Intermittent aeration on carbon and nitrogen turnover in landfill simulation reactors

In the present research, six landfill simulation reactors (Ca, Cb, Ia, Ib, Aa, Ab) were filled with municipal solid waste and managed in order to compare an intermittent solution for the aeration of waste with continuous air injection. The experiment was divided in two main phases: landfill simulation (LS) and remediation simulation (RS). The LS phase was made by a pre-aeration, lasted 13 days, and a 53-days long anaerobic period. The RS phase lasted 142 days during which the six columns were managed in three different ways: Ca and Cb were continuously aerated; Ia and Ib were intermittently aerated using the same flux; Aa and Ab were maintained anaerobic.