PURPOSE: To prevent the proliferation of microorganisms captured on the surface of a filtration membrane by forming a thin membrane of silver on the surface of a filtration membrane on the side of a raw liquid by a physical or chemical vapor deposition process when the sterilization by filtration is performed.
CONSTITUTION: When a fluid containing microorganisms is passed through a filtration membrane 4 to remove said microorganisms, silver, known to have antibiotic action, is applied to the surface of the membrane 4 on the side of a raw liquid 3 by a physical or chemical vapor deposition process to impart antibiotic action to the membrane 4 itself. By using said membrane 4 having antibiotic action, the proliferation of microorganisms which has been a problem caused by the prior art can be avoided or restrained, whereby a leak of microorganisms into filtrated fluids can be prevented.
FUJITA NORIHIKO
GOTO ICHIRO
NISHIYAMA KK
| JPS6316018A | 1988-01-23 | |||
| JPS60261502A | 1985-12-24 |