Process of ammonia removal from anaerobic digestion and …
On average, during the 180 days of pilot plant experimentation, 4.1 g N–NH 4 per kg of sludge fed to the digester, i.e. 19.3 g N–NH 4 per kg of total solids (TS) fed to the digester, are stripped from digestate and recovered as ammonium sulphate, demonstrating the feasibility of the proposed concept.