The service life and economic indicators of ion exchange membranes in electrolytic cells are closely related to the quality of secondary saltwater. As an important step in the secondary refining of brine, the regeneration frequency of the chelating and resin tower directly determines the discharge of wastewater in the caustic soda production system. How to achieve "energy conservation and emission reduction" and "clean production"?

The use of calcium magnesium online analyzer can prolong the regeneration cycle of resin tower while ensuring the quality of saltwater, thereby achieving the goal of saving raw materials consumed in the regeneration process.

The secondary brine process in the chlor alkali industry uses a three tower operation mode for the chelating resin tower. The crude brine passes through the chelating resin in the resin tower to adsorb calcium, magnesium, and other divalent impurity ions, meeting the requirements for refined brine. The A-B-C tower always operates with two towers and one tower regenerates. The calcium magnesium online analyzer can detect two different channels of saltwater with one meter. One channel always detects the quality of saltwater sent to the electrolytic cell, while the other channel detects the quality of saltwater in the front tower through a pneumatic valve based on the operation of the resin tower. When the salt water exceeds the standard, switch the resin tower in a timely manner to ensure the quality of the salt water. This cannot be achieved by ICP analyzer detection.