choice of dust collectors based on energy and environmental degradation in steel industries

environmental degradation and economic growth are two important proofs in sustainable developmentwhich are followed by steel industry. in this case, energy and environmental damages as sustainabilitypatterns of environment have been investigated in three different dust collectors to select the mostenvironmentally suitable dust collector for electric furnace. in this article, the consumption amount ofenergy and costs and environmental damages due to the energy consumption are determined in venturiscrubber (v.s), bag filter (b.f) and electrostatic precipitator (e.s.p) connected to 1 of steel in tonelectrical furnaces industry by using computational methods in this way total costs in 3 mentioned dustcollectors were calculated in furnace with capability of one tonnage. the results showed that the totalcosts of dust collectors due to energy and environmental damages in one ton furnace during one year are152 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 are30000 - 140000 us $ per year. it can be concluded that if the steel industry is located near the rural andurban areas, the best dust collector will be bag filter, if the steel industry is located far from urban andrural areas, the best dust collector is electrostatic precipitator.