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International Journal of Interdisciplinary Research

Table 8 Assessment of various metals in mordant bath and wastewater

From: Ecological risk assessment and health safety speculation during color fastness properties enhancement of natural dyed cotton through metallic mordants

Metals in mordant bath

Metal exhaustion % onto fabric

Residual metal concentration in mordant bath (g/L)

Concentration of metal in dyeing wastewater (g/L)

Legal limits of textile effluents (Tonetti and Innocenti 2009) (g/L)a

5 g/L AlK(SO4)2·12H2O

61.79

1.91

0.11

–

5 g/L FeSO4·7H2O

74.47

1.28

0.29

2

5 g/L CuSO4·5H2O

69.19

1.54

0.19

0.5

5 g/L SnCl2·5H2O

65.86

1.71

0.021

–

  1. aThe given limits are valid for waste water released to a communal waste water treatment plant in Bangladesh