Environmental Impacts of Formalin and Hexamine Production Units Using Life Cycle Assessment: A Case Study in the Gameron Petro Industry Complex, Iran

Background: Formalin and hexamine as important chemicals are widely used in industry that their pollution effect is often taken into account. The aim of this study was to investigate environmental effects of formalin and hexamine production process in Gameron Petro Industry Complex using the life cycle assessment method.Methods: This study was conducted according to ISO ۱۴۰۴۰, using the life cycle assessment (LCA) method and SimaPro software ۹, as well as Eco-indicator۹۹, IMPACT۲۰۰۲+ and EDIP۲۰۰۳. The functional unit studied was ۱ ton of product (۸۰۰ kg hexamine plus ۲۰۰kg formalin) in this complex.Results: It was found that ammonia was the most influential input material in creating the consequences of climate change, radiation and toxicity. In respiratory inorganics, the contribution of ammonia and methanol was the same. Methanol was the dominant input of other outcome. It was determined that the effect of methanol and ammonia on human health was approximately equal. Ammonia and methanol had effect on ecosystem toxicity and creating the category of resource consumption, respectively. The total values of the effect classes were ۰.۰۰۱۶۳۶ DALY, ۲۰۳۸.۳۰۵ PDF.m² yr, ۲۰۹۱.۵۳۶ kg CO۲ equivalents and ۶۱.۸۷۱۳۹MJ surplus.Conclusion: The results showed that in the life cycle of formalin production, and hexamine, methanol is the dominant input in creating environmental impacts. After that, ammonia, diesel and electricity were the effective inputs in the production life cycle of these products.