Electrocoagulation and ozonation: a hybrid technique to treat colored effluents from the textile industry
This study evaluated the effectiveness of a hybrid treatment system of ozonation and electrocoagulation for removing color from textile wastewater. The hybrid treatment system was carried out in a semi-pilot scale and continuous flow, with real textile wastewater. Different ozonation and electrocoag...
Saved in:
| Published in: | Desalination and water treatment Vol. 204; pp. 107 - 113 |
|---|---|
| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier Inc
01-11-2020
|
| Subjects: | |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This study evaluated the effectiveness of a hybrid treatment system of ozonation and electrocoagulation for removing color from textile wastewater. The hybrid treatment system was carried out in a semi-pilot scale and continuous flow, with real textile wastewater. Different ozonation and electrocoagulation conditions were simultaneously evaluated in six experimental stages, combining ozone application rates of 0.0 and 13.6 mg/L with the electrical currents of 0.0, 15.8, 22.1 and 28.5 A. The hybrid treatment system had a color removal efficiency of 55.4% after the application of 3.45 g/L of iron and 0.27 g/L of ozone. The increase of electrical current did not increase color removal. Significant color removal efficiencies were only observed in the stages that simultaneously applied both electrocoagulation and ozonation, indicating a synergistic effect. Thus, continuous systems that combine ozonation and electrocoagulation are promising alternatives for future improvements in wastewater treatment from textile industries. |
|---|---|
| ISSN: | 1944-3986 |
| DOI: | 10.5004/dwt.2020.26284 |