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BIDONE, R.F. (2007). Sanitary landfill leachate treatment for a system composed by upflow anaerobic filters followed by constructed wetlands: Case study — Recreio Central Waste, in Minas do Leão/RS. M.Sc. Dissertation. School of Engineering at San Carlos, University of Sao Paulo, San Carlos, Brazil. This study discussed the sanitary landfill leachate treatment in a full scale system composed by two upflow anaerobic filters followed by two constructed wetlands. The research was developed at the Landfill Leachate Treatment Station owned by Recreio Central Waste, located in Minas do Leão/RS. The objective of the study was to verify the efficiency of the system in the removal of organic matter and ammonia nitrogen. The Phase 1 of the study, which evaluated the performance of anaerobic filters when operated in series, indicated that almost all of the removal of organic matter readily biodegradable occurred in the first filter, showing that, for the treatment of leachate concerned, it is not interesting the use of two similar upflow anaerobic filters in series. The Phase 2 assessed the performance of the anaerobic filters, operated in parallel, and the constructed wetlands. It could be concluded that: upflow anaerobic filters are excellent alternative for the sanitary landfill leachate treatment, as they may facilitate removal of organic matter greater than 50%; constructed wetlands represent an interesting eco-technology to complement the leachate treatment, which can enable high removals of N-ammonia.

Tratamento de lixiviado de aterro sanitário por um sistema composto por filtros anaeróbios seguidos de banhados construídos: estudo de caso - Central de Resíduos do Recreio, em Minas do Leão/RS