Water Treatment · Treatment Steps
What Is Coagulation in Water Treatment?
Coagulation is the first step in removing the particles that make water cloudy.
Many fine particles stay suspended in raw water and do not settle on their own. A coagulant is a chemical that helps those particles come together so the next steps can remove them. It must enter at the right point and mix quickly with the moving water. This fast mixing step is often called rapid mix. Too little coagulant leaves fine particles that never form floc, so the settled and filtered water stay cloudy. Too much can also leave cloudy water, waste chemical, and add to the sludge. Plants pick the dose with a jar test, which page 53 covers, not by the color of the water. Operators check source quality, chemical supply, pump condition, feed rate, and how the water responds downstream.
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Introduction to Water Treatment Operations
This page comes from the free course. It follows water from its source to the tap, one step at a time, with short knowledge checks and a certificate of completion.
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