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abstract:
In this work, the effectiveness and applicability of a physicochemical
coagulation/flocculation process for the pretreatment of textile industry
discharges containing textile dye Hydron Blue (HB) by using Al2(SO4)3 as
destabilizing agent was studied. The coagulation/flocculation performance on
the quality of treated water was measured by UV absorbance at different
wavelengths, by Scanning Electron Microscopy (SEM) and Fourier Transform
infrared Spectroscopy. Results showed that the process was effective with a
maximum yield of 77 % under optimized conditions of pH, coagulant dosage,
concentration of initial solutions, and stirring speed. The optimization of
this process by a design of experiments allowed us to construct models with
an R2 value of 0.99 for the coagulation/flocculation in the chosen field. |
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