Activated sludge filling process, used to separate biomass comprising purifying microorganisms from biologically treated water, comprises mixing powdery mineral substance with biomass to form mixed flock having density higher than water

摘要

Process of filling activated sludge to separate a biomass (A) comprising purifying micro-organisms from biologically treated water, comprises mixing a powdery mineral substance (I) with (A) to form a mixed flock having density higher than water, where (I) comprises particles with a base of magnesium and/or calcium in a crystalline structure, which allows the progressive release of magnesium and/or calcium and carbonate anions. Process of filling activated sludge to separate a biomass (A) comprising purifying micro-organisms from biologically treated water, comprises mixing a powdery mineral substance (I) (having size lower than 100 and higher than 5 mu m) with (A) to form a mixed flock having density higher than water, where (I) comprises particles with a base of magnesium and/or calcium in a crystalline structure, which allows the progressive release, in an aqueous medium, of magnesium and/or calcium cations and carbonate anions.