Patent ID: 7754445

Claim:
A process for enzymatically producing a treatment agent in a fluid state that lacks an enzymatic catalyst, the treatment agent comprising at least one oxygenated chemical species in a free state, by bringing into contact in an aqueous reaction bath a mixture comprising: an enzymatic catalyst comprising a peroxidase; a flocculating agent selected from the group consisting of polysaccharides, anionic heteropolysaccharides and polyacrylamines, and/or a coagulating agent selected from the group consisting of salts of aluminum and salts of iron; an oxygen donor; and a substrate; the process comprising: a) forming aggregates of solid particles that are inert to the enzymatic catalyst, wherein the aggregates comprise or incorporate the enzymatic catalyst, and the aggregates are distributed in the aqueous reaction bath, wherein the enzymatic catalyst is in a solid and divided phase, but in a free state, in the aqueous reaction bath; b) generating an oxygenated chemical species in the free state by allowing the enzymatic catalyst to catalyze oxidation of the substrate by the oxygen donor; and c) separating the aqueous reaction bath into a first fraction enriched with the enzymatic catalyst in the solid and divided phase, and a second fraction that lacks the enzymatic catalyst and contains the treatment agent, wherein the first fraction is enriched with the aggregates, and the second fraction is devoid of the aggregates.