“…These treatments must fulfi ll the discharge requirements with low investment and operating costs at the same time. Among analyzed solutions, such physicochemical and chemical methods were used: coagulation coupled with sedimentation (Aloui et al 2009, El-Gohary et al 2010, Perdigon-Melon et al 2010, Naumczyk et al 2013, Carpinteyro-Urban et al 2012, coagulation coupled with dissolved air fl otation (DAF) (El-Gohary et al 2010), electrocoagulation (Aloui et al 2009, (Boroski et al 2009), advanced oxidation processes (AOPs) (Wang et al 2008, Aloui et al 2009, Perdigon-Melon et al 2010, Boroski et al 2009, Bautista et al 2007, Bautista et al 2010a, Bautista et al 2010b, Carballa et al 2007, Marcinowski et al 2014, Ebraheim et al 2013). Advanced biological methods were also proposed: membrane reactors (Friha et al 2012, Friha et al 2104, Monsalvo et al 2014), mixed anaerobic-aerobic processes (Zhang et al 2013) or anaerobic reactors (Puyol et al 2011).…”