What are the methods for preserving MBR membranes?
There are mainly the following methods for preserving MBR membranes:
1. Dry storage: Unused MBR membranes should be stored in a dry state. This method is suitable for new membranes or short-term storage.
2. Wet storage: For used MBR membranes, they need to be kept moist. For long-term storage, the following steps can be followed:
Take out the membrane assembly from the pool
Rinse with clean water
Immerse and clean
Soak the membrane assembly in the sink
3. Temperature control: The storage temperature should be between 5℃ and 40℃ to avoid freezing.
4. Use maintenance fluid: MBR flat membrane elements can be preserved with a special maintenance fluid. When using maintenance fluid, the microbial growth needs to be checked once a quarter. If the maintenance fluid becomes turbid or exceeds half a year, the maintenance fluid should be replaced.
5. Environmental requirements: MBR membranes should be stored in a windproof and rainproof room to avoid direct sunlight and humid environments.
6. Prevent drying: If the MBR membrane needs to leave the pool for a short time, do not let it dry completely.
7. Regular inspection: When storing for a long time, the status of the MBR membrane should be checked regularly to ensure that it maintains good performance.
8. Prevent tipping: When storing, pay attention to prevent the membrane assembly from tipping to avoid damage.
By adopting these preservation methods, the service life of the MBR membrane can be effectively extended and its performance can be kept stable. It is very important to choose the most suitable preservation method according to the specific situation and the use status of the membrane.