Control requirements and key parameter analysis of MBR membrane tank
Membrane bioreactor (MBR) membrane tank is an important component of wastewater treatment system, with complex control requirements and key parameters. The following are common control requirements and key parameter analyses in MBR membrane tanks:
1. Flux control:
Control requirements: Based on the treatment water volume and quality requirements, the flux of the membrane tank should be reasonably set to ensure stable water quality.
Key parameters: flux size, flux change rate, flux regulation method, etc.
2. Gas supply control:
Control requirements: Ensure sufficient supply of gas (such as oxygen) in the membrane tank, and maintain the normal growth and activity of microorganisms.
Key parameters: gas flow rate, gas distribution uniformity, gas supply method, etc.
3. Hybrid control:
Control requirement: Ensure that the wastewater and biological particles in the membrane tank are fully mixed to improve biodegradation efficiency.
Key parameters: mixer type, mixer position, mixing time, etc.
4. Pressure control:
Control requirements: Maintain normal operating pressure inside the membrane tank to ensure the normal operation and filtration efficiency of the membrane.
Key parameters: membrane pool pressure, pressure variation range, pressure monitoring method, etc.
5. Temperature control:
Control requirements: Control the temperature inside the membrane tank, maintain a suitable growth temperature for microorganisms, and improve degradation efficiency.
Key parameters: membrane temperature, temperature variation range, temperature monitoring points, etc.
6. pH control:
Control requirements: Monitor and adjust the pH value inside the membrane tank to maintain a suitable environment for microbial growth.
Key parameters: pH value inside the membrane tank, range of pH value changes, pH adjustment method, etc.
By reasonably controlling and monitoring the key parameters of the MBR membrane tank, the stable operation of the system and the excellent wastewater treatment effect can be ensured. Regular maintenance and upkeep of membrane tank equipment, strict adherence to relevant control requirements, are crucial for improving wastewater treatment efficiency and system performance.