TY - JOUR

T1 - Influence of variables of the combined coagulation–Fenton-sedimentation process in the treatment of trifluraline effluent

AU - Martins, Ayrton F

AU - Vasconcelos, Tibiriça G.

AU - Wilde, Marcelo Luis

N1 - Funding Information: The present study was carried out with the support of the Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq, Brazil.

PY - 2005/12/9

Y1 - 2005/12/9

N2 - The effluent stream from the industrial production of the herbicide trifluraline (amination water) was submitted to a combined treatment of a physical–chemical process (coagulation) with an advanced oxidation process (Fenton). The recovering of the residual sludge was performed. The combined coagulation–Fenton-sedimentation process proved to be very suitable for wastewater color reduction (91.6%), promoting considerable abatement of the organic load (63.4% COD reduction). According to the fractionary factorial design, the main effects of pH (A) and Fenton sludge (B) variables were considered statistical fluctuations of the process (and not decisive), while the main effects of Fe3+ (C), Fe2+ (D) and H2O2 (E), as well as the interactions between variables A and B, A and E, C and D and C and E were considered significant. The obtained results suggest that the combined process can be advantageous for the treatment of recalcitrant industrial effluents, such as the amination water from the trifluraline production.

AB - The effluent stream from the industrial production of the herbicide trifluraline (amination water) was submitted to a combined treatment of a physical–chemical process (coagulation) with an advanced oxidation process (Fenton). The recovering of the residual sludge was performed. The combined coagulation–Fenton-sedimentation process proved to be very suitable for wastewater color reduction (91.6%), promoting considerable abatement of the organic load (63.4% COD reduction). According to the fractionary factorial design, the main effects of pH (A) and Fenton sludge (B) variables were considered statistical fluctuations of the process (and not decisive), while the main effects of Fe3+ (C), Fe2+ (D) and H2O2 (E), as well as the interactions between variables A and B, A and E, C and D and C and E were considered significant. The obtained results suggest that the combined process can be advantageous for the treatment of recalcitrant industrial effluents, such as the amination water from the trifluraline production.

KW - Chemistry

KW - Recovery of Fenton sludge

KW - Coagulation

KW - Sedimentation

UR - http://www.scopus.com/inward/record.url?scp=28344446375&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/b56c3a34-eda4-30ba-ac67-fec596ea525b/

U2 - 10.1016/j.jhazmat.2005.06.028

DO - 10.1016/j.jhazmat.2005.06.028

M3 - Journal articles

C2 - 16084015

VL - 127

SP - 111

EP - 119

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 1873-3336

IS - 1-3

ER -