There are multiple categories of micropollutants, forming two main families:
The choice of treatment technology depends on the type of micropollutant that must be removed but also the desired objectives, investment and operating costs. Each technology has its scope of action which varies according to its place in the treatment chain and the properties of the raw water to be treated.
Due to its expertise and wide range of technologies, SUEZ is able to develop the best technical combinations to deliver an optimal solution to each need.
The Pulsazur™ technology proposed by SUEZ uses lamellar clarifiers with a powdered activated carbon pulsed blanket. These clarifiers remove the majority of micropollutants. Their effectiveness increases tenfold on adsorbable compounds such as pesticides and alkylphenols.
Water circulates evenly and uniformly within the structure, from bottom to top, crossing the blanket of activated carbon. Pulses optimise the capture of dissolved organic matter and micropollutants by the activated carbon, favouring their adsorption and their subsequent removal by lamellar settling.
Adsorption is not only efficient and economical, it is also environmentally sound: the Pulsazur™ clarifier can operate with or without polymers; it consumes fewer reagents and uses less energy.
oxidising organic substances, ozone destroys a certain number of
micropollutants or makes them more easily biodegradable. Advanced
Oxidation Process (AOP) technologies can also be used.
Oxidation and in particular ozonation, can break down a wide spectrum of organic micropollutants. Recent changes to regulations mean that its use is encouraged in Europe to combat micropollutants.
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