Sulphate radical-based advanced oxidation technologies for removal of COD and ammonia from hazardous landfill leachate: A review
| Autor: | Abbas Shomali, Behrooz Abbasi Souraki, Alireza Pendashteh, Moein Besharati Fard, Mehdi Zabihzadeh, Moeen Gholami |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Pollution Municipal solid waste Waste management Health Toxicology and Mutagenesis media_common.quotation_subject Water source Public Health Environmental and Occupational Health Soil Science Analytical Chemistry Ammonia chemistry.chemical_compound Nutrient chemistry Hazardous waste Environmental Chemistry Environmental science Organic matter Leachate Waste Management and Disposal Water Science and Technology media_common |
| Zdroj: | International Journal of Environmental Analytical Chemistry. :1-19 |
| ISSN: | 1029-0397 0306-7319 |
| DOI: | 10.1080/03067319.2021.1935915 |
| Popis: | Solid waste landfill (SWL) is known as a major pollution source contaminating air, water sources, and soil environment. The main hazard of SWL is leachate including high organic matter and nutrients. Recently, sulphate radical-based advanced oxidation processes (SR-AOPs) based on persulphate (PS) have been applied as a useful method for removal of chemical oxygen demand (COD) and ammonia from landfill leachate (LL). The removal efficiency of the SR-AOPs depends on effective parameters such as pH, oxidant dosage, catalyst dosage, temperature, reaction time, and so forth. Among SR-AOPs, thermal persulphate oxidation (TPO) seems to be promising for removal of both COD and ammonia; however, the high amount of energy cost is regarded as a major drawback. The drawbacks and future challenges for the use of SR-AOPs for LL have been discussed, and some strategies such as using coupled mechanisms of SR-AOPs have been proposed to tackle the common difficulties. Finally, the performance of SR-AOPs for treatment of LL has been compared with hydroxyl radical processes. |
| Databáze: | OpenAIRE |
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