Pre-Startup Checklist for MBR Membrane Modules: What to Inspect Before Running Your System


Pre-Startup Checklist for MBR Membrane Modules

MBR membrane modules play a critical role in modern wastewater treatment systems, especially where space is limited and water quality requirements are strict. But before starting up your MBR system, a proper pre-operation inspection is crucial to ensure long-term reliability and performance.

✅ 1. Check All Pipe Connections

Ensure that the wastewater inlet/outlet pipes and air scouring lines are connected correctly. Misconnections may lead to insufficient aeration or even membrane damage.

✅ 2. Secure the Membrane Modules

Confirm that the MBR cassette is firmly installed in the aeration tank. A stable setup prevents vibration and physical damage during operation.

✅ 3. Clean the Bioreactor Tank

Before installing the membranes, the tank should be cleaned thoroughly to remove any dust, debris, or sludge. Particles can clog the membranes and reduce performance.

✅ 4. Release Trapped Air

Before adding water, open the air release valve to ensure that no air remains inside the membrane modules. Trapped air can disrupt the suction and reduce filtration efficiency.

✅ 5. Fill the Reactor with Clean Water

Fill the tank with tap water or treated water up to the normal operating level. This step helps protect the membrane and allows the biological process to stabilize before wastewater is introduced.

✅ 6. Close the Air Release Valve

After the water reaches the required level and all air is removed, close the valve to seal the system. This maintains pressure and ensures stable operation.

Pro Tip:

It’s recommended to keep a startup log for your MBR system, including air pressure, water levels, TMP, and visual inspections. This helps identify any future operational issues early on.

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