Avaliação de gases poluentes oriundos da queima de argila com adição de escória de aciaria

Souza, Vanessa Pereira de; Toledo, R.; Vieira, Carlos Maurício Fontes; Intorne, S. C.; Vargas, H.; Faria, Rivaldo Mauro de

doi:10.1590/s0366-69132008000400014

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(1 citation statement)

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“…Therefore, for using the BFS waste outside the steel plant is necessary to characterize its effects in terms of both, energetic contribution and liberation of gases during the ceramic firing. In particular the CO 2 emission, as greenhouse gas responsible to the global warning, is important to be evaluated [4,5]. By bits amount of carbon, the BFS can be considered a fuel containing waste and would favorably contribute to the ceramic firing process.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Blast Furnace Sludge for Clayey Ceramic Fabrication

Dias

Monteiro

Faria

et al. 2012

MSF

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Operation in an integrated steel making plant, such as the processing of iron ore by blast furnace result in several wastes that need to be conveniently disposed to avoid environmental pollution. In the case of sludge wastes, a feasible solution is their addition to clayey ceramics. The objective of this work was then to characterize a steel making plant waste was subjected to mineralogical, chemical and physical tests. The combustion gases: CO, CO2, NO and SO2from thermal emission were analyzed. It was found that the blast furnace sludge has a high content of both iron and carbon. Its combustion generates enough heat to sensibly contribute to the firing of the ceramic, which is an energetical advantage associated with the sludge waste addition. The gas emission was monitored and, for relatively small addition of waste, no harm is apparently caused to the environment.

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Section: Introductionmentioning

confidence: 99%