Pre-ultrafiltration or pre-ozonation for EDCs removal in a combined ultrafiltration and ozonation process

摘要

BACKGROUND: Ultrafiltration (UF) coupled with ozonation (O-3) may be a promising process for removing endocrine disrupting chemicals (EDCs) from secondary effluent. One key point in employing this process is whether the UF unit should be set in front of or after the O-3 unit. So, in this paper, two systems with reversing series of UF and O-3 units were developed and operated to assess which one is better.