污泥干化焚烧尾气处理工艺选择

Technologies for Treating Flue Gas From Sewage Sludge Drying

通过对城市污水处理厂污泥干化焚烧后的尾气成分特性的分析，并与几种常用尾气处理工艺进行比较，结合国内外的相关经验，论证了适宜污泥干化焚烧后尾气的处理路线为：活性炭吸附＋布袋除尘器＋碱法湿法脱酸，NOx可不进行处理，并就其使用提出了建议和意见。

Based on analyzing the characteristic of flue gas from sewage sludge incineration and comparing several prevailing gas treatment technologies, the paper identifies ＂active carbon injected＋ bagfilter＋ wet FGD （alkali lye used）＂ asthe most appropriate one. As NOx emission concentration in this process would be already lower than what is required by the standards, it does not require any further treatment.