investigation on life cycle assessment of lead and zinc production

lead and zinc production is one of the main predisposing factors of excessive greenhouse gases emissions, air pollution and water consumption. in this paper, the environmental problems of lead and zinc production in calcimin plant are expressed and life cycle assessment of this plant is assessed. the data regarding the amount of induced global warming and pollution, acidification, and depletion of water resources were collected and discussed. it was concluded that depletion of water resources affected the environment and this was the main issue of the lead and zinc production of this plant. according to the results, in the global warming’s impact category, the proportion of carbon dioxide is more than that of methane. the results also showed that in the acidification’s impact category, the nitrogen oxide proportion is greater compared to that of the sulfur dioxide.