| 摘要 |
PROBLEM TO BE SOLVED: To attain functions comparable to a five-way valve with a two-way valve and a valve (three-way valve) that connects two pipes out of three pipes.SOLUTION: A waste water treating system includes a raw water tank, an adsorption tower, a treating tank, and pipe part, wherein the pipe part includes: a first pipe extending to the raw water tank side in one way and branched in the other way, one branch destination is connected to a three-way valve, and the other branch destination is connected to a first two-way valve; a second pipe connected to the first pipe through the three-way valve and feeding the raw water introduced from the first pipe to the adsorption tower; a third pipe extending to the absorption tower side in one way and branched in the other way at two sections, wherein a first branch destination is connected to the first two-way valve and the second branch destination is connected to the second two-way valve and the third branch destination is connected to the third two-way valve; a fourth pipe connected to the third pipe through the second two-way valve and feeding the treating water to the treating tank; and a fifth pipe extending to the raw water tank in one way and branched in the other way, wherein one branch destination is connected to the three-way valve and the other branch destination is connected to the third two-way valve. |
