Table 1.

Experimental Condition of Removal Efficiency of MB Using Design Expert.

Run	A: Time min	B: Temperature ℃	C: Initial Conc mg/L
1	95	60	300
2	10	42.5	300
3	95	60	20
4	10	25	160
5	95	42.5	160
6	95	42.5	160
7	180	42.5	300
8	10	42.5	20
9	95	42.5	160
10	180	60	160
11	95	42.5	160
12	180	42.5	20
13	180	25	160
14	95	25	20
15	95	25	300
16	95	42.5	160
17	10	60	160