Combination of Coagulation–Flocculation–Decantation and Ozonation Processes for Winery Wastewater Treatment
Bibliographic Data
| ID | 15483754 |
|---|---|
| Authors | Nuno Jorge (0000-0002-3410-2959, University of Trás-os-Montes and Alto Douro), Ana R Teixeira (0009-0009-2243-9376, University of Trás-os-Montes and Alto Douro), Carlos Matos (0000-0001-5574-5411, University of Trás-os-Montes and Alto Douro), Marco S Lucas (0000-0002-5463-0505, University of Trás-os-Montes and Alto Douro), José A Peres (0000-0001-7417-9152, University of Trás-os-Montes and Alto Douro, corresponding author) |
| Year | 2021 |
| Volume | 18 |
| Issue | 16 |
| Pages | 8882-8882 |
| Publication date | 2021-08-23 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph18168882 |
| PMID | 34444631 |
| OpenAlex | W3193875596 |
| Language | EN |
| Citations received | 3 |
| References cited | 3 |
This research assessed a novel treatment process of winery wastewater, through the application of a chemical-based process aiming to decrease the high organic carbon content, which represents a difficulty for wastewater treatment plants and a public health problem. Firstly, a coagulation-flocculation-decantation process (CFD process) was optimized by a simplex lattice design. Afterwards, the efficiency of a UV-C/ferrous iron/ozone system was assessed for organic carbon removal in winery wastewater. This system was applied alone and in combination with the CFD process (as a pre- and post-treatment). The coagulation-flocculation-decantation process, with a mixture of 0.48 g/L potassium caseinate and 0.52 g/L bentonite at pH 4.0, achieved 98.3, 97.6, and 87.8% removals of turbidity, total suspended solids, and total polyphenols, respectively. For the ozonation process, the required pH and ferrous iron concentration (Fe 2+ ) were crucial variables in treatment optimization. With the application of the best operational conditions (pH = 4.0, [Fe 2+ ] = 1.0 mM), the UV-C/ferrous iron/ozone system achieved 63.2% total organic carbon (TOC) removal and an energy consumption of 1843 kWh∙m -3 ∙order -1 . The combination of CFD and ozonation processes increased the TOC removal to 66.1 and 65.5%, respectively, for the ozone/ferrous iron/UV-C/CFD and CFD/ozone/ferrous iron/UV-C systems. In addition, the germination index of several seeds was assessed and excellent values (>80%) were observed, which revealed the reduction in phytotoxicity. In conclusion, the combination of CFD and UV-C/ferrous iron/ozone processes is efficient for WW treatment
Ferrous · Flocculation · Ozone · Pulp and paper industry · Turbidity · Wastewater · Winery · Advanced oxidation water treatment · Chemistry · Environmental Science · Wastewater Treatment and Reuse · Water Treatment and Disinfection · Environmental Engineering · Food Science · Organic Chemistry
| Unique citing works | 3 |
|---|---|
| Citations per year | 0.75 |
| Citation span | 2022 - 2023 (2) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 3 |