PURIFICATION DEVICE FOR CIRCULATED WATER USE SYSTEM

摘要

The purpose of the present invention is, in a novel circulated water use system that is being studied, to provide a purification device that is suitable for the system. A purification device (8) for a circulated water use system that is built for a specific region separate from the public water supply network comprises: a first processing tank group (41G) that includes a plurality of first processing tanks (41) for housing, in a container, a processing device that performs one step from the three or more processing steps into which a series of purification steps, by which effluent is purified, are divided; a second processing tank group (42G) that includes a plurality of second processing tanks (42) for housing, in a container, a processing device that performs the next processing step; a third processing tank group (43G) that includes a plurality of third processing tanks (43) for housing, in a container, a processing device that performs the successive processing step; and a container housing (50) for housing each processing tank so that each can be removed. One of the pipe diameter, joint structure, and pipe color of a first-to-second connecting pipe (44) that connects the first processing tank to the second processing tank differs from the same of a second-to-third connecting pipe (45) that connects the second processing tank to the third processing tank.