生活垃圾中掺烧医疗废物对烟气指标的影响研究  

Study on the Influence of Co-combustion of MedicalWaste in Domestic Waste on Flue Gas Index

作　　者：周纯洁 易玉龙 杨盛凯 ZHOU Chunjie;YI Yulong;YANG Shengkai(Changsha Huiyang Environmental Protection Tech Co.,Ltd.,Changsha 410001,China)

机构地区：[1]长沙汇洋环保技术股份有限公司,湖南长沙410001

出　　处：《绿色矿冶》2024年第4期85-89,共5页Sustainable Mining and Metallurgy

摘　　要：本文以某市生活垃圾和高温蒸煮处理后医疗废物为研究对象,通过对比分析两者的理化性质、焚烧技术指标、焚烧烟气排放标准限值,并进行生活垃圾和医疗废物比例1∶50的掺烧试验,探讨生活垃圾中掺烧医疗废物的可行性及其影响。分析结果表明,生活垃圾和医疗废物组分、焚烧技术标准要求存在一定差异,主要是因为生活垃圾和医疗废物两者的组分含量不同,但两者在烟气净化处理系统、炉渣的处置和热能利用等方面的要求基本相同;掺烧后烟气排放中SO_(2)、NO_(x)、HCl和二噁英的含量有所增加,但仍控制在国标范围内;掺烧对烟气中CO及颗粒物含量无明显影响;掺烧后烟气净系统耗材石灰和尿素的使用量增加上述结果验证了生活垃圾中掺烧医疗废物的可行性。In this paper,domestic waste and medical waste after high-temperature cooking treatment in a city were taken as the research objects.By comparing and analyzing the physical and chemical properties,incineration technical indicators,incineration flue gas emission standard limits of the two,and conducting a mixed combustion test of domestic waste and medical waste at a ratio of 1∶50,the feasibility and impact of co-firing medical waste in domestic waste were discussed.The analysis results show that there are some differences in the components and incineration technical standards of domestic waste and medical waste,mainly because the components of domestic waste and medical waste are different,but the requirements of the two in flue gas purification treatment system,slag disposal and thermal energy utilization are basically the same.The contents of SO_(2),NO_(x),HCl and dioxins in flue gas emissions increased after co-combustion,but they were still controlled within the national standard.Co-firing has no obvious effect on the content of CO and particulate matter in flue gas.The consumption of lime and urea in the flue gas purification system increased after co-firing The above results verify the feasibility of co-combustion medical waste in domestic waste.

关 键 词：医疗废物 生活垃圾 掺烧 烟气指标 

分 类 号：X799.3[环境科学与工程—环境工程]