Abstract
The aim of this study was to evaluate the suitability to couple anammox process with advanced oxidation processes (AOPs) to treat mature landfill leachate with high nitrogen and non-biodegradable organic matter concentrations (2309±96mgN-TNL-1 and 6200±566mgCODL-1). The combination of a partial nitiration-anammox system coupled with two AOP-based technologies (coagulation/flocculation+ozonation and photo-Fenton) was assessed in terms of nitrogen and carbon removal. Total nitrogen removal efficiency within a range of 87-89% was obtained with both configurations without the need of any external carbon source. The COD removal efficiencies attained were 91% with coagulation/flocculation+ozonation and 98% with photo-Fenton. Applying the biological treatment prior to advanced oxidation processes-based technologies reduced the quantity of needed reagents giving attaining higher removal efficiencies. From a basic economical point of view and taking into account the results of this study, the combination of partial nitritation-anammox system with photo-Fenton treatment was more favorable than with coagulation/flocculation+ozonation treatment.
| Original language | English |
|---|---|
| Pages (from-to) | 27-34 |
| Number of pages | 8 |
| Journal | Journal of Hazardous Materials |
| Volume | 258-259 |
| DOIs | |
| Publication status | Published - 15 Aug 2013 |
| Externally published | Yes |
Keywords
- Anaerobic ammonia oxidation (anammox)
- Leachate
- Ozonation
- Partial nitritation
- Photo-Fenton
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