| 摘要 |
PURPOSE: To carry out the water purification of high degree by removing solid matters in raw water by means of a precision filtration film(MF film) or an ultrafiltration film(UF film) on the first stage, adding an adsorbent to treated water, adsorbing a substance of soluble properties, and then separating the adsorbent by means of an MF film or a UF film on the second stage. CONSTITUTION: Raw water stored in a raw water tank 1 is fed to a turbidity removing film (first stage film) 3 by a turbidity removing film pump 2 and separated into solid matters and treated water. The solid matters are discharged outside a system periodically by backwashing. The treated water is mixed with an adsorbent, which is injected into an adsorption material by an adsorbent storage tank 7 and an adsorbent injection pump 8, in an adsorption tank 4, and a molten component is adsorbed by the adsorption material. Then, first stage film treated water mixed with the adsorbent is separated at an adsorbent separating film 6 by an adsorbent separating film pump 5 to prepare final treated water. The removal of solid matters and a substance of soluble properties is carried out efficiently by using an MF film or a UF film, and the adsorbent is also used efficiently. |
