Abstract
Some agro-industries generate wastewaters with very high COD concentrations and require two-stage biological treatment. Inert or residual organic constituents of these wastewaters, even at very low ratios, play a major role in the compliance of effluent standards. In this study, two strong wastes, citric acid plant effluent and cheese whey were tested for their inert COD content. The experiments showed that the first-phase anaerobic treatment provided a major decrease in the residual COD, but introduced significant amounts of particulate residual COD to the second phase. A newly developed procedure was used for the assessment of the soluble and particulate residual COD.
| Original language | English |
|---|---|
| Pages (from-to) | 145-154 |
| Number of pages | 10 |
| Journal | Water Science and Technology |
| Volume | 28 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1993 |
| Externally published | Yes |
| Event | Proceedings of the 2nd IAWQ International Symposium on Waste Management Problems in Agro-Industries - Istanbul, Turk Duration: 23 Sept 1992 → 25 Sept 1992 |
Keywords
- Biological treatability
- Cheese whey
- Citric acid wastes
- Industrial wastewaters
- Initial inert soluble COD
- Residual particulate COD
- Residual soluble microbial products
- Strong wastes
