Production and Characterization of Bricks from Bottom Ash and Textile Sludge Using Plastic Waste as Binding Agent

Table 4

Leach analysis result.

Metals	Heavy metal content (ppm)		USEPA regulatory limit (ppm)
	Plastic : bottom ash : sludge (1 : 2 : 2)	Plastic : bottom ash : sludge (2 : 1 : 1)
Chromium (Cr)	ND (nondetectable)	ND	5
Lead (Pb)	ND	0.0442	5
Iron (Fe)	0.8654	1.2142	11
Cadmium (Cd)	ND	ND	100
Zinc (Zn)	ND	ND	500