Life Cycle Assessment to Municipal Wastewater Treatment Plant

摘要

This analysis is a partial study of inventory over a Wastewater Treatment Plant (WTP), and establishing the main impacts in the Life Cycle of municipal wastewater treatment systems with the application of Life Cycle Assessment (LCA) according with ISO 14040 and ISO 14044. The results showed, in the inventory assessment, an important decreasing in the Biochemical Oxygen Demand and Total suspends solids (75 and 77 percent, respectively). On the other hand, it was observed a reduction in Ecotoxicity category in the impacts assessment stage. Finally, consumption of additive and energy as well as the generation waste do not imply in a considerable increase of other impacts.