Fig. 5From: Linkage of pipeline blockage to coagulation-flocculation process: effect of anionic polymer and pHEffect of high Cu and pH on residual Al deposition (a, b, c) and residual Cu deposition (d, e, f). (Experimental conditions: Initial turbidity 1260 NTU; PACl dosage 0, 10, 20, 30, 40, and 50 mg L−1; polymer dosage 0, 1 mg L−1; adjusted pH at 8, 8.5, 9, and 9.5; CuSO4 addition of 50 mg L.−1)Back to article page