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Nitrogen removal from landfill leachate using the SBR technology.
Hèctor Monclús1, Sebastià Puig, Marta Coma
1Laboratory of Chemical and Environmental Engineering (LEQUIA), Institute of Environment, University of Girona, Girona, Spain. hector@lequia.udg.cat
Environmental Technology
|May 15, 2009
Summary
Sequencing Batch Reactor (SBR) technology effectively treats landfill leachate, achieving 80% nitrogen removal. This study confirms SBR
Area of Science:
- Environmental Engineering
- Wastewater Treatment Technologies
- Nitrogen Removal Processes
Background:
- Landfill leachate poses significant environmental challenges due to its toxicity, high ammonium, and low biodegradability.
- Effective treatment is crucial to mitigate the impact of leachate on water bodies.
Purpose of the Study:
- To evaluate the reliability of Sequencing Batch Reactor (SBR) technology for treating landfill leachate.
- To assess the biological nitrogen removal efficiency of SBR under specific operational conditions.
Main Methods:
- A pilot-scale Sequencing Batch Reactor (SBR) was employed to treat urban landfill leachate.
- Operational conditions included a step-feed strategy and alternating anoxic-aerobic cycles.
Main Results:
- The SBR pilot plant successfully treated urban landfill leachate at a loading rate of 0.48 kg N x m(-3) d(-1).
- High nitrogen removal efficiencies, averaging 80%, were achieved.
Conclusions:
- Sequencing Batch Reactor (SBR) technology is a reliable method for biological nitrogen removal from landfill leachate.
- Optimized operational strategies, such as step-feeding and alternating anoxic-aerobic conditions, enhance treatment efficiency.
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