomicheskaya effektivnost ispolzovaniya mestnix i alternativnix energeticheskix resursov dlya snijeniya rasxoda prirodnogo gaza na metallurgicheskix predpriyatiyax // Materiali respublikanskoy nauchno- texnicheskoy konferensii «Innovatsionnie razrabotki v sfere nauki, obrazovaniya i proizvodstva – osnova investitsionnoy privlikatelnosti neftegazovoy otrasli» v g. Tashkent, 3 noyabrya 2020 g. S. 413 – 416.

[21]. Khojiev Sh.T., Matkarimov S.T., Narkulova E.T., Matkarimov Z.T., Yuldasheva N.S. The Technology for the Reduction of Metal Oxides Using Waste Polyethylene Materials

// Conference proceedings of ―Metal 2020 29th International Conference on Metallurgy and Materials‖, May 20 – 22, 2020, Brno, Czech Republic, EU. P. 971-978. https://doi.org/10.37904/metal.2020.3592

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