5 Questions
What is the function of the Schmutzdecke layer in a slow sand filter?
Trapping particles of foreign matter
What does the hypogeal layer or Schmutzdecke consist of in a slow sand filter?
Bacteria, fungi, protozoa, rotifera, and aquatic insect larvae
What happens as the biofilm thickens in a slow sand filter?
The performance of the filter reduces
What is the role of the underlying sand in a slow sand filter?
Providing support medium for the biological treatment layer
Why is it necessary to refurbish a slow sand filter?
The biofilm thickens and reduces the rate of flow through the filter
Learn about the process of water filtration and the formation of the Schmutzdecke layer in slow sand filters. Understand how raw water passes through sand layers to the bottom of the filter room and how the Schmutzdecke layer plays a crucial role in the filtration process.
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