Spiral type membrane element, and spiral type membrane filtering device having the same

A spiral type membrane element in which a separation membrane, a supply side flow path material, and a permeation side flow path material in a laminated state are wound in a spiral form around a central pipe, and a permeated liquid that is filtered by said separation membrane from a raw liquid supplied via a raw liquid flow path formed by said supply side flow path material is guided to said central pipe via said permeation side flow path material, comprising:

• a power generating section that generates electric power by using said raw liquid or said permeated liquid, wherein said power generating section generates electric power by a fluid pressure of said liquid, said power generating section comprising a rotor disposed in said raw liquid flow path, wherein said rotor rotates by the fluid pressure of said liquid, wherein said power generating section generates electric power on the basis of rotation of said rotor;
• and
• an electric power outputting section that outputs, either in a wired manner or in a wireless manner, the electric power supplied from said power generating section, wherein the electric power generated by the electric power generating section is output to the outside of the membrane filtering device.