floc
- noun
- /flɒk/
- Specialized
- During water treatment, the floc forms a small, loosely aggregated mass of particles that helps clarify the liquid.
Examples
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In the settling tank, the floc and raw water are completely separated.
Academic text (2003) -
The sand's weight forces the floc to fall to the bottom, allowing the treated water to rise to the top for further treatment.
Academic text (2003) -
This floc increases the amount of metal needed when precipitating phosphorus.
Academic text (1998) -
Larger aggregates will be removed by settling floc during conventional treatment and by physical separation during advanced membrane filtration.
Academic text (2013) -
These metals react not only with phosphorus but also with water (via hydrolysis) to create a hydroxide floc.
Academic text (1998) -
The typical chemical addition process is to pH adjust, add a coagulant, and then add a flocculant to wrap up or sweep the floc particles together.
Academic text (1998) -
More rainwater was added, and the process was repeated until 2,500 gallons had been treated, from which 5 gallons of settled floc was returned for analysis.
Academic text (1996) -
Power-floc captures many different contaminants, McDaniel says, and it can be reformulated for other wastes.
Academic text (1994) -
This serves to create a pin-point floc on the filter beds that attracts and holds minute particles, including Giardia cysts and viruses.
Academic text (1998) -
The water then moves into the maturation tank for further mixing that allows the sand and flocculant particles (floc) to join together before passing into the settling tank.
Academic text (2003)
Synonyms
A small loose lump of fine material that forms in a liquid
How Aggregated
Surface Forms
Etymology
Floc comes from the Latin word floccus, which means 'tuft' or 'small piece of wool', so picture tiny tufts of particles sticking together in water. That's why a floc is a small, loose clump of particles that often settles to the bottom.