DESIGN AND OPTIMIZATION FOR HAZARDOUS JAROSITE WASTE RECYCLING IN ENVIRONMENTALLY SUITABLE COMPOSITE PRODUCTS USING RESPONSE SURFACE METHODOLOGY - Management of Hazardous Residues Containing Cd - page 85

Actual Components:
X 1 =A: Jarosite = 515 g
X 2 = B: Clay = 282.5 g
X 3 = C: PCCRs = 202.5 g

Figure 17. Response trace plot for shrinkage (%) of s/s sintered Jarosite waste -clay -
PCCRs bricks.

A: Jarosite
890 g

A: Jarosite
890 g

2 2

36.58 36.58

Design Points Design Points

30.63 30.63

24.68 24.68

0 g 0 g 110 g 110 g

12.78 12.78

2 2

18.73 18.73

12.78 12.78

2 2 2 2

725 g 725 g 275 g 275 g 615 g 615 g

B: Clay B: Clay C: PCCRs C: PCCRs

Shrinkage (%) Shrinkage (%)

Figure 18. Response contour plot for shrinkage (%) of s/s sintered Jarosite waste -clay
-PCCRs composite bricks.