Filtração lenta para o tratamento de águas para pequenas comunidades rurais
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Data
2012-06
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Editor
Ricardo Prado Abreu Reis
Resumo
This work had as objective the construction and the evaluation of a slow filter
in scale laboratorial used sands and non‐woven synthetic fabrics seeking the water
treatment for rural communities small using for this, simple materials and of low cost. The
slow filter was built using a cylindrical tube of PVC (polyvinyl chloride) height of 1000 mm,
diameter of 150 mm. The thickness of the filtering material was constituted of a sand 400
mm layer ollowed by breaks 100 mm. Among the described layers and in the top nonwoven
synthetic fabrics were used with 400 g/m2 grammage. The filtration rate adopted
during the experiments it was of 3m3/m2.dia. In the slow filter efficiency evaluation the
following parameters were used: color, pH, turbidity, total phenols and consumed oxygen
(CO) seeking the monitoring of the water of a pond inside of the Campus‐ Center of
Agrarian Sciences (CCA‐UFSCAR). The principal found results were: pH value 7,0 ±0,07,
90% of turbidity reduction, 50% of coloration reduction, 50% of organic matter reduction
and it was not detected concentrations of phenols. In agreement with the accomplished
analyses, in the period of four months, it was evidenced that the sample in study shows in
good conditions, getting to accomplish the important minerals cycle and slow filter built
demonstrates efficiency in the polishing of the pond in study.
Descrição
Palavras-chave
Filtração lenta, Tratamento de água, Filtro de areia, Slow filtration, Water treatment, Sand filter
Citação
NASCIMENTO, Ana Paula do; PELEGRINI, Ronaldo Teixeira; BRITO, Núbia Natália de. Filtração lenta para o tratamento de águas para pequenas comunidades rurais. Revista Eletrônica de Engenharia Civil, Goiânia, v. 2, n. 4, abr./jun. 2012. Disponível em: <https://www.revistas.ufg.br/reec/article/view/19705/11528>.