Fixed bed counter-current regeneration device of ion exchange resin and application method of fixed bed counter-current regeneration device

Abstract

The invention discloses a fixed bed counter-current regeneration device of ion exchange resin and an application method of the fixed bed counter-current regeneration device and belongs to the field of ion exchange resin regeneration. The fixed bed counter-current regeneration device comprises a cyclone separator, a regenerative reactor, an all-mixed resin reactor, a desorption liquid storage tank and a regenerant storage tank; the cyclone separator is arranged at the top of the regenerative reactor; the upper part of the cyclone separator is communicated with the all-mixed resin reactor; a resin inlet is formed at the bottom of the cyclone separator; a resin bed and a resin filter are arranged in the regenerative reactor; a resin outlet and a regenerant inlet are formed in the bottom of the regenerative reactor; the resin outlet is communicated with the all-mixed resin reactor; the regenerant inlet is communicated with the desorption liquid storage tank and the regenerant storage tank separately; and a regenerant outlet is also formed in one side of the regenerative reactor and is communicated with the desorption liquid storage tank. The resin regeneration efficiency can be effectively improved through the separator in a counter-current manner, the yield of a desorption liquid is reduced, mechanical wear of the resin is avoided and the fixed bed counter-current regeneration device can be matched with large-scale ion exchange resin application engineering.

Description

technical field [0001] The invention relates to the technical field of ion exchange resin regeneration, and more specifically relates to an ion exchange resin fixed-bed countercurrent regeneration device and its application method. Background technique [0002] With the continuous advancement of industrialization and urbanization, the shortage of water resources in my country has become increasingly prominent, and the prevention and control of water pollution has become the top priority of environmental governance. [0003] Ion exchange technology has a wide range of applications in the advanced treatment of drinking water sources and the reuse of reclaimed water. While ion exchange resin can effectively remove organic matter in water, it also has good removal effect on toxic inorganic ions such as nitrate, sulfate and bromide. At the same time, it can effectively reduce water disinfection by-products and biological toxicity. [0004] After the ion exchange resin is saturat...

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Problems solved by technology

[0009] Aiming at the problems of low regeneration efficiency, large mechanical wear, and large output of desorption liquid in traditional fluidized bed resin regeneration devices, the present invention provides an ion exchange resin fixed bed countercurrent regeneration device and its use method, which can systematically carry out the resin regeneration process Comprehensive control, reduce resin wear, improve resin regeneration efficiency, and at the same time effectively reduce the generation of desorption liquid, saving disposal costs

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