Fig. 3. The effluent pH (blue symbols and right y-axis) and concentrations of SO42− (black symbols) and Cl− (red symbols) for Zr(Sb)O2 (closed symbols) and SO42− and NO3− for ZrO2 (open symbols). The uncertainties are not shown in the graph due to the clarity and were 5% (NO3−), 3% (Cl−) and 4.5% (SO42−) of the reported concentration for individual samples.
