Research Article

Optimization of Aqueous Two-Phase Systems for the Recovery of Soluble Proteins from Tannery Wastewater Using Response Surface Methodology

Figure 5

Response surface and contour plots showing the effect of process variables in uncoded values on % recovery. ((a) and (b)) NaCl and temperature; ((c) and (d)) pH and temperature.
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(a)
217483.fig.005b
(b)
217483.fig.005c
(c)
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(d)