Throughout the conservation group letter, there are references to other treatment and technology alternatives, that are more “robust”, “innovative”, “proven”, but somehow also “cutting edge”
The source of the technical review accompanying the conservation group letter does not appear to have any experience with wastewater treatment process design (although none is claimed, only expertise). No treatment or technology alternatives are named, there are only nebulous references to their existence. The world of municipal wastewater treatment is not one to try to be too innovative or cutting edge, due to the challenging environments, harsh conditions and critical, 24/7/365 performance requirements. MBR is as robust and proven of a treatment technology as the field of wastewater treatment has ever seen.