Method for rapid starting of anaerobic ammonium oxidation granular sludge by using UASB

The invention provides a method for rapid starting of anaerobic ammonium oxidation granular sludge by using UASB, which belongs to the field of treatment and regeneration of municipal sewage. According to the invention, a UASB reactor is used, wherein the upper part of the UASB reactor is filled with a filling material and used as a biomembrane reaction zone, and the lower part of the UASB reactor is an activated sludge zone; the stages of immobilization of a biomembrane, starting of the activated sludge and reinforcement of the granular sludge are carried out; thus, in 66 days, overall nitrogen removal load reaches 4.34 kgN/m /d, an average particle size of the sludge is 1.0 mm, SV2 is equal to SV10, and the anaerobic ammonium oxidation granular sludge is successfully started; and compared to a method of culturing the anaerobic ammonium oxidation granular sludge by using an SBR reactor advocated by Zhihong Zhao and the like (2007), the method provided by the invention has the advantages that time for starting of the granular sludge is reduced by 25 d and overall nitrogen removal load is 4.3 kgN/m /d higher.