Method for removing odor of urban domestic sludge by taking liquorice as main auxiliary material

The invention discloses a method for removing the odor of urban domestic sludge by taking liquorice as a main auxiliary material. A solid auxiliary material comprises the raw materials in parts by weight: a liquorice solid auxiliary material, an aromatic auxiliary material, the other auxiliary material and a bacterial agent liquid auxiliary material; the liquorice solid auxiliary material is driedpowder of residues obtained after liquorice or glycyrrhizin extraction and accounts for 5%--50% of the total weight of the sludge; the aromatic auxiliary material is dried and smashed citrus peel oranise or cinnamon or pericarpium zanthoxyli or myrcia or eucalyptus leaves and accounts for 0.1%--10% of the total weight of the sludge; the other auxiliary material accounts for 0.1%--10% of the total weight of the sludge and is composed of diatomite and ferrous sulfate; the bacterial agent liquid auxiliary material accounts for 0.1%--30% of the total weight of the sludge; and a bacterial agent and the solid auxiliary mat