Transfer characteristics of heavy metals under biomass waste and plastics waste co-firing conditions

XIE Mingchao; MA Xiaoqian; ZENG Guangbo

English

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Transfer characteristics of heavy metals under biomass waste and plastics waste co-firing conditions

Thermal Power Generation Vol. 44, Issue 3, Pages: 8-14(2015)

更新时间：2025-09-28

- Transfer characteristics of heavy metals under biomass waste and plastics waste co-firing conditions
- 作者机构：
  
  华南理工大学电力学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： X705
- Published：2015
- 稿件说明：
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XIE Mingchao, MA Xiaoqian, ZENG Guangbo. Transfer characteristics of heavy metals under biomass waste and plastics waste co-firing conditions[J]. Thermal Power Generation, 2015, 44(3): 8-14.
DOI：

XIE Mingchao, MA Xiaoqian, ZENG Guangbo. Transfer characteristics of heavy metals under biomass waste and plastics waste co-firing conditions[J]. Thermal Power Generation, 2015, 44(3): 8-14. DOI：

摘要

为了研究生物质与塑料类垃圾混烧对失重率和重金属Pb

Zn迁移特性的影响

利用管式炉和原子吸收分光光度计对木、纸、橡胶、再生PE、再生PP、再生PS和再生PVC 7种组分进行燃烧试验。结果表明:1)生物质与塑料类垃圾混烧会不同程度地降低样品失重率

纸比木降幅更明显;2)单样燃烧时

900℃下Pb的挥发率可达85%以上

1 000℃下4种塑料中Cu的挥发率可达85%以上

高温阶段Zn的挥发率明显上升;3)纸与除PVC外的塑料混烧可以使Pb固定在底灰中;4)木、纸分别与PVC和橡胶混烧

可以使Cu固定在底灰中;5)木与除橡胶外的塑料混烧、纸与PS混烧

均可使Zn固定在底灰中。

Abstract

To study the weight loss rate and transfer behavior of heavy metals( Pb

Zn) under biomass wastes and plastic wastes co-firing conditions

experiments about seven components( wood

paper

rubber

recycled PE

recycled PP

recycled PS and recycled PVC) were conducted on a tube furnace and a atomic absorption spectrophotometer. The results show that

co-combustion of biomass and plastic wastes causes a decrease in weight loss rate of the samples

especially the paper. When the sample is burned alone

the volatilization rate of Pb can reach over 85%at 900 ℃

that of Cu in four plastic wastes can reach over 85% at 1 000 ℃

and that of Zn rises significantly at high temperatures. Pb can be captured in bottom ash when the paper is co-fired with the plastics except the PVC. Cu can be captured in bottom ash when the wood and paper are co-fired with the PVC and the rubber. Zn can be captured in bottom ash when the wood is co-fired with the plastics except the rubber or the paper with the PS.

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