Nvestigation of the environmental impacts of a fiber dyeing mill with life cycle assessment

With the increase in the world population, both production and consumption increase. The textile sector is one of the most important sectors in the world, considering both the use of manpower and the potential for raw material consumption. This increasing consumption potential has brought environmental problems. The biggest environmental problem the world faces is global warming. Global warming is the increase in temperature created by greenhouse gases (nitrous oxide, methane, sulfur hexafluoride, hydrofluoracarbons, perfluoracorbans, carbon dioxide) released into the atmosphere as a result of human activities. Global warming is the most important environmental problem since it concerns all countries globally, including decrease in biodiversity, water stress problems, increase in infectious diseases, fires in winter, stronger cyclones, severe storms, drought and seasonal floods. They introduced the concept of life cycle analysis to determine the effects on the environment. Life cycle analysis is a method of evaluating the effects of a product on the environment in the steps from its production to disposal. While a product is produced, raw materials, chemicals, energy, water, resource use and manpower are specified as inputs and occur at every stage. In this study, the IMPACT 2002+ method in the Ecoinvent 3 library of the SimaPro 8.2.3.0 package program was used to calculate the effects of a fiber dyeing plant on the environment. Cotton weaving, dyeing, electricity and water consumption in 18 impact categories Values were calculated and interpreted separately. The environmental impact of 1 kg of cotton weaving is the highest, with 11.3 kg of CO2 equivalent, followed by 1 kg of solvent-free dyeing with 6.5 kg of CO2 equivalent, electricity consumption is 0.632 kg CO2 equivalent, and the lowest effect is water consumption with 0.000321 kg CO2 equivalent. These findings provide suggestions to determine the environmental impacts of the cotton weaving stages and to make improvements in which stages in order to reduce emissions and use resources efficiently.