Effect of operating parameters on reclamation of formic-acid wastewater by electrooxidation coupled with UV irradiation (UV/EO)

Treatment of formic acid wastewater by UV/EO can be highlighted below.

• UV/EO was more effective in removal of

insoluble COD, compared with the EO alone.

• UV/EO could decrease TDS via conversion of

chloride ions to chlorine.

• UV/EO performance highly depended on CD

and contact time, while effect of temperature

was minor.

• UV/EO performance was greatly enhanced

with higher CDs in non-filtrated waters,

compared with filtrated waters.

• Effluent from UV/EO treatment was high

potential for non-potable reuse. However, pH

and TDS should be monitored.

• BDD and titanium plates were robustness for

electro-oxidation.