Blockage of microporous aeration tubes is a common problem. Here are some methods to solve the blockage problem:
1、 High pressure airflow flushing method
1. Equipment preparation: Use a portable air compressor to ensure that the working pressure and exhaust volume of the compressor are moderate. Generally, the working pressure is between 0.8~1MPa and the exhaust volume is around 0.08m3/min.
2. Operation steps:
Remove the flexible hose connecting the aeration tube or disc from the equipment and connect it to the outlet of the air compressor.
Start the air compressor, observe the aeration condition on the water surface, and turn off the air compressor after it returns to normal.
When flushing with high-pressure airflow, pay attention to using a throat clamp to tightly hold the plug and various connection parts of the exposure tube to prevent air leakage.
2、 Acid washing method
1. Solution preparation: Prepare a dilute hydrochloric acid solution with a concentration of 5.
2. Soaking operation:
Soak the blocked aeration tube in dilute hydrochloric acid solution for approximately 12 hours.
After soaking, remove the aeration tube and rinse it clean with clean water.
3、 Physical cleaning method
1. Drain the aeration tank: Whenever possible, drain the water from the aeration tank.
2. Brushing or high-pressure gun cleaning: Use a brush or high-pressure gun to clean the aeration tube, removing surface dirt and sediment.
3. Equipment removal and cleaning: For difficult to clean aeration tubes, they can be removed from the aeration tank and cleaned one by one.
4、 Preventive measures
1. Use air filters: Install air filters in the aeration system to reduce the entry of dust and impurities into the aeration tubes.
2. Choose plastic air pipes: For air pipes below the water surface of the aeration tank, choose plastic materials to reduce corrosion.
3. Regular maintenance: Regularly maintain the aeration system, including cleaning the aeration pipes, checking the connection parts, etc.
4. Use microporous tubes containing materials: Choose to use microporous tubes containing materials to reduce the formation and blockage of microbial membranes.
5、 Precautions
1. Operation: When cleaning and maintaining, it is necessary to follow the operating procedures to prevent accidents.
2. Environmental protection: When dealing with cleaning solutions and waste, pay attention to environmental protection and avoid polluting the environment and ecosystem.
In summary, the solutions to the blockage of microporous aeration tubes include high-pressure airflow flushing, acid washing, physical cleaning, and preventive measures. In practical operation, it is necessary to choose appropriate solutions based on specific situations and regularly maintain and upkeep the aeration system to ensure its normal operation and service life.
