Experimental study on thermal plasma combined treatment for medical waste

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design Pub Date : 2025-05-06 DOI:10.1016/j.cherd.2025.05.010

Yingnan Wang , Haoyang Shi , Shu Wang , Pingyang Wang

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Abstract

A thermal plasma combined treatment of medical waste proposed here combines the advantages of pyrolysis and gasification technologies, which provides an option for the harmless, reduction, and recycling treatment of medical waste. The paper conducts a comprehensive investigation into the process parameters and outcomes, focusing on the impact of reaction temperature, gasification coefficient, and key waste components on treatment efficiency. The results show that higher reaction temperature and gasification coefficient significantly enhance the yield of combustible gases and overall energy efficiency. The calorific value of syngas remained unchanged with the increase of temperature. At the same time, the energy utilization of the system showed a tendency to increase and then decrease with the change of temperature, and the maximum value of about 22.2 % was observed at the temperature of about 1500 K, which was about 4.7 % higher than that of 1300 K. Additionally, certain typical constituents of medical waste contribute markedly to the increase in combustible gas production. The total amount of combustible gas and CO content were higher than that of the respective combustible gas production.

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热等离子体联合处理医疗废物的实验研究

本文提出的热等离子体联合处理医疗废物，结合了热解和气化技术的优势，为医疗废物无害化、减量化、资源化处理提供了一种选择。本文对工艺参数和结果进行了综合研究，重点研究了反应温度、气化系数和关键废弃物组分对处理效率的影响。结果表明，较高的反应温度和气化系数显著提高了可燃气体产率和整体能源效率。合成气的热值随温度的升高而保持不变。同时，随着温度的变化，系统的能量利用率呈现先升后降的趋势，在1500 K左右达到最大值，约为22.2% %，比1300 K高约4.7 %。此外，医疗废物的某些典型成分显著增加了可燃气体的产生。可燃气体总量和CO含量均高于各自的可燃气体产量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Research & Design 工程技术-工程：化工

CiteScore

6.10

自引率

7.70%

发文量

623

审稿时长

42 days

期刊介绍： ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.