Process for regenerating of in-situ electricity of adsorption resin

An adsorption resin and electric regeneration technology, applied in electric regeneration, filter regeneration, petroleum industry, etc., can solve the problems of high cost, high cost, and no comprehensive utilization value of high-concentration waste liquid, so as to reduce regeneration cost and simplify regeneration The effect of craft
CN101007267AInactive Publication Date: 2007-08-01NANJING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV
Publication Date
2007-08-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

A original position electricity regeneration process of adsorbing resin, it wraps the adsorbing resin with cylinder-shaped ion exchange membrane, the adsorbing resin is equipped with anodic in itself and the outer of ion exchange membrane is installed cathode, the two sides of adsorbing resin bed layer are equipped with pore plate to prevent resin leak; after the adsorption of adsorbing resin reaches saturation, the adsorbing resin bed layer is injected with anodic regeneration liquid and the outer of ion exchange membrane is injected with cathode recycle liquid, then the anode and cathode is connected with DC, the organic pollutants absorbed by adsorbing resin is dissociated to make adsorbing resin regenerate and recovery adsorption capacity. The original position electricity regeneration process of adsorbing resin in the invention does not consume and treat the resin regeneration eluent of acid, alkali or organic solvents, reduces the regeneration costs of adsorption resin greatly and simplifies the regeneration process.
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Description

technical field

[0001] The present invention relates to the regeneration of adsorption resins. Background technique

[0002] As a new wastewater treatment technology, resin adsorption technology has been gradually applied to the recycling of useful substances in various types of high-concentration organic wastewater. However, there are many types of pollutants in fine chemical wastewater such as pharmaceutical intermediates, pesticide intermediates, and dye intermediates. The concentration is low, and various adsorption resins can be used to separate it, so as to facilitate the subsequent treatment and standard discharge of wastewater. However, the conventional acid, alkali or organic solvent desorption methods are not only costly, but also the high-concentration waste liquid obtained by desorption has no comprehensive utilization value and must be disposed of by incineration or safe landfill, which is expensive and severely limits resin adsorption. The popularization and a...

Claims

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