Filtração lenta em areia, manta não tecida e carvão ativado como pós-tratamento de efluentes domesticos e reuso / Slow sand filtration with non woven syxthetic fabric and activated carbon as after treatment of domestic sewer effluent and reuse

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The slow sand filtration is a viable economic alternative for small communities moved away from the great urban centers. This work evaluated the efficiency of a slow filter with sand layer, activated carbon and non-woven synthetic fabric, compared with a slow filter of sand and non-woven synthetic fabric to treat constructed wetland effluent. The results had shown the removal of 74,6% of total coliforms for the slow sand filter with activated carbon and 57.6% for the slow sand filter without activated carbon. The solid reduction was 36,2% for the filter with activated carbon and 26.2% for the filter without activated carbon. For the turbidity, the reduction of 43,2% for the filter with activated carbon against 33,2% for the filter without activated carbon, and for color the filter with activated carbon got 39.3% of efficiency against 26,0% for the filter without activated carbon. Due to simplicity of construction and operation, the slow sand filter with activated carbon, sand and non-woven synthetic fabric can be applied for treatment of domestic sewer in small communities and can be used to improve the quality of an effluent to be launched in water or use this simple technology to water treatment and water reuse

ASSUNTO(S)

carbono ativado aguas residuais - purificação - filtração activated carbon aguas residuais agua - reutilização water reuse slow sand filtration

ACESSO AO ARTIGO

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