Abstract
In the present study, colour removal and chemical oxygen demand removal from indigo dye wastewater have been evaluated using various coagulants/ flocculants. Laboratory-scale experiments were conducted using chemical coagulants-flocculants on synthetic as well as actual indigo dye wastewater and under ambient liquid temperature. Up to 99% colour removal was observed during treatment of synthetic indigo dye effluent with FeSO4, alum, polyelectrolyte and lime. Colour removal efficiencies of up to 97%, 97% and 95% were observed when denim plant wastewater (equalisation tank) was treated with alum, lime and FeSO 4 at dosages of 2, 2.5 and 2.5 g/l, respectively. Up to 95%, 94% and 87% colour removal efficiencies were observed when denim plant (dyebath) wastewater was treated with alum, lime and FeSO 4 at dosages of 225, 1000 and 225 mg/l, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 197-202 |
| Number of pages | 6 |
| Journal | Coloration Technology |
| Volume | 123 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 01-06-2007 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Chemistry (miscellaneous)
- Chemical Engineering(all)
- Materials Science (miscellaneous)