Today, the production of solid wastage and emerge of various types of social incompatibility, economic and environmental problems associated with them, cawe many serious problem to management of services and urban wastes in collecting, transportin, and disposing of waste materials. The purpose of do this study is to assess the life cycle of the current management systems in najaf abad city, from the point of on environmental view, and determine to prority decisions in order to improve waste management. there are many tools, to evaluate of environmental effects n different waste management. but the most usual method is assessing of the life cycle assessment (LCA) in this research In this research four scenarios were defined and its data entered in the IWM-1 software.
In general, life cycle assessment Najaf Abad municipal waste to achieve a scenario that was lower environmental load. the fourth scenario was selected as the best environmental option Because less environmental load than other scenarios.