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Waste Disposal & Sustainable Energy
Waste Disposal & Sustainable Energy  2019, Vol. 1 Issue (2): 91-98    DOI: 10.1007/s42768-019-00009-9
    
垃圾焚烧过程中二噁英排放与垃圾分类和燃烧工况关联关系的研究
Xiaodong Li1, Yunfeng Ma1, Mengmei Zhang1, Mingxiu Zhan2, Peiyue Wang1, Xiaoqing Lin1, Tong Chen1, Shengyong Lu1, Jianhua Yan1*
1.State Key Laboratory for Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, China  2.College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, China
Study on the relationship between waste classification, combustion condition and dioxin emission from waste incineration
Xiaodong Li1, Yunfeng Ma1, Mengmei Zhang1, Mingxiu Zhan2, Peiyue Wang1, Xiaoqing Lin1, Tong Chen1, Shengyong Lu1, Jianhua Yan1*
1.State Key Laboratory for Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, China  2.College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, China
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摘要： 目前，中国的生活垃圾仍然以混合收集为主,生活垃圾成分复杂多变，燃烧特性迥异，难以通过优化燃烧的方法来减少污染。一氧化碳（CO）的排放浓度作为衡量燃烧优劣的指标，其准确性仍存在一定的争议。本文研究了垃圾分类、焚烧工况和二噁英（PCDD/Fs）排放量之间的关系，并提出烟气中的CO浓度不能作为衡量燃烧效率和安全的唯一指标。考虑到二噁英的生成与不完全燃烧产物之间存在着密切关系，相对较低浓度的CO并不能作为一个可靠的指标来衡量配有“布袋除尘器+活性炭喷射”系统的焚烧炉二噁英排放是否能达到国家标准。因此，本文的目的不仅是为了通过垃圾分类，从源头上减少二噁英和其他污染物的排放，也是为了通过焚烧垃圾的源头减量，来达到保护环境和提高生活垃圾焚烧发电厂发电效率。随着垃圾处置需求的持续快速增长，使得垃圾分类的源头控制方法成为未来垃圾焚烧发电厂二噁英排放控制不可或缺的一部分。
关键词： 焚烧;  垃圾分类;  一氧化碳;  二噁英;  排放    
Abstract: Domestic waste in China is mainly collected as a combination of different types of materials. The components are variable and complex, with very different combustion characteristics making it difficult to optimize the burning to reduce pollution. There are still some controversies about the accuracy of using carbon monoxide (CO) emission to characterize waste incineration performance. Here, we investigated the relationship between waste classification, incineration conditions and dioxin emission and concluded that the concentration of CO in flue gas could not be used as the only criterion of combustion efficiency and safety. Considering the close relationship between the formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and products of incomplete combustion, the relatively low concentrations of CO are not a reliable indicator that an incinerator equipped with an activated carbon injection system and fabric filter could achieve the national standards for PCDD/F emission. The goal, therefore, is not only to lower the emission of PCDD/Fs and other pollutants through classifying the waste components at the source, but also to reduce the need for the treatment of incinerated waste to protect the environment and to increase the power generation efficiency of municipal solid waste incineration (MSWI) plants. As the demand for waste disposal continues to rapidly increase, the need for a safe waste incineration system with dioxin emission controls makes the classification of waste an indispensable part of future MSWI systems.
Key words: Incineration    Waste classification    CO    Dioxin    Emission
收稿日期: 2019-05-30 出版日期: 2019-11-01
通讯作者: Jianhua Yan     E-mail: yjh_wdse@zju.edu.cn
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Xiaodong Li
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引用本文:

Xiaodong Li, Yunfeng Ma, Mengmei Zhang, Mingxiu Zhan, Peiyue Wang, Xiaoqing Lin, Tong Chen, Shengyong Lu, Jianhua Yan. Study on the relationship between waste classification, combustion condition and dioxin emission from waste incineration. Waste Disposal & Sustainable Energy, 2019, 1(2): 91-98.

链接本文:

http://www.zjujournals.com/wdse/CN/10.1007/s42768-019-00009-9    或    http://www.zjujournals.com/wdse/CN/Y2019/V1/I2/91

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