15 褐炭を用いた無電解めっき廃液からのニッケル回収におけるニッケル回収率の向上(改質・処理・クリーン化(2))

抄録

Brown coal has many oxygen-containing functional groups such as carboxyl groups and it is ion-exchangeable with metal species. We have carried out a nickel recovery from nickel electroless plating wastewater using brown coal. However, it was recognized that ion exchange was obstructed by the influence such as the phosphoric acid ions in wastewater. In this study, it aims at the improvement of the nickel recovery by removing the phosphoric acid ion.