C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/9
C02F 3/02 (2006.01) C02F 3/12 (2006.01) C02F 3/30 (2006.01)
Patent
CA 1141489
ABSTRACT OF THE DISCLOSURE A process for promoting the reabsorption and retention by an activated biomass of phosphorous values previously contained by the biomass and released under anaerobic conditions, which process requires initially subjecting the biomass in admixture with a liquid medium to treatment under aerobic conditions employing a relatively high DO. When the pH of the mixture stops increasing, the aerobic treatment is continued but under a second, reduced DO level.
362447
Krichten David J.
Nicholas David M.
Air Products And Chemicals Inc.
Mcfadden Fincham
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