A Dual Cathode Electro Fe²⁺/S₂O8^2- System Used for Pickle Sauerkraut Wastewater Degradation

Abstract:

Using novel dual cathode/electro/Fe²⁺/S₂O₈^2- system to treat pickle sauerkraut wastewater, the paper investigates the influencing factors (S₂O₈^2- dosage, Fe^{2 +} dosage, current density, Wastewater pH, electrode plate distance) of the organic matters removal and the treatment effect. Test results show that the degree of various factors influence on COD removal of sauerkraut wastewater is different. The COD removal is little effected by pH, while largely effected by current density, dosage of Fe^{2 +} and S₂O₈^2- dosage. Under the optimum experiment conditions, current density for 30mA/cm^-2, dosage of Fe^{2 +} for 8mmol/L, S₂O₈^2- dosage for 12 mmol/L, electrode plate distance for 2 cm and pH=6, sixty minutes electrolysis, wastewater removal rate reach up to 92.6%. These results suggest that this electrochemical oxidation process by dual cathode/electro-Fe²⁺-S₂O₈^2- system might provide an alternative for the degradation of pickle sauerkraut wastewater.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 924-928
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.924
• Online since: December 2014
• Authors: Shu Yun Shi, Hong Hui Teng
• Keywords: COD Degradation, Dual Cathode, Electrode Fe²⁺/S₂O8^2-System, Pickle Sauerkraut Wastewater

References

[1] E. Guivarch, N. Oturan. Environ Chem Lett, Vol. 1(2003), p.165.

[2] S. Khoufi, F. Aloui. Water Research, Vol. 40 (2007), p. (2016).

[3] Y.O. Zhang, X. Z. Du, Huang W L. Chines Chemical Lets, Vol. 22(2011), p.358.

[4] C. J. Liang, H. W. Su. Ind Eng Chem Res, Vol. 48 (2009), p.5558.

[5] C. J. Liang, Wang Z S, C. J. Bruell. Chemosphere, Vol. 66(2007), p.106.

[6] K.C. Huang, R. A. Couttenye, G.E. Hoag. Chemosphere, Vol. 49(2002), p.413.

[7] F. Gosetti, M. Bottaro, V. Gianotti, et al. Environ Pollu, Vol. 158 (2010), p.592.

[8] R. H. Waldemer, P. G. Tratnyek, R. L. Johnson, et al. Environ Sci Technol, Vol. 41(2007), p.1010.

[9] Y. F. Wang, C. M. Fan. Z. H. Liang. Water treat technol, Vol. 131(2005), p.23.

[10] F. T. Chen, S. C. Yu, X. P. Dong. J Hazard Mater, Vol. 227-228 (2012), p.474.

[11] J. Wu, H. Zhang, J. J. Qiu. J Hazard Mater, Vol. 215-216 (2012), p.138.

[12] Y. Y. Chu, W. Y. Wang, M. J. J. Wang. J Hazard Mater, 2010, p.247.

[13] Y. Y Chu, Y. Qian, W. J. Wang, X. L. Deng, J Hazard Mater, Vol. 199-200(2012), pp.179-185.