Removal of Manganese from Toa Vaca Reservoir Raw Water using Electrocoagulation

Abstract

Abstract - The aim of this study was to investigate the efficiency of this technique in manganese removal from the raw water at the Toa Vaca Filter Plant. Preliminary runs with different electrode materials were performed in order to determine and select the best electrode pair / configuration for manganese removal. The effect of parameters such as processing time and charge loading were investigated for the remaining stages of this study using an aluminum / aluminum electrode pair which was the combination that gave the highest manganese removal (82.88 %) during preliminary stage. Results revealed that manganese removal efficiency increases with processing time and applied charge loading although voltage may also affect the electrocoagulation process. In addition, water turbidity was also impacted positively obtaining removal up to 92.89 %. Considering the obtained efficiency in the present study, electrocoagulation technique may be suggested as an effective alternative technique in manganese removal. Key Terms - Charge Density, Electrode, Electrocoagulation. Manganese.