Patent ID: 6565747
Filing Date: 2003-05-20
Classification: B01D,Y02A

Abstract:
A spiral wound separation membrane element comprising:a spiral wound membrane component including a water collection pipe, a separation membrane having a nonwoven fabric member and a membrane material supported on said nonwoven fabric member and wound around said water collection pipe, a raw liquid passage forming member arranged on a surface of said separation membrane for forming a raw liquid passage and a permeated liquid passage forming member arranged on another surface of said separation membrane for forming a permeated liquid passage, and having an outer peripheral surface and an end surface; an end surface holding member holding said end surface of said spiral wound membrane component; and an adhesive bonding at least two of said water collection pipe, said separation membrane, said raw liquid passage forming member, said permeated liquid passage forming member and said end surface holding member to each other; wherein all of said water collection pipe, said separation membrane, said raw liquid passage forming member, said permeated liquid passage forming member, said end surface holding member and said adhesive are made of heat-resistant alkali-resistant plastic, and wherein said end surface holding member comprises polyphenylene sulfide.