| abstract |
Procedure for improving the rejection rate of reverse osmosis membranes, agent for improving the rejection rate and reverse osmosis membrane # Procedure for improving the rejection rate of an RO membrane, which also improves stability of elimination performance (rejection rate) and flow stability (sustainability of pollution resistance). In a process for improving the rejection rate of an RO membrane, including a step to allow an aqueous solution containing a polyphenol to pass through an RO membrane, the process further comprises a step to allow an aqueous solution containing, such as minimum, a type selected from the group consisting of a modified polyvinyl alcohol, a high molecular weight polysaccharide, and a poly (amino acid) that passes through the RO membrane. |