“…This includes biological aerobic (e.g., activated sludge, SBR, biofilter) [8][9][10] or anaerobic (e.g., UASB) [1,11] treatments, enzymatic biodegradation (actinomycetes, fungi) [12], chemical oxidation (H 2 O 2 /Fe 2? (Fenton), e.g., hypochlorite), [13,14] or reduction (e.g., Fe 0 ) [15], electrochemical oxidation (e.g., O 3 /UV, O 3 /H 2 O 2 , O 3 /UV/H 2 O 2 , H 2 O 2 /UV) [16,17], photodegradation (e.g., TiO 2 /UV, photo-Fenton) [18,19], adsorption (e.g., activated carbons, silica, biosorbents) [20,21], membrane separation (e.g., microfiltration, ultrafiltration, nanofiltration) [22], chemical coagulation/flocculation (e.g., aluminum, iron, or calcium salts) [23], and electrolytic treatments, which include electroflocculation [24], and/or electrocoagulation [25][26][27][28], and electro-oxidation [29][30][31].…”