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Table 3

Comparison of EC/RSAC and other different EC systems for sulphate removal

Initial sulphate concentration (mg/L)Removal efficiency (%)Operational parametersReferences
2,650 40 Current density 180 A/m2, time 180 min, Fe-Fe electrodes Jo et al. (2016)  
54 59 Current density 47 mA/cm2, time 20 min, Fe-Al electrodes Murugananthan et al. (2004)  
13,000 28.9, 40.5 Current density 70 mA/cm2, time 120 min, Fe-Fe, Al-Al electrodes Nariyan et al. (2017)  
13,000 (1,600 mg/L after chemical precipitation) 84.4 Current density 25 mA/cm2, time 240 min, Fe-Al electrodes Nariyan et al. (2018)  
2,973.22 95.2 Current density 75 mA/cm2, time 19.2 min, Fe-Al electrodes, RSAC dosage 0.46 g/L Current work 
Initial sulphate concentration (mg/L)Removal efficiency (%)Operational parametersReferences
2,650 40 Current density 180 A/m2, time 180 min, Fe-Fe electrodes Jo et al. (2016)  
54 59 Current density 47 mA/cm2, time 20 min, Fe-Al electrodes Murugananthan et al. (2004)  
13,000 28.9, 40.5 Current density 70 mA/cm2, time 120 min, Fe-Fe, Al-Al electrodes Nariyan et al. (2017)  
13,000 (1,600 mg/L after chemical precipitation) 84.4 Current density 25 mA/cm2, time 240 min, Fe-Al electrodes Nariyan et al. (2018)  
2,973.22 95.2 Current density 75 mA/cm2, time 19.2 min, Fe-Al electrodes, RSAC dosage 0.46 g/L Current work 
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