ACID REMOVING APPARATUS, PURE WATER PRODUCING APPARATUS PROVIDED THEREWITH, AND WEAKLY BASIC ANION-EXCHANGE RESIN FOR ACID REMOVAL

摘要

PURPOSE: To provide an acid removing apparatus which has high exchange capacity, can be cleaned at high efficiency at the time of regeneration and regenerated at high efficiency. CONSTITUTION: An acid removing apparatus is filled with a weakly basic anion- exchange resin mainly consisting (meth)acrylic acid-divinyl benzene copolymer and containing 10-30 equivalent % of quatenary ammonium group per total ion-exchange resin volume.