Process for biologically purifying waste waters

Details Process for biologically purifying waste waters Process for biologically purifying waste waters

C - Chemistry, Metallurgy

02

F

362/9

C02F 3/02 (2006.01) C02F 1/72 (2006.01) C02F 3/00 (2006.01) C02F 3/30 (2006.01)

Patent

CA 2036245

Abstract: Process for biologically purifying waste waters The invention relates to a continuous process by which waste water containing low to high concentrations of organic constituents and total nitrogen is biologically purified to such an extent that the organic constituents are minimized, the content of total nitrogen is completely nitrified, if it exceeds the assimilation demand, and the nitrate formed is reduced. In this process, the expenditure on the oxygen introduction and the expenditure on the denitrification are minimized. The amount of excess sludge is extremely small.

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