Investigating the environmental status of air pollution in Iran's ferroalloy industries (IFI)

Ferrosilicon was used as a modifier in steel and cast-iron production. The most critical pollutants in the ferrosilicon industry are particulate matter (PM۲.۵ and PM۱۰) and dust, CO, CO۲, NOx, and Sox. This study aimed to investigate the environmental status of air pollution in Iran's ferroalloy industry by examining air pollutant control equipment. Iran’s ferroalloys industries (IFI), with a production capacity of ۶۰ thousand tons of ferrosilicon, is located in Lorestan province. Air pollutants were measured in the years ۲۰۲۰ and ۲۰۲۱. The exhaust gases and dust were measured by the XL۳۵۰ and Westech portable particulate detectors, and ambient particulate matter was measured by the Dust Trak ۸۵۲۰. The data analysis was done using SPSS and Excel software. So that the normality of the data was reviewed using the Kolmogorov-Smirnov test and the average of the data was compared with the pollution standards using the one-sample t-test. The results showed that all measured parameters of gases, dust, and ambient particulate matter (PM۲.۵ and PM۱۰) during the studied years of ۲۰۲۰ and ۲۰۲۱ were in accordance with the pollution standard. Having suitable environmental equipment including U-shaped pipes to cool the flue gases from the furnace area to the bag house, a cyclone separator for dust removal, the collection of particulate matter (PM), and bag filters in the baghouse have been used for collecting particulate matter (PM) and filtering dust. Also, green space, with more than ۶۰% of the industry space, has played a very effective role in reducing industrial air pollution

کلیدواژه ها:

Air pollutants ، Baghouse ، Ferrosilicon ، filter ، Green space