In this study the construction and implementation of the best combinations of design parameters tray aeration and microbial metabolism, which is proposed is effective when in contact with organic matter and secret beneficial substances such as vitamins, organic acids, minerals and fundamentally, antioxidants improve the organoleptic quality of the water. generally, the set of trays is used for the final treatment of potable water; in this case it is showing microbial metabolism as an alternative for the treatment of domestic sewage.