Biological treatment of water by activated sludge and within it, the extended aeration also called total oxidation, is the procedure usually used when it is necessary to obtain high performance in reducing BOD5. Extended aeration line is characterized by its high performance of purification obtaining mineralized sludge, low installation cost and easy maintenance in a small area of occupation with unpleasant odors.

The PM Line consists of precast concrete elements guaranteeing constructions with long durability. On the other hand, it can reach depths of 4m in aeration and decanting, improving substantially plant performances.

The modularity of the plant allows easy expansions and process improvements such as tertiary treatments and nutrient reductions. The PM Line treatment plant can be easily integrated into the landscape, minimizing the environmental and visual impact.