Abstract
In this study characterization and biological treatability of tablet production wastewaters of a pharmaceutical industry were assessed. Source-based wastewater characterization of tablet, pastille, effervescent tablets and chewing tablet productions indicated variable strength of wastewaters with COD values between 1030 and 6700 mg/L. Biological treatability studies conducted on these wastewaters showed that the wastewater having BOD/COD ratios above 0.4 could be effectively treated using activated sludge process at 0.21-0.25 g COD/(g VSS d) organic loading. One of the tablet production wastewaters was found to be practically non-biodegradable. Ozonation of this wastewater yielded a limited increase in biodegradability. 60% COD removal could be obtained by biological treatability experiments at organic loadings of 0.06 to 0.1 g COD/(g VSS d) using composite samples prepared as a mixture of ozonized and non-ozonized tablet wastewaters.
| Original language | English |
|---|---|
| Pages (from-to) | 626-632 |
| Number of pages | 7 |
| Journal | Fresenius Environmental Bulletin |
| Volume | 28 |
| Issue number | 2 |
| Publication status | Published - 2019 |
Bibliographical note
Publisher Copyright:© 2019 Parlar Scientific Publications. All rights reserved.
Keywords
- Biological treatment
- Ozonation
- Pharmaceutical industry
- Source-based characterization
- Tablet production wastewater
