Key points for daily maintenance of MBR membrane modules
In order to ensure the stable operation and extend the service life of MBR membrane modules, routine maintenance is essential. The following are several key points for daily maintenance of MBR membrane modules:
1. Regular backwashing
Depending on the degree of membrane fouling, backwash the membrane module 1-2 times a day
Backwashing can remove reversible pollutants on the membrane surface and restore flux
Backwash frequency and time need to be adjusted according to actual conditions
2. Chemical cleaning
Perform chemical cleaning every 2-4 weeks to remove difficult-to-remove contaminants
Use oxidant (hypochlorite) to clean organic pollutants
Use acid or alkali to clean inorganic contaminants (metal oxides, etc.)
3. Aeration system maintenance
Regularly check the aeration pipeline to remove blockages, water and mud accumulation
Check the operating status of the blower to ensure sufficient aeration
Proper aeration can help slow down membrane fouling
4. Check membrane integrity
Regularly check the connection and sealing condition of membrane modules
If damage is found, replace the damaged membrane element promptly.
Prevent secondary pollution caused by sewage leakage
5. Monitor key parameters
Monitor changes in operating parameters such as membrane flux and transmembrane pressure
Analyze parameter changes and adjust operating strategies
Detect abnormalities promptly and take countermeasures