Emission of Dioxins from Industrial Thermal and Metallurgical Processes and Its Impact: An Overview

Posted on 08 February 2013
 

Emission of Dioxins from Industrial Thermal and Metallurgical Processes and Its Impact: An Overview
Emission of Dioxins from Industrial Thermal and Metallurgical Processes and Its Impact: An Overview BY PROJJAL BASU1,*, WONG POH WEI2, AZMAR BIN AHMAD1 SYNOPSIS Dioxin is a group of chlorinated compounds consisting over 400 types of compositions. Out of which, polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) are extremely toxic, in particular. They affect the living organisms including human being. As the compounds possess different toxicity levels, an equivalent toxicity is usually calculated for the entire gas mixture and even a very low dosage can be fatal. Organic materials, with chlorine present in them, release these compounds during heating. Municipal incinerators, cement kilns, metallurgical plants, etc, employing different industrial heating processes, are often held responsible as the major contributors for this. Even though dioxin emission standards have been set for a few industries in select countries, the same for metallurgical industries is yet to be formulated. However, considering its impact even in minute quantities, this imminent and deadly evil must be managed and controlled before it takes its toll. This paper presents an overview of the characteristics, generation, impact on environment and health, abatement, and legislation regarding dioxins emanating from industries dealing with high temperatures. 2011 ESCO Seminar

 

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