A method is suggested for the decomposition of ammonium nitrate contained in effluent liquors. This involves the electrochemical reduction of the nitrate to ammonium nitrite with subsequent decomposition, by heating, to nitrogen and water. The feasibility of the method was studied by means of a number of electro¬chemical experiments designed to test various electrode systems and a series of chemical experiments in which the rate constant for the decomposition of ammonium nitrite was determined, were also carried out Various theoretical aspects of the system are discussed.
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