PROCESSING UNIT OF SULFATE-CONTAINING LIQUID AND PROCESSING METHOD OF SULFATE-CONTAINING LIQUID

PROBLEM TO BE SOLVED: To provide a processing unit of sulfate-containing liquid and a processing method of sulfate-containing liquid which can provide solidified waste which can prevent swelling after solidification and manage the solidified waste safely.SOLUTION: A processing unit 1 of sulfate-containing liquid comprises: a concentrating unit 12 concentrating the sulfate-containing liquid and getting concentrate; a mixing unit 14 mixing the concentrate and solidifier making the concentrate solidify and getting solidified; a solidifier feeding unit 16 feeding the solidifier to the mixing unit 14; and a control unit 18 controlling supply of the concentrate to the mixing unit so that sulfate content in the solidified becomes less than saturated solubility for water in the solidified.SELECTED DRAWING: Figure 1 【課題】固化処理後の膨張を防ぐことが可能な固化体が得られ、固化体の安全な管理が可能な硫酸塩含有液の処理装置及び硫酸塩含有液の処理方法を提供すること。【解決手段】本発明の硫酸塩含有液の処理装置１は、硫酸塩含有液を濃縮して濃縮物を得る濃縮部１２と、濃縮物と当該濃縮物を固化させる固化材とを混練して硬化物とする混練部１４と、混練部１４に固化材を供給する固化材供給部１６と、固化物中の硫酸塩含有量が当該固化物中の水分に対する飽和溶解度以下となるように、混練部に対する濃縮物の供給量を制御する制御部１８とを備えたことを特徴とする。【選択図】図１