| Title |
Electro-Fenton process for implementation of acid black liquor waste treatment |
| ID_Doc |
9154 |
| Authors |
Buftia, G; Rosales, E; Pazos, M; Lazar, G; Sanromán, MA |
| Title |
Electro-Fenton process for implementation of acid black liquor waste treatment |
| Year |
2018 |
| Published |
|
| DOI |
10.1016/j.scitotenv.2018.04.139 |
| Abstract |
In this work, an eco-friendly solution for the remediation of wastewater generated in the lignin recovery process from eco-industrial paper mill has been proposed in their way towards a more circular economy strategy. Thus, the application of the electro-Fenton process for the degradation of the non-recovered lignin and other organic compounds form a scarcely studied acid black liquor waste (ABLW) was successfully performed. This treatment was able to operate in a range of COD loads (0.5-19.5 mg O-2 center dot L-1) showing high degradation values of the ABLW determined by the abatement of color, total phenolic content and COD. Then, the optimization of the working conditions for the design of a sustainable treatment system with optimum efficiency was carried out using a response surface methodology. The experiment carried out in the calculated optimal conditions for the electro-Fenton degradation process (current intensity 132.5 mA, catalyst dosage of 0.10 mM, and temperature 40 degrees C) showed a COD removal of 74.82% and current efficiency 7779%, close to the theoretical value predicted by the model 73.12% and 77.06%, respectively. In addition, the identification of the final products permitted to confirm the mineralization efficiency. (C) 2018 Elsevier B.V. All rights reserved. |
| Author Keywords |
Degradation; Electro-Fenton; Lignin wastewater; Black liquor; Response surface methodology; Optimization |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000436494400039 |
| WoS Category |
Environmental Sciences |
| Research Area |
Environmental Sciences & Ecology |
| PDF |
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