%0 Journal Article %T Concep£¿£¿o e avalia£¿£¿o de uma unidade de peneiramento for£¿ado para a redu£¿£¿o do tamanho de part¨ªculas presentes no esgoto bruto dom¨¦stico %A Teixeira %A Ana Raquel %A Chernicharo %A Carlos Augusto de Lemos %J Engenharia Sanitaria e Ambiental %D 2009 %I Brazilian Association of Sanitary and Environmental Engineering %R 10.1590/S1413-41522009000300004 %X the work focused on the conception and test of a forced sieving unit, used for the pre-treatment of raw sewage aiming at the reduction of organic matter particle size. the pre-treatment unit involved the use of a metallic sieve (1 mm cut-off) assembled inside the pipeline through which the influent sewage was pumped. the results indicated that the forced sieving resulted in a higher concentration of particles with range diameter between 1.8 and 30 ¦Ìm, without the retention of particulate material. however, the forced sieving unit did not influence the reduction/retention of codtotal of the raw sewage. %K pre-treatment %K forced sieving %K particles size distribution %K domestic sewage. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1413-41522009000300004&lng=en&nrm=iso&tlng=en