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Regeneration method for resin used for treatment on high-boiling residue wastewater

A technology of resin regeneration and high boiling substances, which is applied in separation methods, filter regeneration, special treatment targets, etc., can solve the problems of low regeneration rate, achieve the effect of increasing regeneration rate and reducing the difficulty of desorption

Inactive Publication Date: 2019-09-20
JIANGSU NJU ENVIRONMENTAL TECH
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Problems solved by technology

[0007] Aiming at the problem that the steam desorption method used in the prior art has a low regeneration rate when dealing with resins adsorbing high boiling substances, the present invention provides a resin regeneration method for treating waste water containing high boiling substances, which can effectively improve the use of Regeneration rate of industrial wastewater resin with non-polar organic solvent as desorbent

Method used

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  • Regeneration method for resin used for treatment on high-boiling residue wastewater
  • Regeneration method for resin used for treatment on high-boiling residue wastewater

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Embodiment 1

[0032] The wastewater produced by chlorinated cyanide has the characteristics of strong acidity, high concentration of organic matter, relatively stable physical and chemical properties of organic matter, and high boiling point of some organic matter, which can hardly be treated by conventional processes. For the treatment of such acidic waste water, activated carbon adsorption and resin adsorption are generally used. Technology, activated carbon adsorption technology has a better treatment effect, but it has disadvantages such as difficult regeneration, poor environment for adsorbent replacement, and high operating costs. One of the keys to resin adsorption technology is the desorption and regeneration ability of the resin. High boiling substances in wastewater often lead to It is difficult to completely desorb the problem, therefore, the present invention further improves the resin regeneration rate by improving the resin desorption efficiency; the waste water containing high ...

Embodiment 2

[0050] The waste water quality that adopts in the present embodiment is identical with embodiment 1, and the resin that is used for adsorption adopts the NDA-100 of Jiangsu Nanda Environmental Protection Technology Co., Ltd., and concrete treatment steps are as follows:

[0051] A kind of resin regeneration method for treating waste water containing high boilers of the present invention is realized by the following steps:

[0052] 1) Use a pump to pump the chlorinated bianium production wastewater in the water storage tank into the filter device at a certain flow rate and pass through the quartz sand filter filter system to remove mechanical impurities in the wastewater. The filter is regularly backwashed according to the water quality, and the backwash water After collection, it will be purified and treated by the bag filter system for the next backwash. The filter residue needs to be disposed of properly, and the filtered wastewater will enter the resin adsorption system for ...

Embodiment 3

[0059] The waste water quality that adopts in the present embodiment is identical with embodiment 1, and the resin that is used for adsorption adopts the NDA-100 of Jiangsu Nanda Environmental Protection Technology Co., Ltd., and concrete treatment steps are as follows:

[0060] A kind of resin regeneration method for treating waste water containing high boilers of the present invention is realized by the following steps:

[0061] 1) Use a pump to pump the chlorinated bianium production wastewater in the water storage tank into the filter device at a certain flow rate and pass through the quartz sand filter filter system to remove mechanical impurities in the wastewater. The filter is regularly backwashed according to the water quality, and the backwash water After collection, it will be purified and treated by the bag filter system for the next backwash. The filter residue needs to be disposed of properly, and the filtered wastewater will enter the resin adsorption system for ...

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Abstract

The invention discloses a resin regeneration method for resin used for treatment on high-boiling residue wastewater, and belongs to the field of resin regeneration. The method comprises the following steps: 1) carrying out mechanical impurity removal on high-boiling residue wastewater; 2) adsorbing high-boiling residues in the effluent subjected to impurity removal through resin; 3) carrying out nitrogen stripping treatment on the resin adsorbed with the high-boiling residues; and 4) desorbing the resin subjected to air stripping treatment in the step 3) by a non-polar organic solvent. According to the present invention, with the application of the method to treat the resin, the regeneration rate of the resin is substantially improved compared to the direct desorption of the resin adsorbing the high-boiling-point substance by using the non-polar organic solvent.

Description

technical field [0001] The invention belongs to the field of resin regeneration, and more specifically relates to a resin regeneration method for treating waste water containing high boilers. Background technique [0002] Resin adsorption technology is a common method to remove organic impurities in industrial wastewater. It has the advantages of high adsorption capacity and low operating cost, and solves the problem of industrial wastewater treatment. At the same time, because the resin can be regenerated repeatedly, its efficient regeneration can further reduce The cost of wastewater treatment. [0003] The desorption regeneration method commonly used in adsorbing organic matter resins is as follows: after preliminary desorption with lye, then deep desorption with methanol, such as the prior art of Chinese Patent Publication No. CN101066824A discloses 1-amino-8-naphthol-3 , 6-disulfonic acid production wastewater treatment and its recycling method, the production wastewat...

Claims

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Application Information

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IPC IPC(8): B01J20/34C02F1/28C02F103/36
CPCB01J20/3475B01J20/3458B01J20/3466B01J20/3425C02F1/285C02F2303/16C02F2103/36
Inventor 王宁吕振华张炜铭阮志伟林原朱兆坚周兵郭孝虎翟廷婷
Owner JIANGSU NJU ENVIRONMENTAL TECH
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