Green removal of hospital-medical wastes by designed integrated pyrolysis-incineration system

Document Type : Research Article


1 Department of Chemistry, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran

2 Taher shimi-e- Miyaneh Co., Miyaneh, Iran


< p>The main purpose of the present paper is to introduce the designed integrated pyrolysis-incinerator system for green removing the hospital-medical wastes (nosocomial wastes). The pyrolysis unit and incinerator are two main component of the system. The results showed that the wastes convert to a) valuable products such as hydrocarbons, non-condensable gases, carbon black and scrap metal and glass, b) the safe flue gasses according EU emission limit. In the incinerator section, only drug mixture including solutes, liquids and powders previously dissolved in water burn at temperature of 850-950 oC. The some physical properties of the obtained hydrocarbons produced from pyrolysis unit such as density (in 15.6 oC), flash point and pour point are 0.81, free and


[1] J. Liu, X. Luo, S. Yao, Q. Li and W. Wang, Influence of flue gas recirculation on the performance of incineratorwaste heat boiler and NOx emission in a 500 t/d waste-to-energy plant, Waste Management 105 (2020) 450-456.
[2] C.-S. Li and F.-T. Jenq, Physical and Chemical Composition of Hospital Waste, Infection Control & Hospital Epidemiology, Volume 14, Issue 3, March 1993, pp. 145-150.
[3] T. Tiller and A. Linscott, Evaluation of a Steam Autoclave for Sterilizing Medical Waste at a University Health Center, American Journal of Infection Control Volume 32, Issue 3, May 2004, Page E9.
[4] J. Bujak, Experimental study of the energy efficiency of an incinerator for medical waste, Applied Energy 86 (2009) 2386-2393.
[5] K. Holmgren Role of a district-heating network as a user of waste-heat supply from various sources–the case of Göteborg. Appl Energy 2006; 83:1351-67.
[6] A. Porteous, Energy from waste incineration–a state of the art emissions review with an emphasis on public acceptability. Appl Energy 2001; 70: 157-67.
[7] C.-C. Tzeng, Y.-Y. Kuo, T.-F. Huang, D.-L. Lin and Y-J. Yu, Treatment of radioactive wastes by plasma incineration and vitrification for final disposal, Journal of Hazardous Materials 58, 1998. 207-220.
[8] A. Khani, S. Mohammadi and H. Rasoolzadeh, Converting polymeric mixture waste of a car breaker company to hydrocarbon by designed high performance co-pyrolysis system, Chemical Review and Letters, in press.
[9] L. Gašparovič, L. Šugár, L. Jelemenský and J. Markoš, Catalytic gasification of pyrolytic oil from tire pyrolysis process. Chem Pap.67 (2013):1504-1513.
[10] W. D. Bigelow and J. R. Esty, The Thermal Death Point in Relation to Time of Typical Thermophilic Organisms, The Journal of Infectious Diseases, 27 (1920) 602-617.
[11] R.S. Bie, S.Y. Li, and H. Wang, Characterization of PCDD/Fs and heavy metals from MSW incineration plant in Harbin. Waste Manage. 27 (2007), 1860-1869.
[12] H.J. Zhang, Y.W. Ni, J.P. Chen and Q. Zhang, Influence of variation in the operating conditions on PCDD/F distribution in a full-scale MSW incinerator. Chemosphere 70 (2008) 721-730.
[13] I.K. Hosein, H.D., L.E. Jenkins and J.T. Magee, Clinical significance of the emergence of bacterial resistance in the hospital environment. J. Appl Microbiol Biotechnol, 2002. 92: p. 90S-97S.
[14] H. Gao, Y. Ni, H. Zhang, L. Zhao, N. Zhang, X. Zhang, Q. Zhang, J. Chen, Stack gas emissions of PCDD/Fs from hospital waste incinerators in China, Chemosphere 77 (2009) 634-639.
[15] B.K. Singh and N. Shrivastava, Exhaust Gas Heat Recovery for C.I Engine-A Review, International journal of engineering sciences and research technology, 3 (2014), 27-32.
[16] H. Jaber, M. Khaled, T. Lemenand and M.Ramadan, Short Review on Heat Recovery from Exhaust Gas, AIP Conference Proceedings 1758, 030045 (2016).
[17] M.F Remeli, L. Kiatbodin, B. Singh, K. Verojporn, A. Date and A. Akbarzadeh, Power generation from waste heat using Heat Pipe and Thermoelectric Generator, Energy Procedia, 75, 645–650 (2015).
[18] H. Hajabdollahia, M. Naderib, and S. Adimic, comparative study on the shell and tube and gasket-plate heat exchangers: The economic viewpoint, Applied Thermal Engineering, 92, 271–282 (2016).