2021 年 46 巻 2 号 p. 112-115
Membrane filtration techniques for water purification have been recently applied to lower–quality raw water and larger–scale treatment plants in Japan. In response to the need for the technological capabilities corresponding to such a wide variety of the situations, Swing group provides the three types of membrane filtration systems, that is, large– and middle– scale submerged PVDF membrane, small–scale submerged PE membrane and pressurized membrane at the moment. In this article, our membrane systems and pre– and post– treatments of those are summarized, introducing the five cases of installation.