| 摘要 |
<p>PURPOSE:To obtain a water-absorbing resin which is used as a carrier for microorganisms in fluid bed living organism treating equipment and can be recovered easily on account of its magnetism by a waste water aftertreatment, by introducing a magnetic substance into a highly water-absorbing cationic crosslinked polymer. CONSTITUTION:The title product is a water-absorbing resin used as a carrier for microorganisms in fluid bed living organism treating equipment, and is obtained by introducing a magnetic substance into a cationic crosslinked polymer containing at least 10wt.% cationic monomer units of the formula as shown (where A is O or NH; B is C2H4, C3H6 or CH2CHOHCH2; R1 is H or CH3; R2 and R3 are each CH3 or C2H5; R4 is H, CH3, C2H5, benzyl or 3-chloro-2- hydroxypropyl; X<-> is an anion) and capable of absorbing water at least 10 times as much as its own weight. This water-absorbing resin exhibits its effect as a carrier for microorganisms if only it is placed in a liquid contg. microorganisms, wherein inoculation is very easy and the carrier can be recovered very easily because it is magnetized.</p> |
