Method for enhanced purification of water quality of standard-reaching tail water in town sewage plant

The invention relates to a method for the enhanced purification of the water quality of standard-reaching tail water in a town sewage plant, which is characterized in that: a single biological purifier frame is manufactured by using reinforcing steel bars and steel wires; biological spheres are filled into the single biological purifier frame to manufacture a single biological purifier; a plurality of single purifiers are combined to form a square combination water quality enhanced purification body; the side of the square combination water quality enhanced purification body is connected to a tail water discharge pipeline; when the passing through the square combination water quality enhanced purification body, the standard-reaching tail water is subjected to the enhanced purification under the action of adsorbed degradation of biological membranes on the biological spheres, so that the water quality is improved. The method has the advantages that a device is easy and convenient to manufacture has low cost, c