Wastewater management is a measure of great significance for the conservation of the natural environment. Especially in mountainous regions, wastewater management is even more important, since the liquid waste of settlements are disposed, basically, in rivers and watercourses that are sensitive ecosystems.

The objective of this study is to propose solutions on wastewater management in mountainous settlements. The village of Distrato, in the Municipality of Konitsa has been used as a case study. The goal is achieved by presenting the legal framework having to do with wastewater treatment, assaying the three cleaning stages, mentioning the current international trends in wastewater management and presenting the sewage processing units, which adapt to small settlements.

The “optimum” alternative that originates from quantitative and qualitative criteria, is the Sequential Batch Reactor or compact system for which preliminary design has been  taken place.