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PYROLYSIS AND OXIDATION KINETICS OF MEDICAL WASTES

机译:医用废物的热解和氧化动力学

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On account of the infectious properties of medical wastes, most are treated carefully by incineration to ensure proper destruction of pathogens. However, the behaviors of medical wastes are not well understood during the process of incineration. Thus, the aim of this work is to investigate pyrolysis and oxidation kinetics of the medical wastes, including cottons, gauzes, saline bottles, stomach medicines with the thermal gravimetric analysis (TGA) method. Experimentally, the degradation of cottons and saline bottles in pyrolysis and oxidation occurred at about 530 K and 510 K as well as 630 K and 530 K, respectively. Oxygen affects the degradation reaction of cottons and saline bottles at lower temperatures. The rate equations of the first stage of thermal treatment in different oxygen contents also showed that oxygen would decrease the activation energies of decomposition of cottons, gauzes and saline bottles. But the presence of oxygen did not influence the decomposition of stomach medicines at temperatures below 550 K, while only pyrolysis took place.
机译:考虑到医疗废物的传染性,大多数焚化炉都经过仔细处理,以确保适当消灭病原体。然而,在焚化过程中对医疗废物的行为还知之甚少。因此,这项工作的目的是用热重分析(TGA)方法研究医疗废物的热解和氧化动力学,包括棉,纱布,盐瓶,胃药。实验上,棉花和盐瓶在热解和氧化过程中的降解分别发生在530 K和510 K以及630 K和530 K处。氧气会在较低温度下影响棉花和盐瓶的降解反应。热处理第一阶段在不同氧气含量下的速率方程还表明,氧气会降低棉,纱布和盐瓶分解的活化能。但是氧气的存在并不会影响在低于550 K的温度下胃药的分解,而只会发生热解。

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