Effect of Sulfate and Redox Mediator on Reduction of AO7 in Upflow Anaerobic Filter (UAF)

Abstract:

Azo compounds constitute the largest and the most diverse group of synthetic dyes and are widely used. The release of coloured wastewaters represents a serious environmental problem and a public health concern. The aim of this study was to investigate the impact of sulfate and redox mediator on the reduction of an azo dye (Acid orange 7, AO7) by anaerobic sludge. The kinetics showed the AO7 reduction rate can be greatly improved by the addition of sulfate and RF, thus it is possible to speed up the start-up of AO7 reduction system under appropriate condition.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 584-589
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.584
• Online since: February 2014
• Authors: Li Han, Yue Wen*, Ning Ding, Qi Zhou
• Keywords: AO7 Reduction, Redox Mediator, Sulfate, Upflow Anaerobic Filter (UAF)

References

[1] Frank P. van der Zee, Iemke A.E. Bisschopsa, Valérie G. Blanchard, Renske H.M. Bouwman, Gatze Lettinga and Jim A. Field, The contribution of biotic and abiotic processes during azo dye reduction in anaerobic sludge, Water Research 37(2003).

DOI: 10.1016/s0043-1354(03)00166-0

[2] Anjali Pandey, Poonam Singh and Leela Iyengar, Bacterial decolorization and degradaton of azo dyes, International Biodeterioration & Biodegradation 59(2007) 73-84.

DOI: 10.1016/j.ibiod.2006.08.006

[3] André B. dos Santos, Marta P. de Madrid, Frank A.M. de Bok , Alfons J.M. Stams, Jules B. van Lier and Francisco J. Cervantes, The contribution of fermentative bacteria and methanogenic archaea to azo dye reduction by a thermophilic anaerobic consortium, Enzyme and Microbial Technology 39(2006).

DOI: 10.1016/j.enzmictec.2005.09.003

[4] André B. dos Santos, Francisco J. Cervantes and Jules B. van Lier, Review paper on current technologies for decolourisation of textile wastewaters: Perspectives for anaerobic biotechnology, Bioresource Technology 98 (2007) 2369-2385.

DOI: 10.1016/j.biortech.2006.11.013

[5] Paulo Igor M. Firmino, Marcos Erick R. da Silva, Francisco J. Cervantes and André B. dos Santosa, Colour removal of dyes from synthetic and real textile wastewaters in one- and two-stage anaerobic systems, Bioresource Technology 101(2010).

DOI: 10.1016/j.biortech.2010.05.050

[6] Cervantes F.J., Enriquez J.E., Mendoza-Hernandez M.R., Razo-Flores E. and Field J.A., The role of sulphate reduction on the reductive decolorization of the azo dye reactive orange 14, Water Science & Technology 54(2006) 171–177.

DOI: 10.2166/wst.2006.501

[7] Albuquerque M.G.E., Lopes A. T, Serralheiro M. L, Novaisa J. M and Pinheiroa H.M., Biological sulphate reduction and redox mediator effects on azo dye decolourisation in anaerobic-aerobic sequencing batch reactors, Enzyme and Microbial Technology 36 (2005).

DOI: 10.1016/j.enzmictec.2005.01.005

[8] González-Gutiérrez L.V., Jiménez-Islas H. and Escamilla-Silva E.M., Dynamic transport and reaction model for azo dye removal in a UAFB reactor, Process Biochemistry 45(2010) 30-38.

DOI: 10.1016/j.procbio.2009.07.018

[9] Cervantes F. J., Enriquez J. E. and Galindo-Petatan E., Biogenic sulphide plays a major role on the riboflavin-mediated decolourisation of azo dyes under sulfate-reducing conditions, Chemosphere 68(2007) 1082-1089.

DOI: 10.1016/j.chemosphere.2007.01.071

[10] Lin S., Wang Y. and Yen C., Kinetic theory of biostimulation for azo dye decolorization using immobilized cell system, Journal of the Taiwan Institute of Chemical Engineers 43(2012) 399-408.

DOI: 10.1016/j.jtice.2011.11.004

[11] Guo J., Zhou J. and Wang D., Biocalalyst effects of immobilized anthraquinone on the anaerobic reduction of azo dyes by the salt-tolerant bacteria, Water Research 41(2007) 426-432.

DOI: 10.1016/j.watres.2006.10.022

[12] Ding N., Huang J., Wen Y. and Zhou Q., Comparison of different types of redox mediators on the chemical reduction of azo dye by sulfide, Advanced Materials Research 518-523 (2012) 289-294.

DOI: 10.4028/www.scientific.net/amr.518-523.289