One kind of nitrite removal process

The present invention relates to a method for the removal of chemicals in solution. In order to solve the prior art method is not suitable for practical use with the removal of air contained nitrous acid, nitrous acid and to enhance the removal rate of radioactivity on the premise facilitate operation, the present invention provides the removal of one kind of nitrite , the method comprising the steps of: (1) setting packed column, a packed column built with stainless steel θ ring packing or glass θ ring packing; (2) air into the column packed with the drum by the air inlet by the blower; (3) via the addition through the feed pump into the liquid inlet column packing to be removed into the liquid feed nitrous acid, nitrous acid realized removal. Nitrite removal process of the present invention in the removal of an air carrier tape nitrite, nitrous acid concentration can be made in the feed solution is less than 1.0 × 10-3mol / L, suitable for radioactive operation, and easy to operate, cost inexpensive and can be used 1BP nitrite feed solution is removed.