| Autor: |
Ramanan Mahadevan, Shanmugam Palanisamy, Prakadeeshraj Sakthivel |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Sustainable Chemistry for the Environment, Vol 4, Iss , Pp 100044- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2949-8392 |
| DOI: |
10.1016/j.scenv.2023.100044 |
| Popis: |
Dye (textile) wastewater constitutes of highly complex toxic substances including salts and organic compounds that are to be separated and purified in secondary or tertiary treatment in order to provide reusable water. In this context, oxidation processes are gaining attention in textile effluent treatment due to their high efficiency and less harmful (CO2, H2O and Metal hydroxides or sulfates) by-products. AOPs (Advance Oxidation Processes) are promoted and stabilized by the use of nanoparticles-based catalysts (metal oxides or carbonaceous nanomaterials) with high surface area, stability and other beneficial relevant properties. The efficiency, reusability and characteristics of various metal, metal oxides and carbonaceous catalytic materials in hydroxyl radical and PDS (peroxydisulfate)/PMS (peroxymonosulfate) related oxidation processes of wastewater treatment are discussed in this review. The related activation mechanisms of the hydroxyl and sulfate radicals have been also elaborated, along with the effect of oxidation parameters, such as pH and pollutant concentration. The maximum removal efficiency of organic pollutant can reach values of 96%, while applying the adsorptive bubble separation method, can reach as high as 99% removal efficiency. This review describes the merits and demerits of unsupported and supported nanoparticles that are involved in AOPs. This study represents in selecting better suitability of oxidation catalyst with good regenerability in various parameter like pH, pollutant concentration and capacity. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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