The impact of pollutant emissions from co-incineration of industrial waste in municipal solid waste incinerators

被引：32

作者：

Cai, Peng-Tao ^{[1
]}

Chen, Tong ^{[1
,2
]}

Chen, Bei ^{[1
]}

Wang, Yu-Chun ^{[1
]}

Ma, Zeng-Yi ^{[1
]}

Yan, Jian-Hua ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Thermal Power Engn, China State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ, Jiaxing Res Inst, Jiaxing 314051, Zhejiang, Peoples R China

来源：

FUEL | 2023年 / 352卷

基金：

中国国家自然科学基金;

关键词：

Industrial waste; Flue gas pollutants; Heavy metals; Influencing factors; Co; -incineration; FLY-ASH;

D O I：

10.1016/j.fuel.2023.129027

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A large amount of industrial solid waste (including waste plastics, textiles, wood, etc., which are byproducts of industrial production) urgently needs to be treated. Incineration is undoubtedly the most efficient and convenient method. The existing municipal solid waste incineration plants can be transformed to burn such industrial wastes. However, the potential risks associated with high levels of heavy metals in industrial waste and the air pollution caused by co-incineration pose significant challenges to the co-incineration disposal of industrial solid waste. The change of physical and chemical properties of municipal solid waste and the emission characteristics of flue gas pollutants after co-incineration of industrial waste were studied by means of material flow simulation and experiment. In addition, experiments were designed to study the effects of temperature, calcium sulfur ratio and chlorine content on heavy metal emission during the incineration of industrial waste. The results showed that co-incineration of a certain proportion of industrial waste significantly increased the calorific value of municipal solid waste, but excessive mixing of plastic and paper industrial waste would increase the ash content. Co-incineration of plastic industrial waste can significantly increase HCl, and with the increase of temperature, the transformation of Cl to HCl is more thorough. The increase of temperature can promote the migration of Cr, Pb and Se elements to the gas phase. When Cr, Pb, and Se elements are present in the gas phase, they can combine with other gases and aerosols to form particulate matter and toxic substances, causing air pollution. When Ca/S is 1, Ba, Mn, Ni, Zn can effectively reduce the retention rate of elements in the ash. Under certain conditions, chlorine in industrial waste plastics will react with Zn to form tiny particles and low boiling point chlorides, which will increase its volatility. The mineral components in the ash can also be used for making ceramsite and building materials. These results will provide reference for the pollutants controlling during coincineration of industrial waste and municipal solid waste process.

引用

页数：8

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