Water reclamation system that comprises a primary module (1) with separation means (291) and a dirty water tank (19), a secondary module (2) with a treatment tank (29), ozone generating means (293), a recirculation circuit (34, 36) and a catalyst filter (37), a tertiary module (3) with filtration means (292), and a treated water tank (62). The system may also comprise a desalination module (4), a turbulence promoter (122) inside the treatment tank (29) and/or water electrical conductivity measuring means for water electrical conductivity control in the treated water tank (62). The water reclamation system has overall measures smaller than 15 meters of length, 4 meters of width or 3 meters of height and the nominal design flow of water to be treated is between 0.5 and 25 m3/h. A corresponding water treatment method is also provided.
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