Influência da compactação de um solo arenoso na infiltração e retenção de carga orgânica de chorume
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Data
2004-09-01
Autores
Hamada, Jorge [UNESP]
Calças, Daniela Augusta Nicolielo de Queiroz Pereira
Giacheti, Heraldo Luiz [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
ABES
Resumo
Neste estudo avaliou-se o transporte de líquidos e a atenuação da carga orgânica do chorume de aterro sanitário em um solo arenoso fino, compactado com diferentes graus de compactação. Para tanto foram construídas colunas de 1 m do solo compactado com 75 (natural), 80, 85, 90 e 95% do Proctor Normal, que foram alimentadas com água e com chorume, sob condições não saturadas. Foram verificadas reduções sensíveis na permeabilidade do chorume e na remoção de DQO para as colunas submetidas a graus de compactação igual ou superior a 85%. Os resultados desta pesquisa mostram o grande potencial de uso deste solo compactado, em bases de aterros sanitários de pequeno porte, para a retenção da carga orgânica de chorume.
Water and leachate flow and COD attenuation through a fine sandy soil at different compaction degree were assessed, based on column tests results. Each column was 1.0 m deep and 0.097 m in diameter, and the soil was compacted with 75 (natural), 80, 85, 90 and 95% of Standard Proctor Test, to receive water or sanitary landfill leachate under unsaturated conditions. During the experiment, COD removal and leachate permeability reduction were very significant for columns with 85% or higher compaction levels. The results show the high potential of this practice to install simple system in small sanitary landfills, for leachate organic loading retention.
Water and leachate flow and COD attenuation through a fine sandy soil at different compaction degree were assessed, based on column tests results. Each column was 1.0 m deep and 0.097 m in diameter, and the soil was compacted with 75 (natural), 80, 85, 90 and 95% of Standard Proctor Test, to receive water or sanitary landfill leachate under unsaturated conditions. During the experiment, COD removal and leachate permeability reduction were very significant for columns with 85% or higher compaction levels. The results show the high potential of this practice to install simple system in small sanitary landfills, for leachate organic loading retention.
Descrição
Palavras-chave
Percolação de chorume, solos arenosos, atenuação de carga orgânica, Leachate flow, sandy soils, organic loading attenuation
Como citar
Engenharia Sanitaria e Ambiental . ABES , v. 9, n. 3, p. 180-186, 2004.