Valorization of Agroindustrial Wastes as Biosorbent for the Removal of Textile Dyes from Aqueous Solutions

Table 3

Langmuir model parameters.

Dye	Brewer’s spent grains				Orange peel
	𝑞max (mg g^−1)	𝑏 (L mg^−1)	𝑅^2	∑𝑒^2	𝑞max (mg g^−1)	𝑏 (L mg^−1)	𝑅^2	∑𝑒^2
BB41	32.4±2.3	0.021±0.007	0.772	66.5	157.2±4.2	0.021±0.002	0.992	108.4
RB5	22.3±1.9	0.0077±0.0019	0.911	12.2	62.6±14.8	0.0012±0.0004	0.977	8.2
AB1	19.8±0.3	0.019±0.001	0.985	1.26	45.3±7.5	0.0086±0.0042	0.737	102.2