The Pilot Study on Domestic Wastewater Treatment by Contact Oxidation Process

Abstract:

The airlift contact oxidation process is the combination of airlift technology with contact oxidation method. The process was used to treat domestic wastewater, the appropriate operating parameters were determined by experiment, and the operation stability, anti-impact loads and treatment cost of the process were also analyzed. The results show that this process has some advantages of compact layout, small occupancy area and low treatment cost. Under the conditions of air/water ratio of 16.8 and the hydraulic loading of 4.8m3/(m3•d), the average removal rate of COD and NH3-N reaches 80.1% and 58%, respectively. The effluent quality is stable and excellent, and it can be used as municipal miscellaneous water. The height of the media can be reduced due to its internal recycling system.

• Periodical: Advanced Materials Research (Volumes 347-353)
• Pages: 1399-1404
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.347-353.1399
• Online since: October 2011
• Authors: Jin Hu Yang, Wei Chen, Hang Xu, Lei Zhao
• Keywords: Airlift, Biofilm, Contact Oxidation, Domestic Wastewater

References

[1] WU J.Q. ,PAN Q and LU H.. Lab Scale Study of Intermittent Aeration Bio-contact Oxidation in Treatment of Domestic Sewage. Industrial Water&Wastewater.Vo1.40(2009) , pp.50-52.

[2] CHEN J. F., ZHOU S.Q.. Biological Contact Oxidation Process for Plastic Waste Dismantling Wastewater. China Water ＆ Wastewater. Vol. 25(2009), pp.65-69.

[3] LIU B.W.. Experimental Study on Combined Technics AOA/Bio-contact Oxidation for Municipal Wastewater. Technology of Water Treatment. Vo1.36(2010) , pp.84-87 .

[4] Jenyuk Lohwacharin, Ajit P. Annachhatre. Biological sulfide oxidation in an airlift bioreactor. Bioresource Technology. Vol.101(2010), pp.2114-2120.

DOI: 10.1016/j.biortech.2009.10.093

[5] LIU X.L., WANG Y. and ZHAO Y.S.. Research on Treatment of Municipal Sewage by Biological Contact Oxidation with Hydraulic Rotated Media. Journal of Jiling University (Earth Science Edition). Vol. 34(2004), pp.126-130.

[6] J.A. Melero, F. Martínez, J.A. Botas, R. Molina and M.I. Pariente. Heterogeneous catalytic wet peroxide oxidation systems for the treatment of an industrial pharmaceutical wastewater. Water Research. Vol.43(2009), pp.4010-4018.

DOI: 10.1016/j.watres.2009.04.012

[7] Z.H. Li, K. Yang, X.J. Yang and L. Li .Treatment of municipal wastewater using a contact oxidation filtration separation integrated bioreactor. Journal of Environmental Management. Vol.91(2010), pp.1237-1242.

DOI: 10.1016/j.jenvman.2010.02.001

[8] Eva L.M. Figuerola, Leonardo Erijman. Diversity of nitrifying bacteria in a full-scale petroleum refinery wastewater treatment plant experiencing unstable nitrification. Journal of Hazardous Materials.Vol.181(2010), pp.281-288.

DOI: 10.1016/j.jhazmat.2010.05.009

[9] Kyu-Jung Chae, T. Rameshwar, Am Jang, Sung H. Kim and In S. Kim. Analysis of the nitrifying bacterial community in BioCube sponge media using fluorescent in situ hybridization (FISH) and microelectrodes. Journal of Environmental Management. Vol.88(2008), pp.1426-1435.

DOI: 10.1016/j.jenvman.2007.07.016

[10] Slil Siripong, Bruce E. Rittmann. Diversity study of nitrifying bacteria in full-scale municipal wastewater treatment plants. Water Research. Vol. 41(2007), pp.1110-1120.

DOI: 10.1016/j.watres.2006.11.050