Pollution

Pollution

For terms related to pollution.

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Pollution

effluent reuse

Environment; Pollution

Effluent reuse is the action of using treated wastewater effluent from the treatment processes again.

electrodialysis

Environment; Pollution

Electrodialysis is "Dialysis in which the movement of ions is aided by an electric field applied across the semipermeable membrane."

sequencing batch reactor (SBR)

Environment; Pollution

"SBR reactors treat wastewater such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the wastewater to reduce ...

foaming

Environment; Pollution

"Form or produce a mass of small bubbles; froth." Foaming is a sign of "nutrient deficiency" for activated sludge.

"Nutrient deficiency causes stressful conditions for bacteria. Nutrient deficient bacteria are unable to produce proper cell walls and as reaction to stress will produce excess amounts of a slimey, ...

bulking

Environment; Pollution

"An activated sludge that does not settle well and may overflow the weirs of the final clarifiers resulting in excess suspended solids in the effluent. It is usually caused by filamentous ...

biological nitrogen removal

Environment; Pollution

Biological nitrogen removal means nitrification/denitrification process, the ammonia nitrogen in the wastewater needs first to be converted into nitrite and nitrate by autotrophic organisms under ...