Patent ID: 7550082
Filing Date: 2009-06-23
Classification: C02F,Y10S

Abstract:
1. Equipment for treating an ammonium containing liquid by anaerobically biologically denitrifying ammonium in the ammonium containing liquid, the equipment comprising: an anaerobic ammonium oxidation tank in which heterotrophic denitrifying bacteria and anaerobic ammonium oxidizing bacteria are present, an inflow section of allowing the ammonium containing liquid to flow into the anaerobic ammonium oxidation tank, a discharge section of discharging the liquid treated in the anaerobic ammonium oxidation tank, a nitrate storage tank of storing a certain concentration of nitrate, a nitrate addition device of adding nitrate to the anaerobic ammonium oxidation tank from the nitrate storage tank, a nitrate addition amount control device of controlling the amount of the nitrate added, an organic substance storage tank of storing a certain concentration of an organic substance, an organic substance addition device of adding the organic substance to the anaerobic ammonium oxidation tank from the organic substance storage tank, and an organic substance addition amount control device of controlling the amount of the organic substance added.