[1]孟庆敏,陈晓平,张亮.空气气氛下医疗废物热分解特性[J].东南大学学报(自然科学版),2011,41(6):1236-1240.[doi:10.3969/j.issn.1001-0505.2011.06.021]
 Meng Qingmin,Chen Xiaoping,Zhang Liang.Decomposition characteristics of medical waste in air[J].Journal of Southeast University (Natural Science Edition),2011,41(6):1236-1240.[doi:10.3969/j.issn.1001-0505.2011.06.021]
点击复制

空气气氛下医疗废物热分解特性()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第6期
页码:
1236-1240
栏目:
能源与动力工程
出版日期:
2011-11-20

文章信息/Info

Title:
Decomposition characteristics of medical waste in air
作者:
孟庆敏1陈晓平1张亮2
(1东南大学能源与环境学院,南京 210096)(2浙江富春江环保热电股份有限公司,富阳 311418)
Author(s):
Meng Qingmin1Chen Xiaoping1Zhang Liang2
(1School of Energy and Environment, Southeast University, Nanjing 210096, China)
(2Zhejiang Fuchun River Green Power Co. Ltd., Fuyang 311418, China)
关键词:
医疗废物 输液管 口罩 热分解
Keywords:
medical waste perfusion tube respirator thermal decomposition
分类号:
TK16
DOI:
10.3969/j.issn.1001-0505.2011.06.021
摘要:
利用热重(TG)和傅里叶变换红外光谱(FTIR)联用技术对医疗废物中的塑料类(输液管)、化纤类(口罩)及其混合物进行空气气氛下热分解实验,研究单组分及混合物热分解的失重特性,并对热分解气体产物进行定性分析.结果表明:与N2气氛相比,塑料类(输液管)失重峰数量增多,且第一个失重峰峰值增大明显; 化纤类(口罩)热分解起始温度提前约150℃,失重峰出现位置提前约100℃.化纤类(口罩)的热分解产物主要有CO2、H2O、CO、烷烃类、醛类和羧酸类等; 塑料类(输液管)的热分解产物主要有CO2、炔类、醛类、酸类和HCl等,其中HCl的析出温度区间为304~409℃.混合物的热分解特性反应了各单组分的热分解特性,且组分混合对HCl析出影响不大.最后,通过求解空气气氛下塑料类(输液管)和化纤类(口罩)热分解动力学参数,为控制空气氧化处理医疗废物研究提供了理论依据及可靠的动力学子模型.
Abstract:
Thermal decomposition of certain medical waste and its mixture in the air was studied using the thermo-gravimetric(TG) analyzer coupled with the Fourier transform infrared spectroscopy(FTIR). The gravimetric characteristics of each species and mixture and the qualitative analysis of evolved volatile products were investigated. Compared with thermal decomposition in nitrogen (N2), for perfusion tube, the peak number of differential thermogravimetric (DTG) curve increases and the first peak value increases obviously. For respirator, the initial decomposition temperature drops down about 150℃, and the peak appears earlier about 100℃. Evolved volatile products from respirator include CO2, H2O, CO, hydrocarbon, aldehyde and acid, and products from perfusion tube include CO2, alkyne, aldehyde, acid and hydrogen chloride (HCl). Decomposition temperature of HCl in perfusion tube is between 304℃ and 409℃. The agravic characteristics of mixture reflect that of each species in the mixture. Also, mixture has no effect on decomposition of HCl. Finally, reaction kinetic parameters of perfusion tube and respirator in air are calculated which provides a theoretical basis and reliable sub-models for the controlled air oxidation of medical waste.

参考文献/References:

[1] 国家环境保护总局. 医疗废物集中焚烧处置工程建设技术要求(试行)[EB/OL].(2004-01-19)[2011-08-26]. http://www.zhb.gov.cn/eic/649086798147878912/20040203/1045470.shtml.
[2] Duan H,Huang Q,Wang Q,et al. Hazardous waste generation and management in China: a review[J]. Journal of Hazardous Materials,2008,158(2/3):221-227.
[3] 王宇峰,李晓东,金剑,等. 水热法降解医疗废物焚烧飞灰中二恶英的研究[J]. 中国电机工程学报,2010,30(26):56-61.
  Wang Yufeng,Li Xiaodong,Jin Jian,et al. Hydrothermal decomposition of polychlorinated divenzo-p-dioxins and dibenzofurans in fly ash of medical waste incinerator[J]. Proceedings of the CSEE,2010,30(26):56-61. (in Chinese)
[4] Yang Y B, Sharifi V N, Swithenbank J. Substoichiometric conversion of biomass and solid wastes to energy in packed beds[J]. AIChE Journal,2006,52(2):809-817.
[5] Benkoussas B,Consalvi J L,Porterie B,et al. Modelling thermal degradation of woody fuel particles[J]. International Journal of Thermal Sciences,2007,46(4):319-327.
[6] Jenkins B M,Baxter L L,Miles T R. Combustion properties of biomass[J]. Fuel Processing Technology,1998,54(1/2/3):17-46.
[7] Liang L G,Sun J,Fei J,et al. Experimental study on effects of moisture content on combustion characteristics of simulated municipal solid wastes in a fixed bed[J]. Bioresource Technology,2008,99(15):7238-7246.
[8] Marinkovic N,Vitale K,Holcer N J,et al. Management of hazardous medical waste in Croatia[J]. Waste Management,2008,28(6):1049-1056.
[9] Deng N,Zhang Y F, Wang Y. Thermogravimetric analysis and kinetic study on pyrolysis of representative medical waste composition[J]. Waste Management,2008,28(9):1572-1580.
[10] 王乔力,张于峰,马洪亭,等. 医疗垃圾的热解特性[J]. 环境卫生工程,2006,14 (3):40-42.
  Wang Qiaoli,Zhang Yufeng,Ma Hongting,et al. Pyrolysis characteristics of medical waste[J]. Environmental Sanitation Engineering,2006,14(3):40-42. (in Chinese)
[11] 祝红梅,蒋旭光,池涌,等. 热重-红外联用分析医疗垃圾的热动力学特性[J]. 工程热物理学报,2008,29 (3):519-522.
  Zhu Hongmei,Jiang Xuguang,Chi Yong,et al. Study on kinetic characteristics of medical waste by using TG-FTIR analysis[J]. Journal of Engineering Thermophtsics,2008,29(3):519-522. (in Chinese)
[12] 孙振鹏,李晓东,沈逍江,等. 医疗垃圾典型组分热解和气化的实验研究[J]. 电站系统工程,2005,21(5):13-18.
  Sun Zhenpeng,Li Xiaodong,Shen Xiaojiang,et al. Experimental study of pyrolysis and gasification on typical component of medical waste[J]. Power System Engineering,2005,21(5):13-18. (in Chinese)
[13] 翁诗甫. 傅里叶变换红外光谱仪[M]. 北京:化学工业出版社,2005.
[14] Hoyos A,Cobo M,Aristizábal B,et al. Total suspended particulate (TSP), polychlorinated dibenzodioxin(PCDD) and polychlorinated dibenzofuran (PCDF) emissions from medical waste incinerators in Antioquia[J]. Colombia Chemosphere,2008,73(1):137-142.
[15] 沈兴. 差热、热重分析与等温固相反应动力学[M]. 北京:冶金工业出版社,1995.

备注/Memo

备注/Memo:
作者简介: 孟庆敏(1984—),女,博士生; 陈晓平(联系人),男,博士,教授,博士生导师,xpchen@seu.edu.cn.
引文格式: 孟庆敏,陈晓平,张亮.空气气氛下医疗废物热分解特性[J].东南大学学报:自然科学版,2011,41(6):1236-1240. [doi:10.3969/j.issn.1001-0505.2011.06.021]
更新日期/Last Update: 2011-11-20