Abstract:

Gas desulfurization liquor is treated with aluminum chloride coagulant. The effects of the factors, such as aluminum chloride concentration, agitating speed, pH value, sedimentation time etc. on the oil removal result are discussed. The influences of the factors on the removal results of turbidity and colourity are investigated. The experimental results show that the oil removal rate and turbidity removal rate can reach 56.82% and 75.26% respectively when aluminum chloride concentration is 800mg/L, agitating speed is 200r/min, sedimentation time is 3h and pH value is 8.0, but the colour removal capability is very low.