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
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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.
