▎ 摘　　要

NOVELTY - Additive ultrasonic dirt, comprises cellulose and functional nano material, in a mass ratio of (3-5): (2-5), preferably 1: 1. USE - Used as ultrasonic descaling additive. ADVANTAGE - Theadditive removes dirt; and can avoid cavitation effect too strong damage pipe wall structure phenomenon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for ultrasonic descaling method, comprises (i) adding the scale pipeline into standard domestic water, detecting the initial TDS value; (ii) pouring out the standard domestic water, adding cellulose and functional material in the scaling pipeline, connecting the ultrasonic transducer, connecting the ultrasonic control box, adjusting the power to test, recording time; (iii) running for a period of time, adding cross-linking agent to continue to operate; (iv) adding standard domestic water after the operation is finished and detecting the final TDS value.