anion exchange resin

The paper considers filtration equipment used for coolant purification in WWER-1000 reactors, which plays an important role in providing an optimal water-chemical regime, reducing radioactive contamination of equipment and extending the service life of reactor components. The operating features of ion-exchange filters are investigated and directions for their modernization are determined.

The removal of dissolved oxygen (DO) from water was studied using anion exchange resin AV-17-8 in a sulphite form. The effects of various operating conditions, such as water flow rates, height of the resin bed and mineralization of water on the removal of DO have been studied extensively. It was shown that its reducing ability depends on the water ionic composition that affects the desorption rate of the sulphite anions. The possibility of efficient water deoxygenation at ambient temperature was demonstrated.