TY - JOUR
T1 - Solid waste mixtures combustion in a circulating fluidized bed
T2 - emission properties of NOx, dioxin, and heavy metals
AU - Zhang, Hanfei
AU - Lv, Caixia
AU - Li, Jun
AU - Qin, Wu
AU - Hu, Yukun
AU - Dong, Changqing
PY - 2015/8/31
Y1 - 2015/8/31
N2 - Abstract To efficiently and environment friendly combust the domestic garbage, sludge, and swill waste fuels, five different fuels are prepared by mixing the waste fuels together with coal, and grass biomass at different mixing ratios, and finally those fuels were combusted in a circulating fluidized bed (CFB) reactor. The emission performances of NOx, dioxin, and heavy metal during the combustion tests are studied. The results showed that a stable furnace temperature can be reached at approximately 850 °C when combusting all studied mixed fuels, benefiting the thermal processes of sludge and domestic garbage and thus realizing the purpose of waste-to-fuel. In addition, the dioxin emissions are much lower than the emission standards, and NOx emissions could be reduced significantly by adjusting the ratio of waste fuels. However, the emissions of mercury, lead, and the combinations of chromium, tin, antimony, cupper and manganese components all exceeded the pollution control standard for hazardous wastes incineration, a further technology is required for heavy metal reductions to achieve the emission standards.
AB - Abstract To efficiently and environment friendly combust the domestic garbage, sludge, and swill waste fuels, five different fuels are prepared by mixing the waste fuels together with coal, and grass biomass at different mixing ratios, and finally those fuels were combusted in a circulating fluidized bed (CFB) reactor. The emission performances of NOx, dioxin, and heavy metal during the combustion tests are studied. The results showed that a stable furnace temperature can be reached at approximately 850 °C when combusting all studied mixed fuels, benefiting the thermal processes of sludge and domestic garbage and thus realizing the purpose of waste-to-fuel. In addition, the dioxin emissions are much lower than the emission standards, and NOx emissions could be reduced significantly by adjusting the ratio of waste fuels. However, the emissions of mercury, lead, and the combinations of chromium, tin, antimony, cupper and manganese components all exceeded the pollution control standard for hazardous wastes incineration, a further technology is required for heavy metal reductions to achieve the emission standards.
KW - solid wastes
KW - CFB
KW - NOx
KW - heavy metal
KW - Dioxin
UR - http://www.sciencedirect.com/science/article/pii/S1876610215010905
U2 - 10.1016/j.egypro.2015.07.322
DO - 10.1016/j.egypro.2015.07.322
M3 - Article
VL - 75
SP - 987
EP - 992
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
ER -
