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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