“…The highest removal efficiency reported for TC, FC, intestinal nematode parasites eggs, and protozoan cysts was 99.999% (5 logs), 99.99% (4 logs), 99%, and 99%, respectively (Darvishmotevallia, Moradniab, Asgaric, Noorisepehrd, & Mohammadif, 2019). Similarly, another hybrid CW system (CWs in series with anaerobic digester) reported the bacterial removal efficiency of more than 98% (Khouja, M’Hiri, Ouzari, & Saidi, 2019). Combined overflow sewer was treated in CWs for 7–10 years and reported that the indicator microorganisms E. coli (1.1/0.8 log10), intestinal enterococci (1.3/0.8 log10), and somatic coliphages (0.6/1.0 log10) showed comparably low process variations (Tondera, Ruppelt, Pinnekamp, Kistemann, & Schreiber, 2019).…”