AUTOMATIC COAGULANT FEEDING SYSTEM

摘要

PURPOSE: An automatic coagulant feeding system is provided to automatically feed coagulant into raw water according to water quality of raw water. CONSTITUTION: The automatic coagulant feeding system comprises an instant mixing device(70) which feeds coagulant into influent raw water for agitation; a weir(71) for controlling effluent flow from the instant mixing device(70); a small filtering device(72) in which effluent from the weir(71) is filtered; a water quality measuring device(73) in which water quality of the effluent from the small filtering device(72) is detected; an analogue digital converting part(74) in which the output signal of the water quality measuring device(73) is converted into digital signal; a control part(75) to output control signals to pumps(51,52,53,54) and valves(61,62,63,64,65).