Wastewater Treatment
Failures, possible causes and solutions of reinforced polyvinylidene fluoride hollow fiber curtain membrane cassettes with inner lining (MBR cassettes ) - Failure Analysis of Lined Reinforced Polyvinylidene Fluoride Hollow Fiber Curtain Membrane Casing (MBR Casing)
Failures, possible causes and solutions of reinforced polyvinylidene fluoride hollow fiber curtain membrane cassettes with inner lining (MBR cassettes )
Failure Analysis of Lined Reinforced Polyvinylidene Fluoride Hollow Fiber Curtain Membrane Casing (MBR Casing)
MBR System Fault Diagnosis and Troubleshooting Table
| Fault | Possible Causes | Workaround |
|---|---|---|
| The suction pump cannot pump out water | Suction pump reverse | Adjust the wiring of the suction pump to make it rotate forward |
| There is no water in the suction pump cavity | Fill the suction pump cavity with water before starting | |
| The suction pump inlet pipeline is seriously leaking | Find and repair leaks | |
| The water contains a lot of bubbles | The suction pump inlet pipe is leaking | Find and repair leaks |
| Insufficient or uneven aeration | Blower failure | Find and correct the cause of the fault, repair or replace the blower |
| Internal and external aeration pipes are blocked | Find and correct the cause of blockage, clean or replace the internal and external aeration pipes | |
| The water flow rate decreases or the transmembrane pressure difference rises too quickly | Grease and mineral oil, etc. MBR membrane blocked by dirt | Find and correct the cause of fouling and blockage, clean or replace the MBR membrane |
| Defoaming agents, coagulants and flocculants, etc. MBR membrane blocked by dirt | Find and correct the cause of fouling and blockage, clean or replace the MBR membrane | |
| MBR pool water temperature is low | Increase water temperature according to design requirements | |
| Sludge concentration is too low | Increase sludge concentration according to design requirements | |
| Sludge concentration is too high | Reduce sludge concentration according to design requirements | |
| Poor sludge settling performance | Improve sludge settling performance according to design requirements | |
| High sludge viscosity | Reduce sludge viscosity according to design requirements | |
| The water is turbid or the water quality is poor | Pretreatment failed | Ensure pretreatment is qualified according to design requirements |
| Bacteria growing inside the MBR membrane | Sterilization of MBR membranes | |
| Bacteria growing inside the outlet pipe | Sterilize the water outlet pipe | |
| Damaged water collection pipe | Find and correct the cause of damage, repair or replace the water collection pipe | |
| Quick-release connector damaged | Find and correct the cause of damage, repair or replace the quick connector | |
| Transparent hose is damaged | Find and correct the cause of damage, repair or replace the transparent hose | |
| MBR membrane damage | Find and correct the cause of damage, repair or replace the MBR membrane |
Notice! If you have any other problems, please consult our company's relevant technical personnel.