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Regularities of Сhlorine Distribution During Thermal Disposal of Chlorine-Containing Medical Waste
https://doi.org/10.18412/1816-0395-2022-11-13-19
Abstract
The results of an experimental study of the regularities of the distribution of chlorine between solid and gaseous products during the thermal decomposition of a mixture of chlorine-containing medical waste during their pyrolysis and incineration are presented. It is shown that under thermal action on the chlorine-containing components of the mixture, chlorine is partially converted into gaseous products in the form of Hcl, and partially retained by the coke-ash residue. During pyrolysis, the bulk of chlorine remains in the solid phase. It is concluded that the retention of a significant proportion of chlorine by solid products of thermal decomposition significantly reduces the possibility of dioxin synthesis at the stage of flue gas cooling due to the low content of free chlorine in them.
Keywords
medical waste,
pyrolysis,
incineration,
chlorine,
gas-vapor mixture,
coke-ash residue,
flue gases,
dioxins
About the Authors
G.I. Dvoskin
G.M. Krzhizhanovsky Power Engineering Institute
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Research Fellow
V.F. Kornileva
G.M. Krzhizhanovsky Power Engineering Institute
Russian Federation
Russian Federation
Cand. Sci. (Chem.), Senior Research Fellow
M.A. Starnikov
OOO "Pure Life"
Russian Federation
Russian Federation
General Director
Ya.D. Pudova
Joint Institute for High Temperatures of the Russian Academy of Sciences
Russian Federation
Russian Federation
Research Assistant
G.Ya. Gerasimov
Moscow State University
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Leading Research Fellow
References
1. Hossain M.S., Santhanam A., Norulaini N.A.N., Omar A.K.M. Clinical solid waste management practices and its impact on human health and environment — a review. Waste Manage. 2011. V. 31. No. 4. P. 754—766.
2. Солдатенко Н.А., Карманов В.В., Вайсман Я.И., Самутин Н.М. Обеспечение безопасности при термической утилизации медицинских отходов, содержащих поливинилхлорид. Гигиена и санитария. 2013. Т. 92. № 1. С. 42—46.
3. Altarawneh M., Dlugogorski B.Z., Kennedy E.M., Mackie J.C. Mechanisms for formation, chlorination, dechlorination, and destruction of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Prog. Energy Combust. Sci. 2009. V. 35. No. 3. P. 245—274.
4. Windfeld E.S., Brooks M. Medical waste management – A review. J. Environ. Manage. 2015. V. 163. No. 1. P. 98—108.
5. Na D., Yu-feng Z., Yan W. Thermogravimetric analysis and kinetic study on pyrolysis of representative medical waste composition. Waste Manage. 2008. V. 28. No. 9. P. 1572—1580.
6. Солдатенко Н.А., Васюков В.В., Халтурин В.Г. Термическая утилизация полимерных отходов, содержащих поливинилхлорид. Экология и промышленность России. 2009. № 10. С.54—56.
7. Horikawa S., Takai Y., Ukei H., Azuma N., Ueno A. Chlorine gas recovery from polyvinyl chloride. J. Anal. Appl. Pyrol. 1999. V. 51. No. 1—2. P. 167—175.
8. Kuramochi H., Nakajima D., Goto S., Sugita K., Wu W., Kawamoto K. HCl emission during co-pyrolysis of demolition wood with a small amount of PVC film and the effect of wood constituents on HCl emission reduction. Fuel, 2008 V. 87. No. 13—14. P. 3155—3157.
9. Патент № 2760859 РФ. Способ и устройство для закалки и очистки высокотемпературных газов от твёрдых частиц. Бирюков Я.А., Двоскин Г.И., Зройчиков Н.А. Лунин К.А., Фадеев С.А. Заявл. 10.12.2020. Опубл. 01.12.2021. Бюл. № 34.
10. Лунин К.А., Зройчиков Н.А., Фадеев С.А. Разработка экологически чистых технологий пиролиза органических соединений. Теплоэнергетика. 2020. № 9. С. 20—26.
11. Castro A., Soares D., Vilarinho C., Castro F. Kinetics of thermal de-chlorination of PVC under pyrolytic conditions. Waste Manage. 2012. V. 32. No. 5. P. 847—851.
12. Солдатенко Н.А., Вайсман Я.И. Снижение эко[1]логической нагрузки при обращении с отходами лечебно-профилактических учреждений. Пермь: Изд-во Пермского гос. техн. ун-та, 2009. 192 с.
13. Ma W., Wenga T., Frandsen F.J., Yan B., Chen G. The fate of chlorine during MSW incineration: Vaporization, transformation, deposition, corrosion and remedies. Prog. Energy Combust. Sci. 2020. 76. No. 100789. P. 1—39.
14. Gerasimov G. Modeling study of polychlorinated dibenzo-p-dioxins and dibenzofurans behavior in flue gases under electron beam irradiation. Chemosphere. 2016. V. 158. No. 1. P. 100—106.
15. Gerasimov G. Comparative analysis of PCDD/Fs formation during pyrolysis and incineration of medical waste. IOP Conf. Ser.: Earth Environ. Sci. 2019. V. 272. No. 022161. P. 1—6.
Review
For citations:
Dvoskin G., Kornileva V., Starnikov M., Pudova Ya., Gerasimov G. Regularities of Сhlorine Distribution During Thermal Disposal of Chlorine-Containing Medical Waste. Ecology and Industry of Russia. 2022;26(11):13-19. (In Russ.) https://doi.org/10.18412/1816-0395-2022-11-13-19
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