Efficient Removal of 2,4-DCP by Nano Zero-Valent Iron-Reduced Graphene Oxide: Statistical Modeling and Process Optimization Using RSM-BBD Approach

Table 2

Design matrix with experimental results and predicted values.

Run					Experimental	Predicted
	g/L	mg/L	min	pH	%	%
1	-1	-1	0	0	36.73	38.45
2	-1	0	-1	0	50.44	53.54
3	-1	0	0	-1	9.08	6.10
4	-1	0	0	1	35.31	36.12
5	-1	0	1	0	9.46	6.52
6	-1	1	0	0	18.88	19.17
7	0	-1	-1	0	90.11	86.04
8	0	-1	0	-1	34.97	31.78
9	0	-1	0	1	85.46	83.65
10	0	-1	1	0	39.77	47.22
11	0	0	-1	-1	37.39	42.81
12	0	0	-1	1	90.78	91.03
13	0	0	0	0	78.17	71.84
14	0	0	0	0	73.11	71.84
15	0	0	0	0	69.85	71.84
16	0	0	0	0	72.44	71.84
17	0	0	0	0	65.61	71.84
18	0	0	1	-1	18.08	18.01
19	0	0	1	1	46.56	41.32
20	0	1	-1	0	59.96	63.19
21	0	1	0	-1	35.67	26.61
22	0	1	0	1	53.93	46.25
23	0	1	1	0	12.75	27.51
24	1	-1	0	0	86.97	86.87
25	1	0	-1	0	98.13	90.19
26	1	0	0	-1	36.90	46.78
27	1	0	0	1	74.61	88.28
28	1	0	1	0	76.67	62.70
29	1	1	0	0	65.12	63.58