Fig. 4From: Linkage of pipeline blockage to coagulation-flocculation process: effect of anionic polymer and pHEffect of polymer on residual Al deposition (a, b, c) and residual Cu deposition (d, e, f). (Experimental conditions: Initial turbidity 1140 NTU; PACl dosage 0, 10, 20, 30, 40, and 50 mg L−1; polymer dosage 0, 1, and 2 mg L.−1; adjusted pH at 8.5)Back to article page