Gel type anion and cation exchange resin recovery device and recovery method

Abstract

The invention relates to a gel type anion and cation exchange resin recovery device and recovery method. The recovery device comprises a first liquid medicine tank, a second liquid medicine tank and an ultrasonic fluidized bed, liquid inlets are formed in the tops of the first liquid medicine tank and the second liquid medicine tank, liquid outlets are formed in the bottoms of the first liquid medicine tank and the second liquid medicine tank, a liquid inlet and a resuscitation resin outlet are formed in the lower portion of the ultrasonic fluidized bed, a liquid outlet and a waste resin inlet are formed in the upper portion of the ultrasonic fluidized bed, an ultrasonic transducer is arranged on the side face of the ultrasonic fluidized bed, and a water distribution plate is arranged in the ultrasonic fluidized bed and divides the ultrasonic fluidized bed into an upper inner cavity and a lower inner cavity; a liquid outlet of the first liquid medicine tank and a liquid inlet and a liquid outlet of the second liquid medicine tank are connected with a liquid inlet and a liquid outlet of the ultrasonic fluidized bed through pipelines respectively, and the pipelines control connection and disconnection through valves. The recovery of the gel type anion and cation exchange resin can be realized without replacing any device, and the recovery rate is high.

Description

technical field [0001] The invention relates to a recovery device and a recovery method of a gel-type anion and cation exchange resin, belonging to the technical field of recovery and regeneration of a gel-type anion and cation exchange resin. Background technique [0002] At present, gel-type anion and cation exchange resins are widely used in wastewater treatment, water softening, catalysis and other fields. During use, ion exchange resins are affected by metal ions, organic pollutants, etc., and the exchange capacity of ion exchange resins is constantly changing. down until it fails. The ion exchange resin can recover its ion exchange function through recovery and regeneration after failure. For the failed ion exchange resin, there are usually two treatment methods, one is to discard the polluted resin and replace it with a new resin; the other is to send the polluted resin to the manufacturer for regeneration, and then reload it for use after regeneration. In the forme...

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Problems solved by technology

In the former, waste resin will pollute the environment, and the cost of replacing new resin is high; in the latter, due to the need to return to the factory for regeneration, the time consumed by logistics and transportation affects industrial production

[0003] The traditional resuscitation method has the following problems: 1. The resuscitation solution is a high-concentration solution, which causes serious environmental pollution; 2. The resuscitation solution cannot be recycled and reused, and the utilization rate of the drug solution is low, resulting in serious waste; 3. The recovery of the anion and cation exchange resins requires Carried out in different resuscitation devices, equipment and capital investment are high; 4. Resuscitation efficiency is low

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