Table 5: Design matrix for Remazol Yellow.

RunspH
A
Adsorbent dosage (g/L)
B
Dye concentration (mg/L)
C
Removal efficiency (%)

1+1+1+111.36
2−1+1+134.91
3−1−1+19.03
4+1+1−122.24
5−1−1−122.70
6+1−1+16.00
7+1−1−17.09
8−1+1−161.00