Abstract
In this study, the effluent of an alcohol distillery after passing through a chemical treatment is characterized in terms of its inert COD fractions and the changes likely to be induced by two-stage biological treatment on the magnitude of these fractions are observed. The experimentally obtained results indicated that the anaerobic treatment gives lower soluble inert COD fractions than a corresponding aerobic treatment for the investigated wastewater. Therefore, the preference of anaerobic treatment instead of an aerobic one as the first stage is ascertained. The anaerobic first stage has a COD removal efficiency of 96%, whereas with a subsequent aerobic treatment 79% removal can be achieved on the basis of the stoichiometry of the inert COD. The anaerobic full-scale plant performance of 80% can be improved up to 96%.
| Original language | English |
|---|---|
| Pages (from-to) | 1329-1340 |
| Number of pages | 12 |
| Journal | Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering |
| Volume | 34 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1999 |
Keywords
- Alcohol distillery effluent
- Initial inert COD
- Residual microbial products
- Stong wastewaters
- Two-stage biological treatment
