Based on total annual costs a GSBR (Granular sludge sequencing batch reactors) with pre-treatment and a GSBR with post-treatment proves to be more attractive than the reference activated sludge alternatives (6–16%).
Baseándose no custo anual dun reactor granular (GSBR) con pretratamento e un GSBR con postratamento, estes sistemas son máis viables nun 6-16%.