TREATMENT OF EARTH AND SAND CONTAINING HEGHLY WATER-ABSORBING RESIN GEL

摘要

PURPOSE:To facilitate the treatment of earth and sand contg. highly water- absorbing resin gel by irradiating the earth and sand with UV. CONSTITUTION:In earth and sand excavating work, gel of a highly waterabsorbing resin such as a hydrolyzate of a starch-acrylonitrile graft polymer or a cellulose-acrylonitrile graft polymer is added to regulate the flowability of excavated earth and sand. These earth and sand are then irradiated with UV. The quantity of UV is properly regulated according to the gel content, the strength of the gel, the kind of the highly water-absorbing resin and the kind of the earth and sand. The earth and sand can be efficiently treated and work efficiency is increased.