Pipe fouling in fiber ball filter media occurs when the metal pipes are corroded and rusted on the inner walls, leading to a reduction in water flow capacity. This issue can significantly affect the performance of the filtration system.
What is scaling in a fiber ball filter?
Pipe fouling in fiber ball filters refers to the buildup of rust and corrosion on the internal surfaces of metal pipes. This problem arises due to complex interactions between the water and the metal components within the filter media. When the water has high moisture content, low pH levels, or is highly corrosive, it accelerates the corrosion process. The presence of iron particles, sulfate-reducing bacteria, and other contaminants can further promote rust formation.
The resulting rust often appears as irregular, tumor-like deposits. The outer layer is typically a hard, yellow iron oxide, while the inner part consists of black ferrous oxide and iron sulfide. This material tends to be soft and mushy, and can be easily scraped off with a knife. It also emits a distinct metallic odor.
Precautions for the construction and maintenance of fiber ball filters:
(1) Ensure that the water pipes of the fiber ball filter are not connected to sewer channels or inspection wells. Avoid installing rainwater drains or cable wells near these systems.
(2) In cold regions, inspect the exposed pipelines of the fiber ball filter before the end of September each year. Check the condition of the external insulation layers to prevent freezing damage.
(3) Regularly check the foundation piles, brick piers, and concrete supports for overhead water pipes. Look for signs of decay, sinking, or cracks that could compromise structural integrity.
(4) For water pipes installed over bridges, inspect the lifting components for looseness or rust. Ensure all connections remain secure and functional.
(5) After heavy rainfall, conduct inspections of the fiber ball filter and foam filter to check for vegetation growth, blockages, or pipeline damage caused by flooding.
(6) If pipe trenches are shared with other structures and include inspection wells, open them periodically or conduct manual inspections to ensure proper functionality.
(7) All areas around the pipeline that are under construction should be considered high-priority inspection zones.
(8) Ensure there are no unauthorized private water connections, which can lead to contamination or system failure.
By following these precautions, you can maintain the efficiency and longevity of your fiber ball filter system.
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