Natural chelating agents from olive mill wastewater to enable photo-Fenton-like reactions at natural pH
| Autor: | Isabel Oller, Ana Ruiz-Delgado, Melina Roccamante, Sixto Malato, Ana Agüera |
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| Rok vydání: | 2019 |
| Předmět: |
02 engineering and technology
General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences Pentachlorophenol chemistry.chemical_compound Pilot plant Wastewater chemistry Polyphenol Environmental chemistry Degradation (geology) Chelation Phenols 0210 nano-technology |
| Zdroj: | Catalysis Today. 328:281-285 |
| ISSN: | 0920-5861 |
| DOI: | 10.1016/j.cattod.2018.10.051 |
| Popis: | The potential of polyphenols, present in olive mill wastewater (OMW), to act as iron chelators in photo-Fenton reaction without water acidification for the treatment of different microcontaminants in water has been studied. OMW containing 6.3 g/L of phenols has been dosed from 1:100 to 1:1500 in water containing 200 μg/L of terbutryn, chlorfenvinphos, pentachlorophenol and diclofenac. Experiments were performed in compound parabolic collector (CPC) solar pilot plant installed in Plataforma Solar de Almeria using Fe 0.1 mM and H2O2 50 mg L−1. The total irradiated area was 3.08 m2 and the total volume 39 L. Results indicated that iron was forming a stable complex with components of OMW along different pH values. > 90% degradation of the four microcontaminants was achieved with solar photo-Fenton at circumnetutral pH adding OMW 1:1200 for keeping iron in solution, allowing to operate a photo-Fenton process without acidifying wastewater. It leads to an alternative to using artificial-synthetic iron-complexing ligands. |
| Databáze: | OpenAIRE |
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