Szukana fraza: [Abstract = "The results show that the sludge, were subjected to 24 hours of degassed prior to the application of coagulant characterized by a greater susceptibility to dewatering, than sludge which have undergone 24 hours of flocculation with coagulant. The use of the dual conditioning methods allowed halve the doses of polyelectrolyte, compared with the doses used in practice in sewage treatment plants."]

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