污泥电厂掺烧烟气二次污染物来源及控制标准分析

顾敏燕，段妮娜，朱俊

摘要:

针对污泥电厂掺烧二次污染物,本文总结了污泥电厂掺烧系统中特征污染物的种类和来源,重点阐述了二噁英和重金属的形成过程与机理。通过总结国内外焚烧相关的烟气排放标准,对比分析了国内外污染物控制种类和限值差异。梳理现有燃煤电厂烟气处理系统及功能,重点阐述了二噁英和重金属的控制方法与机理。

关键词:污泥;电厂掺烧;焚烧;烟气;二次污染物

Abstract:

Aiming at the secondary pollutants in the mixed combustion system of coal sludge mixed incineration, this paper summarizes the types and sources of secondary pollutants in the coal sludge mixed incineration plant, and focuses on the formation process and mechanism of dioxins and heavy metals. By summarizing the emission standards of flue gas related to incineration at home and abroad, the differences of pollutant control types and limits at home and abroad are compared and analyzed. The existing flue gas treatment systems and functions of coal-fired power plants are sorted out, and the control methods and mechanisms of dioxins and heavy metals are emphatically described.

Key words:污泥;电厂掺烧;焚烧;烟气;二次污染物