APPARATUS FOR ADSORBING TREATMENT OF WASTE WATER CONTAINING AMMONIA AND TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To perfectly remove ammonia without being affected by fluctuations in the concn. of ammonia in a waste soln. SOLUTION: An ammonia adsorbing column 3 packed with an ammonia adsorbent 5, a nitration column 4 having dissolved oxygen supply function and pH regulating function and having nitrifying bacteria present therein and a separator separating Na from the liquid rich in nitric acid formed in the nitration column 4 are connected in series and the liquid free from Na and rich in nitric acid is supplied to the ammonia adsorbing column at a superficial velocity of 1.0-30m/h as a regeneration soln. of the ammonia adsorbent to regenerate the ammonia adsorbing column 3.