2.The impact of sulphur overcharge percentage,heating temperature and heating time on percent formation of PbS are studied,and the PbS overcharge percentage,heating time and agitation time for decoppering from lead bullion are investigated too.
3.The optimal conditions of ASBR for treating abattoir wastewater is as follows: using intermission agitation method, SV 30=35%～46%, temperature 25～35℃, react time 24 h, impact load 0.2～0.5 kg/(kg MLSS.d).
