Boron Removal from Mining and Synthetic Effluents by Electrocoagulation Using Aluminum Electrodes

Table 4

Energy and operational costs for EC, for the synthetic effluent, performed for 30, 60, 90, and 120 minutes, current density of 14.42 mA cm⁻² and supporting electrolyte 0.200 mol L⁻¹, and for the mining effluent with a current density of 14.42 mA cm⁻², for 90 minutes and supporting electrolyte 0.400 mol L⁻¹.

Effluent	Time (min)	Energy cost (US$)	Operational cost (US$)
Synthetic	30	0.00060	0.187
Synthetic	60	0.00120	0.191
Synthetic	90	0.00167	0.196
Synthetic	120	0.00244	0.200
Mining	90	0.00050	0.245