METHOD FOR CLEANING SLUDGE SOIL, SLURRY OR THE LIKE

摘要

PROBLEM TO BE SOLVED: To provide a method for cleaning sludge soil, a slurry or the like, capable of desorbing hydrophobic organic matter from a solid phase at the normal temperature under atomospheric pressure by reduced energy. SOLUTION: A surfactant and a spherical resin (a) are added to the substance 2 to be treated stored in a reaction tank 1 and the spherical resin (a) floating in the vicinity of the surface of the water in the tank is circulated to the bottom part of the tank through a circulating system 6 and the substance 2 to be treated is irradiated with ultrasonic waves exerting vibrtation and extraction action on the solid phase from an ultrasonic transmitter 9 while the spherical resin (a) is circulated within the tank and hydrophobic organic matter is transferred from the solid phase to a liquid phase by the vibrtation and extraction action to be desorbed from the solid phase and the re-adsorption of the hydrophobic organic matter by the solid phase is prevented by the bonding of the surfactant with the hydrophobic organic matter and the desorbed hydrophobic organic matter is adsorbed by the spherical resin (a).