Optimization of electrocoagulation process for fluoride removal: a blending approach using gypsum plaster rich wastewater

Table 1 Variable levels for design of experiments

Variable, Units		Levels
Variable, Units	-1	0	1
Time (A), min	20	40	60
Current density (B), A cm^− 2	0.0008	0.0044	0.008
Inter electrode distance (C), cm	1.2	3.2	5.2
GP rich wastewater volume (D), mL	100	300	500

ISSN: 2468-2039