Thermal and environmental analysis of an infectious medical waste-to-energy

Sustainable Chemistry for Climate Action Pub Date : 2024-03-19 DOI:10.1016/j.scca.2024.100039

Chanansith Suvarnabol , Nattaporn Chaiyat

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Abstract

This work presents an infectious medical waste-to-energy (IMWtE) thermal and environmental analysis using combined heat and power (CHP) technology. Steam sterilization can be operated with an infectious medical waste (IMW) of 375 kg/h⋅unit, a maximum per day of 12,000 kg/day for double sterilization units, and a running time of 16 h/day. The CHP system uses a dried IMW of 797 kg/h, generating a power output of 128.98 kW_e, providing a drying heat of 382.91 kW, and achieving an overall system efficiency of 8.45 %. Results are obtained for a life cycle assessment (LCA) of the IMWtE by CHP system technology. The endpoint effectiveness comprises considerations of human health: 2.83E+01 DALY, ecosystem quality is represented value of: 9.32E+00 Species⋅y, and natural resource value of: 1.08E+06 USD, all of these are fundamentally linked to the utilization of steel, copper, paint, and gypsum. The LCA impacts are primarily due to the operation phase (93 %), with the smaller contribution of the decommissioning phase (4 %), and the construction phase (3 %), respectively.

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传染性医疗废物变能源的热分析和环境分析

本研究利用热电联产（CHP）技术对传染性医疗废物变能源（IMWtE）进行了热能和环境分析。蒸汽灭菌可在感染性医疗废物（IMW）为 375 公斤/小时⋅单位的条件下运行，双灭菌装置每天最多可灭菌 12,000 公斤，运行时间为 16 小时/天。热电联产系统使用的干燥 IMW 为 797 公斤/小时，发电量为 128.98 kWe，提供的干燥热量为 382.91 kW，系统总效率为 8.45%。热电联产系统技术的 IMWtE 的生命周期评估（LCA）结果已经得出。终点效益包括对人类健康的考虑：2.83E+01 DALY，生态系统质量的代表值为9.32E+00 Species⋅y，以及自然资源价值：1.08E+06 美元，所有这些都与钢铁、铜、油漆和石膏的使用密切相关。生命周期评估的影响主要来自运营阶段（93%），退役阶段（4%）和施工阶段（3%）的影响较小。

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

Sustainable Chemistry for Climate Action

CiteScore

2.30

自引率

0.00%

发文量