Removal of heavy metals derived from COD analysis wastewater by electrolysis using graphite electrode
| Autor: | Thi Thanh Diem Ngo, Minh Tien Tran |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Vietnam Journal of Science, Technology and Engineering, Vol 63, Iss 3 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2525-2461 2615-9937 |
| DOI: | 10.31276/VJSTE.63(3).85-91 |
| Popis: | In this study, electrolysis using graphite electrodes was applied to treat wastewater generated from a COD analysis procedure (referred to as COD wastewater). COD wastewater containing high concentrations of H2SO4, Hg2+, and Cr2O72- salts were collected and then treated by electrolysis with graphite electrodes in a labscale experiment. The results showed that the electrolysis process was not affected by the electrode’s distance or area. The most efficient treatment for all three metals was achieved at a current value of 31.58 mA, which corresponds to a current density of 1.974 mA/cm2 under a voltage of 3 V, 8-h electrolysis time, wastewater pH |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|