Comparative study on formations of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and related compounds in a fluidized bed solid waste incinerator using long term used sand and fresh sand

摘要: In a fluidized bed incinerator (FBI), municipal solid waste incinerated with the help of sand which had been repeatedly used for two months (worn-out sand) yielded one-order higher concentrations polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), benzenes (PCBzs) and phenols (PCPs) in comparison that on unused (fresh) sand. As metal increased after each cycle incineration, worn-out contained one to two-order amount metals than first time. Taken together, these findings might imply accumulation is responsible increase amounts compounds.