Abstract
This paper describes work done in order to determine the emissions of highly toxic organic micropollutants from electric arc furnaces used in the production of carbon steel from scrap. The study will be allowing to derive relationships between the levels of airborne micropollutants and the operational parameters of the production process so that an abatement of pollution could be achieved. By using the European standard method CEN 1948 for dioxin like compounds sampling and measurement, it was possible to determine the characteristic fingerprint of micropollutants such as polyciclic aromatic hydrocarbons (PAHs) and polycyclic carbonyl biphenils (PCBs) emitted by this particular stationary source.
Highlights
In a previous paper[1], the author described a study on the evaluation and assessment of dioxin (PCDDs) and dibenzofurans (PCDFs) atmospheric emissions from electric arc furnace (EAF) steel making process
Apart from plastics other organic compounds that could act as PCDDs and PCDFs precursors can be found in scrap used as raw material for steel production by this process
It is well known[2] that polycyclic carbonyl biphenils (PCBs), unlike other highly toxic compounds such as PCDDs and PCDFs have been produced industrially, bearing in mind their specific physico-chemical properties that could be used in several applications
Summary
In a previous paper[1], the author described a study on the evaluation and assessment of dioxin (PCDDs) and dibenzofurans (PCDFs) atmospheric emissions from electric arc furnace (EAF) steel making process. When ferrous scrap results from the automobile industry it frequently includes plastics such as polyvinylchloride, resulting in atmospheric emissions of dioxin like compounds. Apart from plastics other organic compounds that could act as PCDDs and PCDFs precursors can be found in scrap used as raw material for steel production by this process. EMISSIONS OF POLYCICLIC AROMATIC HYDROCARBONS AND POLYCICLIC CARBONYL BIPHENILS FROM ELECTRIC ARC FURNACES EMISIONES DE HIDROCARBUROS AROMÁTICOS POLICÍCLICOS Y BIFENILOS CARBOXILADOS POLICÍCLICOS EN HORNOS ELÉCTRICOS DE ARCO reported as emitted from the steel and metallurgic industries, namely when scrap is melted again in recycling processes, such as steel making from scrap via the EAF process[3 and 4]
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