This work reports the results of experimental work to evaluate the effect of current density (C_j), initial pH, salt dose, distance between electrodes (ID) and initial Cr(VI) concentration (C_i) for efficient removal of Cr(VI) from wastewater using batch electrocoagulation (EC). Experimental results show that Fe/Fe electrode combination with initial pH of 4.0, C_j of 43.103 A m⁻², ID of 1.0 cm and NaCl dose of 0.33 g L⁻¹(conductivity: 912 µS cm⁻¹) are desirable operating parameters to reduce Cr(VI) contamination of wastewater from 40 mg L⁻¹ to below 0.05 mg L⁻¹ after 60 min of EC. Kinetic analysis for Cr(VI) removal by EC follows first-order kinetic model. Sludge generated from the EC bath was characterized using FESEM and EDX analysis. Further, estimated energy consumption for EC was calculated as 1.78 kWh m⁻³ with electrode utilization of 0.0057 kg m⁻³ and operational cost of 0.1517 US$ m⁻³.

这项工作报告了实验工作的结果，以评估电流密度（C _j），初始pH值，盐剂量，电极之间的距离（ID）和初始Cr（VI）浓度（C _i）的影响，以有效去除Cr（VI） ），并使用分批电凝（EC）从废水中提取。实验结果表明，初始pH为4.0，C _j为43.103 A m ^-2，ID为1.0 cm和NaCl剂量为0.33 g L ^-1（电导率：912 µS cm ^-1）的Fe / Fe电极组合是理想的操作参数将废水中的Cr（VI）污染从40 mg L ^-1降低到0.05 mg L ^-1以下EC 60分钟后。通过EC去除Cr（VI）的动力学分析遵循一阶动力学模型。使用FESEM和EDX分析对EC浴产生的污泥进行表征。此外，EC的估计能耗为1.78 kWh m ^-3，电极利用率为0.0057 kg m ^-3，运行成本为0.1517 US $ m ^-3。