Produção Nacional
Revisado por pares
Post-treatment of stabilized landfill leachate by upflow gravel filtration and granular activated carbon adsorption
2020; Taylor & Francis; Volume: 42; Issue: 26 Linguagem: Inglês
10.1080/09593330.2020.1746838
ISSN1479-487X
AutoresRenan Borelli Galvão, Andressa Algayer da Silva Moretti, Fernando Fernandes, Emília Kiyomi Kuroda,
Tópico(s)Environmental remediation with nanomaterials
ResumoStabilized leachates from sanitary landfills generally display high levels of recalcitrant organic matter, sometimes requiring a combination of biological and physicochemical treatment processes. This study evaluated the post-treatment by Upflow Gravel Filtration (UGF) followed by Granular Activated Carbon Adsorption (GACA) on a pilot scale of two different landfill leachates previously treated by biological processes. The system design was proven technically feasible for a continuous flow post-treatment in relation to recalcitrant organic matter removal efficiency. The UGF experiments presented 83.9% and 82.0% COD removals for leachates A and B, respectively, with residual values of 107 and 194 mg L-1. The UGF-GACA experiments, in turn, produced effluents with residual COD values of 67 and 94.6% efficiencies.
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