Wastewater recycling method and wastewater recycling unit

摘要

PROBLEM TO BE SOLVED: To provide a wastewater recycling process that can save water at high level, and to provide a wastewater recycling unit.SOLUTION: Provided is a wastewater recycling process including: a step (1)S1 of removing solid content from wastewater and obtain a treated water (A); a step (2)S2 of obtaining a treated water (B) by removing ions from a part of the treated water (A); a step (3)S3 of utilizing the remainder of the treated water (A) as a use (A) and recovering wastewater (A); a step (4) of utilizing the treated water (B) as a use (B) and recovering wastewater (B); and a step (5) of mixing the wastewater (A) and the wastewater (B) to make the wastewater.SELECTED DRAWING: Figure 1