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Ultrafiltration as treatment process for reuse of dairy effluent

The work aimed to test two different pore size ultrafiltration membranes (a spiral wound PES membrane, cut off 5-8 kDa; and another, a tubular PVDF membrane, cut off 30-80 kDa) to nutrients recovery from dairy effluents, looking up to evaluate the flux behavior and the pollution control parameters removal. The results have shown that COD removal is nearby 75%; however, proteins separation is near 97% and fats removal is in a range 91% - 93%. The fluxes were 18 kg m-1 h-1 for spiral wound membrane and 50 kg m-2 h-1 for tubular membrane. The process has shown latter studies could became possible the both nutrients reuse on dairy products.

Dairy; ultrafiltration; membrane; effluent; milk; reuse


Associação Brasileira de Engenharia Sanitária e Ambiental - ABES Av. Beira Mar, 216 - 13º Andar - Castelo, 20021-060 Rio de Janeiro - RJ - Brasil - Rio de Janeiro - RJ - Brazil
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