Abstract:

Quicklime was used as a treatment agent to modify electrolytic manganese residue and separate ammonia.The effect of dosage of quicklime，reaction time，stirring frequency on the separation rate of ammonia from electrolytic manganese residue are investigated.The results show that the treatment of electrolytic manganese residue by quicklime has good ammonia-nitrogen separation effect，and with the optimum technological parameters for the treatment of electrolytic manganese residue—100 g quicklime for 1 kg electrolytic manganese residue (per kg)，2 h of reaction time，stirring frequency of 15  Hz，the separation rate of ammonia from nitrogen can reach 91%.

Key words: electrolytic manganese residue;ammonia nitrogen;deamination；technological , conditions