Degradation of Hydroquinone by Pulsed Corona Discharge Combined with Ozone Process

Abstract:

Owing to toxicity of pharmacy wastewater to microbe, commonly used biodegradation is often limited in application; accordingly exploiting new ways of the wastewater treatment with high efficiency is a hot topic. As a new efficient advanced oxidation, pulsed corona discharge combining with ozone is attracting more and more attention. In this study, a special reactor was designed, in addition, the removal of TOC(Total Organic Carbon) and COD (Chemical Oxygen Demand)of simulant pharmacy wastewater containing hydroquinone (500mg/L) by pulsed corona discharge combining with ozone were investigated . It was showed that the TOC and COD removal (53.8% and 72.3%) by the combined technology was much higher than by using the two techniques in series when all the samples were treated 40mins.The two methods in combination have a synergistic effect. TOC and COD removal could be improved obviously when NaCl feed concentration increased from 0 to1000 mg/L, yet further increase in NaCl feed led to a markedly decrease removal efficiency of TOC and COD.

• Periodical: Advanced Materials Research (Volumes 356-360)
• Pages: 1909-1913
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.356-360.1909
• Online since: October 2011
• Authors: Hong Ai Zheng, Jian She Liu, Li Li Pan
• Keywords: Hydroquinone, Ozone, Pulsed Corona Discharge, Synergism

References

[1] Gemma Eibes ,Gianfranco Debernardi, Gumersindo Feijoo: Biodegradation Vol. 22(2011), p.539–550

[2] Young Sun Mok t, Ho Won Lee, Young Jin Hyun :Korean Chem. Eng. Vol. 18(2001) , pp.308-316

[3] Robert G. Ewing & Melanie J. Waltman. Int. J. Ion Mobil. Spec. Vol. 12(2009) , p.65–72

[4] Miatno, A., SlmifiaK, Chah-abarti: IEEE Trans. Ind. Application. Vol. 31(1995) , p.957

[5] Titus M P, Molina V G, Banos M A et al. : Applied Catalysis B: Environmental. Vol. 47(2004) . pp.219-256.

[6] YueZhong Wen, XuanZhen Jiang, WeiPing Liu:Plasma Chemistry and Plasma Processing Vol.21(2002) . pp.175-185