Adsorbent Type

Dye

RR-2

RB-4

qt
(mg dye/g solid)

Removal
(%)

qt
(mg dye/g solid)

Removal
(%)

Poppy Bagasse

6.75

13.69

9.49

19.35

Sugar Beet Bagasse

11.06

21.18

12.31

25.37

Aluminium Hydroxide Sludge

14.92

30.19

31.80

70.90

Phosphogypsum

1.96

3.76

0.21

0.43

Ferrochromium Plant Waste

2.47

4.68

3.13

6.45

Orange Peel

3.98

8.08

2.50

5.16

Table 1: Comparison of removal percentages and adsorption capacities obtained with different solid wastes (C0= 100 mg/L; CA= 2 g/L; particle size: 355-500 µm; initial pH∼7; N= 200 rpm; T= 25°C, t= 1 day).