What is surging in water treatment?

Surging in water treatment refers to the use of a plunger or surge block to create variations in pressure in a well. This technique helps to dislodge and remove accumulated sediments and debris from the well screen or face, which can enhance the efficiency of water extraction and improve both the quantity and quality of water. By creating a surge effect, the method effectively aids in maintaining water flow and preventing clogging, ultimately ensuring a better and more reliable supply of clean water.

The other options describe processes relevant to water treatment but do not pertain specifically to the action of surging. Filtering water through charcoal focuses on adsorption to remove contaminants, while the removal of heavy metals involves specific treatments to extract those harmful substances. The addition of chemicals to improve water clarity concentrates on optimizing water appearance and quality, but none of these processes involve the physical action of surging to maintain well functionality.