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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Fenton's reagent as coagulant agent on removing humic substances from water through dissolved air flotation and filtration

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Author(s):
Marcelo De Julio ; Eduardo Fausto de Almeida Neves ; Julio Cesar Trofino ; Luiz Di Bernardo
Total Authors: 4
Document type: Journal article
Source: Engenharia Sanitária e Ambiental; v. 11, n. 3, p. -, Set. 2006.
Abstract

Fenton's reagent was used as coagulant agent to treat water with high true color (100 ± 5 HU) caused by the introduction of humic substances extracted from peat, using dissolved air flotation. The pair value of coagulant dosage x coagulation pH was optimized to posterior construction of coagulation diagrams, reaching apparent color removal efficiency slightly superior to 60%. It was tried to simulate a treatment with complete cycle, carrying out an experiment with sand filtration after flotation, obtaining an effluent with excellent quality, presenting remnant apparent color, turbidity and absorbance of 253.7 nm less or equal to 2 HU, 0.40 TU and 0.009 cm-1, respectively, and residual total iron< 0.005 mg/L and DOC < 0.001 mg/L. (AU)