Chien-Chang Liao1,2, Jhong-Lin Wu3, Ya-Fen Wang4, Kuo-Lin Huang  5, Shih-Wei Huang6,7, Yi-Ming Kuo This email address is being protected from spambots. You need JavaScript enabled to view it.8 

1 Depart of hepatogastroenterology, Tainan Municipal Hospital, Tainan 701, Taiwan
2 Department of Environmental and Occupational Health, National Cheng Kung University, Tainan 701, Taiwan
3 Environmental Resource Management Research Center, Cheng Kung University, Tainan 709, Taiwan
4 Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
5 Department of Environmental Engineering and Science, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
6 Institute of Environmental Toxin and Emerging Contaminant, Cheng Shiu University, Kaohsiung 833, Taiwan
7 Center for environmental Toxin and Emerging Contaminant Research, Cheng Shiu University, Kaohsiung 833, Taiwan
8 Department of Safety Health and Environmental Engineering, Chung Hwa University of Medical Technology, Tainan 717, Taiwan


Received: September 16, 2023
Revised: January 15, 2024
Accepted: January 19, 2024

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.230192  

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Cite this article:

Liao, C.C., Wu, J.L., Wang, Y.F., Huang, K.L., Huang, S.W., Kuo, Y.M. (2024). Advanced Scrubbing/Filtration Devices for Pollution Control in Medical Laboratory Waste Incineration System. Aerosol Air Qual. Res. https://doi.org/10.4209/aaqr.230192


HIGHLIGHTS

  • The advanced scrubbing/filtration system provided excellent control of condensable particulate matter.
  • The corrosion caused by HCl was eliminated thanks to the two-stage scrubbing process.
  • Integration of waste liquid injection with the incinerator improves the efficiency of combustion.
 

ABSTRACT


This research investigated the release of pollutants from a medical laboratory waste incineration system and assessed the effectiveness of advanced scrubbing and filtration devices. Samples of flue gas, fly ash, bottom ash, scrubbing wastewater, and sludge were collected for analysis. By introducing liquid waste solvent into the primary combustion chamber, it is possible to achieve an average incineration temperature of over 950°C, ensuring a combustion efficiency of 99.93%. The study findings indicate that the use of advanced scrubbing/filtration devices effectively removed pollutants, resulting in pollutant concentrations in the stack flue gas that met emission standards. The system effectively protects the fabric filter against acid gas corrosion, as demonstrated by the removal of HCl at a rate exceeding 99.99%. Additionally, the two-stage scrubbing process involves converting condensable particulate matter (CPM) into filterable particulate matter (FPM) by reducing the temperature of the flue gas to 70°C. The fabric filter effectively removed FPM in a sequential manner. Therefore, the advanced scrubbing/filtration devices demonstrated exceptional efficacy in removing FPM and CPM, with removal efficiencies surpassing 99.8%.


Keywords: Filterable particulate matter, Condensable particulate matters, Incineration system, Medical laboratory waste




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