JP2012076073A5 - - Google Patents

Description

According to the present invention, the container is configured in a cylindrical shape, and the water treatment unit is configured in two stages including a primary processing unit and a secondary processing unit, and the primary processing unit has an inner periphery of the container. It is preferable that a plurality of modules are arranged along the wall surface, and the secondary processing unit is constituted by arranging the modules along or around the central axis of the container.

Claims (10)

  A water treatment apparatus comprising at least a plurality of water treatment units for treating water to be treated, wherein the water treatment unit comprises a plurality of stages, and the treated water of the preceding stage water treatment part is treated by the next stage water treatment part. A water treatment apparatus characterized in that it is connected in multiple stages so as to be treated water, and the plurality of stages of water treatment units are accommodated in a container.   The container includes an introduction pipe for introducing the water to be treated into the container, an introduction flow path for introducing the water to be treated introduced from the introduction pipe into the water treatment section at the front stage, and the water at the front stage. A post-treatment section supply flow path that folds back and introduces the treated water treated by the treatment section into the subsequent-stage water treatment section, and the treated water that has passed through the preceding-stage water treatment section is By being introduced into the next-stage water treatment section via a post-treatment section supply flow path, the flow direction of the water to be treated that passes through the previous-stage water treatment section and the water treatment section of the next stage 2. The water treatment apparatus according to claim 1, wherein a flow direction of the treated water passing therethrough is set in a reverse direction.   A discharge pipe for discharging the separated water separated from the treated water by the preceding water treatment unit from the container is disposed through the container and separated from the treated water by the subsequent water treatment unit. A subsequent separated water discharge pipe for discharging the next separated water from the container is disposed so as to penetrate the container, and the treated water that has passed through the next-stage water treatment section is discharged from the container. The water treatment apparatus according to claim 1, wherein a water discharge pipe is disposed through the container. The container is configured in a cylindrical shape, and the water treatment unit is configured in two stages including a primary processing unit and a secondary processing unit, and the primary processing unit includes a plurality of sections along an inner peripheral wall surface of the container. The water according to claim 1, 2, or 3, wherein a module is arranged, and the secondary processing unit is constituted by arranging a module along or around the central axis of the container. Processing equipment.   One module of the secondary processing unit arranged along the central axis of the container has a diameter of the module larger than that of the module of the primary processing unit arranged along the inner peripheral wall surface of the container. The water treatment apparatus according to claim 4, which is also configured to have a large diameter. The water treatment apparatus according to claim 2 , wherein the introduction flow path is provided with a dispersion member that disperses the water to be treated introduced from the introduction pipe toward a plurality of modules of the primary treatment unit.   The water treatment device according to any one of claims 1 to 6, wherein the plurality of treatment units include a nanofiltration membrane or a reverse osmosis membrane.   The water treatment apparatus according to claim 7, wherein the ratio of the membrane area of the previous stage to the next stage of each of the plurality of treatment units is 1 to 5 times.   The water treatment apparatus according to claim 7 or 8, wherein the blocking performance of the separation membrane in the plurality of treatment units is higher in the next stage than in the previous stage.   The treated water outlet flow rate with respect to the treated water inlet flow rate of each of the plurality of treatment units is 1/5 or more, and the separation water flow rate of the preceding stage treatment unit is 1 to 5 times the separated water amount of the next stage treatment unit. The water treatment device according to claim 7, 8 or 9, wherein: