Water-absorptive resin for microbial carrier

摘要: A water-absorptive resin, which comprises a cationic crosslinked polymer comprising at least 10% by weight of monomer unit(s) and containing magnetic material therein, is used as microbial carrier in fluidized bed biodisposer. This resin can serve when merely introduced into liquor microorganism. Thus seeding be readily carried out using the same. Further thus recovered. In addition, specific gravity resultant gel, i.e. has absorbed water, acting carrier, closely similar to that filtrate. Therefore gel simply stirring same slightly by, for example, air diffusion.