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