Ozone biofiltration

A combined water treatment process to reduce natural organic matter (NOM) which is a water disinfectant byproduct precursor. Water is first ozonated (ozone is mixed into the water flow to oxidize organic matter, cyanide, iron and manganese) and then passed through a biofilter (a filter bed laden with microorganisms that break down organic matter into carbon dioxide, water and salts).

Source: GreenFacts

The ozonation biofiltration combination is known to be an effective treatment for water that is high in dissolved organic carbon and/or for taste and odor removal.

Disinfectant(s) - Granular activated carbon - Membrane filtration - Natural organic matter - Ozone - Precursor(s)

GreenFacts Summary on Water Disinfectants & disinfectant by-products:

• 1.4 How can the amount of disinfectant by-products be reduced?

Chlorine Sodium Hypochlorite