The existing problems of original 600 m3/h mechanically agitated settling pond in Baoji Power Plant no. 2 have been analysed
and the retrofitting scheme of the settling pond being put forward. Combined with utilization of discharged water of the circulating water
the said scheme includes: (1) aditionally to install inclined pipe; (2)to change the dosing point of coagulant aid; (3)to control the acid dosing; (4) to adjust and repair the mud collector and the sampling points. After retrofitting
the operation test shows that the quality of output water from the settling pond to be excellent