Table 2. Summary of Electrode Alteration and Operational Performance.

	Electrode porosity
Parameter	Nonporous (solid)	Low (10 PPI)	Intermediate (50 PPI)	High (100 PPI)
Anode alteration	Evident pitting corrosion	Evident pitting corrosion	Evident pitting corrosion	Severe internal pore clogging
	Slight surface deposition	No pore clogging	Moderate surface deposition	Moderate surface deposition
		Structural instability
		Uniform usage of outer and inner pores.	Insignificant pore clogging	Moderate pore clogging
Cathode alteration	Slight surface deposition	Severe surface deposition	Moderate surface coverage	Severe surface coverage
		No pore clogging	Insignificant internal pore clogging	Severe internal pore clogging
Faradaic efficiency of iron dosing	As predicted (∼100%)	Super-Faradaic (>100%)	As predicted (∼100%)	Sub-Faradaic (<100%)
Energy consumption	Moderate	High	Low	Low
Overall performance	Moderate	Poor	Best	Moderate