Choice of Dust Collectors Based on Energy and Environmental Degradation in Steel Industries

Abstract

Environmental degradation and Economic growth are two important proofs in sustainable development which are followed by steel industry. In this case, energy and environmental damages as sustainability patterns of environment have been investigated in three different dust collectors to select the most environmentally suitable dust collector for electric furnace. In this article, the consumption amount of energy and costs and environmental damages due to the Energy Consumption are determined in Venturi Scrubber (V.S), Bag Filter (B.F) and Electrostatic Precipitator (E.S.P) connected to 1 of steel in ton electrical furnaces industry by using computational methods In this way total costs in 3 mentioned dust collectors were calculated in furnace with capability of one tonnage. The results showed that the total costs of dust collectors due to energy and environmental damages in one ton furnace during one year are 152 dollars in Electrostatic Precipitator, 566 dollars in Bag Filter, and 724 dollars in Venturi Scrubber, respectively. For example in Mobarakeh iron & steel plant, EAF with 200 tonnages these numbers are 30000 - 140000 US $ per year. It can be concluded that if the steel industry is located near the rural and urban areas, the best dust collector will be Bag Filter, if the steel industry is located far from urban and rural areas, the best dust collector is Electrostatic Precipitator.