OPERATING AND EMISSION CHARACTERSTICS OF A NOVEL DESIGN FOUR CHAMBERS INFECTIOUS MEAT INCINSRATOR

Hamdi A. AbdelSalam

Abstract: This paper investigates the operation and emission characteristics of a novel design four chambers infectious meat incinerator. This incinerator is internally divided into primary, secondary, intermediate and heat exchanger chambers. In the primary chamber, the infectious meat is burned using 95–200 kW burner, the combustion products are then passed through the intermediate chamber, the secondary chamber, and eventually through the heat exchanger chamber. A 50 kW burner is installed in the secondary chamber to complete the combustion of CO and to destruct the dioxin. Fresh air is then introduced to the flue gases to dilute the emission concentrations and to reduce the flue gas temperature. The flue gas is finally cleaned using an activated coke filter which is installed before the incinerator stack. The incinerator has been field tested at varied charging capacities of infectious meat, varied air to fuel ratios, and different combustion chamber temperatures. The emission concentration of particulate matter (P.M.), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen oxides (NOx,), heavy metals, and dioxin have been measured at the maximum charging capacity of the incinerator. As a result of this work, it is proved that this incinerator offers an accepted and permanent solution to waste pollution problems that caused by infectious meat. The measured emissions of this incinerator highly comply with the maximum permitted emission limits of the environmental law. The heat exchanger reduced the flue gas temperature to 160°C and increased the economic viability of the incinerator; about 50% of the fuel cost has been recovered by using the hot water in the slaughterhouse.

Keywords: Incineration, Slaughterhouse incinerators, Emission control by incineration.

DOI: https://doi.org/10.15623/ijret.2013.0211050