JP2501151B

PURPOSE:To obtain equipment for efficiently separating resin components from washing waste liquid by simple operation by providing structure where a plug body fitted to the upper part of a ring body euipped with a waste liquid falling hole inside can seal the falling hole and opens the top end of the falling hole to inside a vessel body by rotating the plug body or disengaging it from the ring body. CONSTITUTION:A vessel body 1 is for treating washing waste liquid so as to easily filter and remove photosensitive resin components in the washing waste liquid. During the pretreatment, since a waste liquid falling hole 5 is closed by a plug body 8, the washing waste liquid does not move to a basket 10 through the falling hole 5. The temperature is raised in the pretreatment. A coagurant is added. Or these operations may be simultaneously performed and are performed usually while stirring. When the stirring is stopped and the liquid is left as it is, resin settles to in the lower part of the vessel body 1. After settling, when the plug body 8 is moved upward, supernatant passes through the falling hole 5 from the top of the ring body 4 and is filtered by the basket 10 to discharge it to outside of the system, causing the resin components to be effectively removed.