PURPOSE: To contrive to recover and reuse low-electric conductive liquid waste, while saving a necessary amount of water to be used, by reserving and using the low-electric conductive liquid waste in the step of washing ion-exchange resin for its regeneration.
CONSTITUTION: The liquid waste of sluicing water 8 is sent through piping 10 to a liquid waste tank 2 and partially drained off. Since the low-electric conductive liquid waste reserved therein has the approximately same properties as those of water to be used for backwashing/regeneration, it is divided through piping 11 into two parts, individually introduced into the lower and upper sites of a cation-exchange resin tank 3 and used for the regeneration of resin. It is introduced into an anion-exchange resin tank 4 and used therein by the same way, too. Thus, the drainage of the low-electric conductive liquid waste is reduced, in its amount.
HAGIWARA MASAHIRO
IRIE HIROMITSU
OOTANI TAKU
TOKYO SHIBAURA ELECTRIC CO
| JPS5794349A | 1982-06-11 | |||
| JPS5228487A | 1977-03-03 | |||
| JPS50128683A | 1975-10-09 | |||
| JPS54127871A | 1979-10-04 | |||
| JPS5919550A | 1984-02-01 | |||
| JPS5919551A | 1984-02-01 |