Prevention of membrane fouling

Patent Pending Even though membrane fouling is an inevitable phenomenon during membrane filtration, it can be minimised by strategies such as cleaning, appropriate membrane selection and choice of operating conditions. Membranes can be cleaned physically, biologically or chemically. Physical cleaning includes sponges, water jets or backflushing using a permeate. Biological cleaning uses biocides to remove all viable microorganisms, whereas chemical cleaning involves the use of acids and bases to remove foulants and impurities.