Heterogeneous Photocatalytic Degradation of Dairy Wastewater Using Immobilized ZnO

Table 2

Taguchi's L₈ orthogonal design for the experimental model of photocatalyst treatment of dairy wastewater.

Exp.	A; Reaction time	B; Thickness ZnO	C; Interaction AB	D; pH	E; Interaction AD	F; Interaction BD	G; Effluent concentration
1	1	1	1	1	1	1	1
2	1	1	1	2	2	2	2
3	1	2	2	1	1	2	2
4	1	2	2	2	2	1	1
5	2	1	2	1	2	1	2
6	2	1	2	2	1	2	1
7	2	2	1	1	2	2	1
8	2	2	1	2	1	1	2