期刊
MEMBRANES
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/membranes11020131
关键词
ceramic membranes; organic fouling; cleaning
类别
资金
- ERDF Project Zero-to-low-waste technology for simultaneous production of liquid biofuel and biogas from biomass [1.1.1.1/18/A075]
The use of ceramic membranes in industrial applications has significantly increased, emphasizing the importance of proper cleaning methods to reduce fouling and extend membrane lifespan. Physical methods such as backflushing, backwashing, and ultrasound are often used for reversible fouling, while alkaline substances, acids, or oxidants are recommended for irreversible fouling treatment.
The use of ceramic membranes in the treatment and processing of various liquids, including those of organic origin, has increased tremendously at the industrial level. Apart from the selection of the most appropriate membrane materials and operational conditions, suitable membrane cleaning procedures are a must to minimize fouling and increase membrane lifespan. The review summarizes currently available and practiced non-reagent and cleaning-in-place methods for ceramic membranes that are used in the treatment of organic liquids, thus causing organic fouling. Backflushing, backwashing, and ultrasound represent the most often used physical methods for reversible fouling treatment. At the same time, the use of alkalis, e.g, sodium hydroxide, acids, or strong oxidants are recommended for cleaning of irreversible fouling treatment.
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