Blocking ratio enhancing agent for permeable membrane, method of blocking ratio enhancement, permeable membrane and method of water treatment

An agent for increasing the rejection with a permeable membrane which comprises an ionic macromolecule having a weight-average molecular weight of 100,000 or greater; a process for increasing the rejection with a permeable membrane which comprises treating a permeable membrane with the agent; a perm...

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Bibliographic Details
Main Author KAWAKATSU TAKAHIRO,ORITA NOBUHIRO,HAYAKAWA KUNIHIRO
Format Patent
LanguageEnglish
Published 26.09.2007
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SEPARATION
SPIRITS
TRANSPORTING
VINEGAR
WINE
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Summary:An agent for increasing the rejection with a permeable membrane which comprises an ionic macromolecule having a weight-average molecular weight of 100,000 or greater; a process for increasing the rejection with a permeable membrane which comprises treating a permeable membrane with the agent; a permeable membrane which is treated in accordance with the process; and a process for water treatment which comprises using the permeable membrane are disclosed. By using the above agent, an increased rejection of inorganic electrolytes and organic compounds soluble in water can be maintained for a long time easily and safely at the location of the use of the membrane without extreme decrease in the flux of permeation in the membrane separation using a selective permeable membrane such as a nano filtration membrane and a reverse osmosis membrane.
Bibliography:Application Number: CN200580035595