In the context of water scarcity that affects several regions of Brazil, associated with water quality problems, the reuse of water for various uses emerges, as a potential alternative for rationalization.

Reuse system is installed after ETE (Sewage Sewage Treatment Plant), and depending on the intrinsic characteristics of the effluent and the quality required for reuse, the treatment may add to the preliminary, primary and secondary stages, when a final polishing is required for removal of solubles, tertiary treatment.

Reuse water is ideal for non-noble purposes, such as: washing cars, parts, engines, floors, gardening, flushing toilets, cooling towers and others that are not for human and animal consumption (ie, intended for ingestion , food preparation and production and personal hygiene).

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