Study on pyrolysis of typical medical waste materials by using TG-FTIR analysis

被引：155

作者：

Zhu, H. M. ^{[1
]}

Yan, J. H. ^{[1
]}

Jiang, X. G. ^{[1
]}

Lai, Y. E. ^{[1
]}

Cen, K. F. ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2008年 / 153卷 / 1-2期

关键词：

medical waste; pyrolysis; TG-FTIR analysis;

D O I：

10.1016/j.jhazmat.2007.09.011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Pyrolysis of certain medical waste materials was studied using thermogravimetric analyzer coupled with Fourier transform infrared spectroscopy (TG-FTIR). Pyrolysis characteristics of three common materials were discussed. The pyrolysis of absorbent cotton turned out to be the most concentrative, followed by medical respirator and bamboo stick. From TG and DTG curves, pyrolysis of these three materials occurred in single, two and three stages respectively. Evolved volatile products from all these three materials included 2-butanone, benzaldehyde, formic acid, acetic acid, hydrocarbon, carbon dioxide, carbon monoxide, and water; whereas no sulphur dioxide, ammonia and hydrogen cyanide was detected. There are several differences in yield among them. However, the study in this paper is essential for medical waste pyrolysis model, the TG-FTIR approach is potential to provide valuable inputs for predictive modeling of medical waste pyrolysis. More studied are needed to get the kinetic parameters and pyrolysis models that can predict yields and evolution patterns of selected volatile products for CFD applications. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：670 / 676

页数：7

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