Fenton/CaO调理污泥与生物质成型燃料燃烧污染物排放

针对Fenton/CaO调理后的市政污泥与稻壳混合成型燃料燃烧后烟气中SO₂和NO_x排放进行研究，分析了掺混比、温度和Fenton/CaO剂量对于SO₂和NO_x排放的影响规律.结果表明，污泥混合燃料中稻壳添加量增多，燃烧排放的SO₂和NO_x量逐渐下降，燃料硫转化率先降后升，燃料氮转化率上升；随着炉内温度的升高，污泥混合成型燃料燃烧排放的SO₂和NO_x量也将有所增加，燃料氮硫转化率也保持上升的趋势.经过Fenton/CaO调理后的混合成型燃料燃烧SO₂产生量与未经调理污泥燃烧SO₂排放量相比，低了近3.5倍，而NO_x生成量相对下降了1.3倍左右.经分析，调理污泥SS2与50%的稻壳在800℃温度下混合燃烧污染物排放性能最佳.

Study on gas pollutants emission characteristics of Fenton/CaO conditioned municipal sludge and biomass mixed fuels combustion

The SO₂ and NO_x emission characteristics during combustion of municipal sludge conditioned with Fenton/CaO and rice husk (RH) blended briquette fuels were studied. The effects of the mixing ratio, temperature and Fenton/CaO dosage on SO₂ and NO_x emission characteristics were analyzed. The results showed that with the increase of RH addition in the sludge mixed fuel, the emission of SO₂ and NO_x gradually decreased, fuel-S conversion rate first decreased and then increased, and fuel-N conversion rate increased continuously. When the temperature gradually increased, the total emissions of SO₂ and NO_x in the combustion process increased correspondingly. Compared with the SO₂ emissions from the unconditioned sludge combustion, the SO₂ generated by the Fenton/CaO conditioned mixed molding fuel combustion was nearly 3.5 times lower; while the NO_x generation was reduced by 1.3 times. The results showed that the mixed combustion of SS2 and 50% RH had the best emission performance at a combustion temperature of 800℃.