| Title |
An innovative method to remove phenols from olive mill wastewater using heterogeneous modified polyacrylonitrile (PAN) catalyst |
| ID_Doc |
17843 |
| Authors |
Milnes, H; Huddersman, K; Matouq, M; Tiwary, A; Alayed, O; Kloub, N |
| Title |
An innovative method to remove phenols from olive mill wastewater using heterogeneous modified polyacrylonitrile (PAN) catalyst |
| Year |
2024 |
| Published |
|
| DOI |
10.2166/wst.2024.288 |
| Abstract |
Phenolic compounds contained in olive oil mill wastewater (OMW) cause environmental issues when left untreated. A novel heterogeneous surface functionalised nanocoated polyacrylonitrile (PAN) mesh used as a Fentons' catalyst acting with hydrogen peroxide gave 70-100% phenol reduction and an average total organic carbon (TOC) reduction of 64.7% when seven phenols as described below were individually treated (100 mg/L phenolic, 500 mg/L H2O2, 12 g catalyst, 20 degrees C). As a mixture of seven phenols (100 mg/L of each, 12 g catalyst, 3,500 mg/L H2O2), such as trans-cinnamic acid, p-coumaric acid, caffeic acid, vanillic acid, ferulic acid, tyrosol and hydroxytyrosol, there was 77.5% phenol and 43.9% TOC reduction. The addition of UVc light (100 mg/L phenolic, 500 mg/L H2O2, 12 g catalyst, 20 degrees C, UV flux 2.66 mW/cm(2)) significantly improved the degradation of the initial phenolic concentration by 98% in the individual treatments. A pH of 3 and a temperature of 30 degrees C were found to be the most effective and efficient. The fresh and regenerated catalysts were both recycled over 10 cycles before deactivation which shows promise for continuous flow and scale-up for use as an OMW treatment. |
| Author Keywords |
advanced oxidation process; Fenton; kinetics; photoFentons |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001296845400001 |
| WoS Category |
Engineering, Environmental; Environmental Sciences; Water Resources |
| Research Area |
Engineering; Environmental Sciences & Ecology; Water Resources |
| PDF |
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