Treatment of Organic Pollution in Ionic Resins

Alfa Chemistry can help your resin stay away from organic contamination. Organic pollution will not only reduce the working exchange capacity of the resin, but also deteriorate the quality of the effluent, which will seriously affect the progress of the project and cause huge economic losses. In cooperation with Alfa Chemistry, we will regularly check and replace your resin, and dispose of the contaminated resin.

The mechanism of resin absorption of organic

The ionic resin contains porous ion channels in a three-dimensional network structure. The inner wall of the channel is covered with a large number of functional groups, which serve as the active points of the ion exchange reaction. Once this active site is covered, it will hinder the ion exchange process. Therefore, in the ion exchange process, once the ions or macromolecules with high exchange potential and strong adhesion are adsorbed or exchanged on the resin, it is difficult to elute during regeneration, which will cause the ion exchange process to be blocked. In another case, insoluble deposits are generated during the ion exchange reaction and deposited inside the resin, blocking the ion exchange channels. (Ju F.,2015)

Characteristics of Organic Pollution Resin

• The color becomes darker, from light yellow to dark brown to black.
• The working exchange capacity is reduced, and the cycle water production is significantly reduced.
• The organic acid leaks into the effluent water, increasing the conductivity of the exchange fluid.
• The SiO₂ content increases.
• The amount of cleaning water increased.

Commonly methods of resuscitation

The resuscitation effects of various resuscitation methods are shown in Table 1.

Table 1. Comparison of resuscitation effects of various resuscitation methods

It can be seen from Table 1 that among the four resuscitation methods, the total exchange capacity of contaminated resin after resuscitation by organic solvent method can reach up to 3.03mmol/g, and it can increase the solubility and migration power of organic matter, which is the best resuscitation method.

Alfa Chemistry provides resin organic pollution treatment services. Our mission is to help customers reduce operating costs and improve production efficiency. We have industry-leading regeneration technology and are committed to providing you with high-quality solutions. Our customers have direct access to our experts and give timely feedback to any online inquiries. If you are interested in our services, please contact us.

Reference

1. Ju F. Organic Pollution and Recovery of Ion Exchange Resin[J]. Journal of Environmental Management College of China, 2015.