Does co-processing of waste material generate dioxins and furans?
Independent of the use of alternative fuels any chlorine introduced to the kiln system in the presence of organic material may cause the formation of small quantities of dioxins and furans in combustion processes. Due to the long residence time, the high temperatures in the kiln and the rapid cooling of the exhaust gas dioxins and furans emissions are generally very low during steady kiln conditions. In Europe, cement production is not a significant source of dioxins and furans emissions. Cement kilns typically can easily comply with an emission limit of 0.1 ng TEQ/Nm3.
