Related Experiment Video
Updated: May 21, 2025

The Portable Chemical Sterilizer PCS, D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
Published on: June 29, 2014
Study on the degradation characteristics of PCDD/Fs using Non-thermal Plasma (NTP) technology in full-scale medical
Tongzhe Wang1, Jianbo Guo1, Kaiyue Wang1
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
Abstract:
Flue gas from medical waste incineration is a major source of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Conventional treatment technologies exhibit limited effectiveness in purifying PCDD/Fs in flue gas, indicating the need for further research. Improvements to the existing medical waste incineration flue gas treatment process were implemented based on Non-thermal Plasma (NTP) technology. This study investigated the effectiveness of PCDD/Fs removal and selectivity of NTP reactions in a full-scale medical waste incineration process. The research indicates that: (1) The primary components of PCDD/Fs pollutants in flue gas from medical waste incineration are P5CDFs (predominantly 2,3,4,7,8-P5CDF) and H6CDFs (predominantly 1,2,3,4,7,8-H6CDF, 1,2,3,6,7,8-H6CDF, and 2,3,4,6,7,8-H6CDF). (2) Application of NTP technology can significantly improve the removal efficiency and stability of all PCDD/Fs, achieving a maximum removal rate of 98 %. However, the reaction selectivity of NTP for T4CDDs, T4CDFs, and P5CDFs is relatively lower. (3) In P5CDFs, the predominant component is 2,3,4,7,8-P5CDF, which constitutes 93 %-96 % of the total. Enhancing the treatment efficiency of NTP technology for 2,3,4,7,8-P5CDF represents a promising area for future research optimization. This study clarifies the emission patterns of PCDD/Fs in flue gas from medical waste incineration and identifies the advantages and limitations of the NTP process in PCDD/Fs treatment.
Related Concept Videos
Methods of Sterilization II: Chemical Methods
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Methods of Sterilization I: Physical Methods
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...

