Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual de Maringá
2019
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=303260200056 https://www.redalyc.org/journal/3032/303260200056/ https://www.redalyc.org/journal/3032/303260200056/html/ https://www.redalyc.org/journal/3032/303260200056/303260200056.epub https://www.redalyc.org/journal/3032/303260200056/movil https://doi.org/10.4025/actascitechnol.v41i1.41288 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Sourwater treatment by fenton process and its effect on phytotoxicity with Lactuca sativa Thiago Atsushi Takashina Célia Regina Granhen Tavares Marcos Rogério Mafra Monica Beatriz Kolicheski Luciana Igarashi-Mafra Ingeniería bioassays total phenols Petroleum effluent experimental design advanced oxidative process In this work, degradation of stripped sourwater by Fenton´s oxidation process was investigated by a central composite design and response surface methodology. The effects of initial concentrations of H2O2 and Fe2+ on the total phenols degradation was studied in a batch reactor. The optimum total phenols degradation was 92% achieved within an H2O2 concentration of 4.4 g L-1 and iron concentration of 162 mg L-1. The mathematical kinetic model adequately represented the experimental results. The results indicated that the Fenton oxidation rate (1/m) and removal efficiency (1/b) were more dependent on iron concentration than H2O2 concentration. After the Fenton process, the sourwater presented a seed germination rate (L. sativa) above 80%, indicating reduced phytotoxicity of the treated effluent. It was also observed that the H2O2 concentration significantly affected the inhibition concentration (IC50). 2019 artículo científico 1806-2563 https://www.redalyc.org/articulo.oa?id=303260200056 https://www.redalyc.org/journal/3032/303260200056/ https://www.redalyc.org/journal/3032/303260200056/html/ https://www.redalyc.org/journal/3032/303260200056/303260200056.epub https://www.redalyc.org/journal/3032/303260200056/movil https://doi.org/10.4025/actascitechnol.v41i1.41288 en http://www.redalyc.org/revista.oa?id=3032 Acta Scientiarum. Technology application/pdf Universidade Estadual de Maringá Acta Scientiarum. Technology (Brasil) Vol.41