Abstract
A dispersed-ozone flotation (DOF) separator was devised for a pilot study of tertiary wastewater treatment for re-use purposes. As a compact device combining coagulation, ozonation and flotation in an integrated unit, the DOF separator achieved a very high removal of SS, TOC, UV254 and colour, as well as effective inactivation of coliform and total bacteria within a short hydraulic retention time of 30 min. The finished water quality is comparable to or better than that by a conventional tertiary treatment process using coagulation, sedimentation, filtration and chlorine disinfection, and meets the quality standards for non-drinkable domestic reuse.
| Original language | English |
|---|---|
| Pages (from-to) | 151-157 |
| Number of pages | 7 |
| Journal | Water Science and Technology |
| Volume | 53 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2006 |
| Externally published | Yes |
Keywords
- Dispersed-ozone flotation
- Tertiary treatment
- Water reuse