C - Chemistry – Metallurgy – 05 – F
Patent
C - Chemistry, Metallurgy
05
F
C05F 3/00 (2006.01) C02F 1/38 (2006.01) C02F 1/52 (2006.01) C02F 3/00 (2006.01) C02F 3/12 (2006.01) C02F 3/30 (2006.01) C05F 3/06 (2006.01)
Patent
CA 2066466
ABSTRACT The invention relates to a method for processing manure, liquid manure and/or Kjeldahl-N containing waste water being subjected to a nitrification in an aerated reactor containing active sludge and to a denitrification in a high rate recirculation denitrification reactor (13) containing a very compact biomass capable of converting nitrate to nitrogen gas. The loading of the nitrification reactor (9) being controlled to obtain an optimal nitrification and denitrification, the effluent from the nitrification reactor (9) partially being passed to the recirculation denitrification reactor (13), adding a source of carbon to the effluent to be passed to the recirculation denitrification reactor (13) and passing another portion of the effluent stream from the nitrification reactor (9) to a separation step (19) to separate a sludge, the effluent from separation step (19) being passed to a discharge line denitrification reactor (37) under the addition of a carbon source if desired. The invention further relates to an apparatus constructed for this purpose.
Klapwijk Abraham
Koster Iman Willem
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Ecotechniek B.v.
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