A method of treating and regenerating a high-load and high-concentration wash waste liquid (50), which is discharged from a washing stage (20) and a rinsing stage, by vacuum distillation. In a washing method and a washing apparatus, a multitank-connected type rinsing tank unit (31) in which a plurality of tanks are connected so that a rinse liquid (32) is sent in order in a direction opposite to the direction in which a material to be washed is transferred is used. A wash waste liquid (50) discharged from a rinsing tank (31c) positioned at the most downstream side of the multitank-connected type rinsing tank unit (31) is vacuum distilled, and a condensate (54) obtained is recycled to a rinsing tank (31a) positioned at the most upstream side of the tank unit. The vacuum distillation is carried out in the presence of, for example, a silicone defoaming agent (61) or a silicone defoaming component. The vacuum distillation is also carried out as a wash waste liquid is allowed to flow down along a heated wall surface to form a film of the liquid thereon.
                            一种通过真空蒸馏处理和再生从洗涤阶段(20)和漂洗阶段排出的高负荷和高浓度洗涤废液(50)的方法。在一种洗涤方法和一种洗涤设备中,使用了一种多槽连接型漂洗槽装置(31),其中多个槽连接在一起,使漂洗液(32)按与待洗材料输送方向相反的方向依次输送。从位于多罐连接型漂洗罐装置(31)最下游一侧的漂洗罐(31c)排出的漂洗废液(50)经过真空蒸馏,得到的冷凝液(54)被循环到位于罐装置最上游一侧的漂洗罐(31a)。真空蒸馏是在有机
硅消泡剂(61)或有机
硅消泡组分等存在的情况下进行的。在进行真空蒸馏时,还允许洗涤废液沿加热的壁面流下,在其上形成一层液体膜。