Determination of Important Parameters in Affecting the Uptake of Reactive Black 5 by Chitosan Beads through Statistical Approach

Table 5

Experimental range and levels of independent variables of RB5.

Dye	Factors	Factor code	Range and levels (coded)
			−1	0	+1
RB5	pH	𝐴	3.00	7.50	12.00
	Sorbent dosage (g)	𝐵	0.10	0.55	1.00
	Initial dye concentration (mg/L)	𝐶	25.00	62.50	100.00