Exploring Research on Raschig Rings/Ceramic Double-Packed BAF

Xiao Mei Lv; Ji Li; Zhen Jiang Zhang; Xin Lei Gao

doi:10.4028/www.scientific.net/AMR.598.556

Paper Titles

Effect of Phosphorus Slag and Fly Ash on Mechanical Properties of High Belite Cement
p.535

Performance Comparison of Beams with Different Stirrups
p.539

Design and Research on the Warm-Mix Rubber-Modified Asphalt Mixture Based on the GTM Method
p.543

Breakage Characteristics of Granular Micaschist and its Fractal Description
p.552

Exploring Research on Raschig Rings/Ceramic Double-Packed BAF
p.556

Anti-Corrosion Performance of Four Zinc-Rich Coatings
p.561

The Strength and Stress-Strain Behavior of the Cemented Rockfill
p.565

Experimental Study at Chloride Erosion in Laterite Dam
p.569

Comparative Experiment Research on Different Material Improvement to the Influence of Expansive Soil Expandability
p.574

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 598Exploring Research on Raschig Rings/Ceramic...

Exploring Research on Raschig Rings/Ceramic Double-Packed BAF

Abstract:

A BAF double packed with Raschig rings/ceramic media was developed to determine its pollutants removal efficiency with less frequent backwashing as compared with ordinary BAF. Results showed that a stable operation was achieved during the entire test period and the backwashing cycle time could be extended as well. The COD and SS removals of 57% and 52%, respectively, could be achieved by the Raschig rings packed layer. Nitrifying bacteria accounted for as much as 95% in the ceramic packed layer and ensured high nitrification efficiency with a removal rate of 40.2 gNH4+-N/h•m3. With wastewater pretreatment and backwashing of the packed Raschig rings, the operation cycle of double-packed BAF could be extended to 16 days. In addition, the recovery of treatment performance was fairly rapid after backwashing.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 598)

Pages:

556-560

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.598.556

Citation:

Cite this paper

Online since:

November 2012

Authors:

Xiao Mei Lv, Ji Li, Zhen Jiang Zhang, Xin Lei Gao

Keywords:

Backwashing, Biological Aerated Filter (BAF), Ceramic, Double-Packed, Raschig Rings

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] T.Stephenson, A.Mann and J.Upton. Chem.Ind. Vol. 14(1993), p.533

Google Scholar

[2] Y. Zhao, Q. Yue, R. Li, M.Yue, S. Han, B. Gao, Q. Li and H. Yu. Bioresour. Technol. Vol. 100(2009), p.4955

Google Scholar

[3] B. Liu, D. Yan, Q. Wang, S. Li, S. Yang, and W. Wu. Bioresour. Technol. Vol. 100(2009), p.3891

Google Scholar

[4] R. Moore, J. Quarmby, and T. Stephensn. Wat. Res. Vol. 35(2001), p: 2514

Google Scholar

[5] W.S. Chang, S.W. Hong, J. Park. Process Biochemistry Vol. 37(2002), p: 693

Google Scholar

[6] W.H. Tian, X.H. Wen, Y.P. Cui, Y. Qian. China Water and Wastewater Vol. 19(2003), p.48(in Chinese)

Google Scholar

[7] J. Li, X.M. Lv, W.Y. Dong, Z.J. Zhang, Y. Fan, and W.K. Wang. Journal of Harbin Institute of Technology Vol. 44(2011), p.80(in Chinese)

Google Scholar

[8] State Environmental Protection Administration of China. Standard Methods for the Examination of Water and Wastewater. 4th edition. Beijing: China Environmental Science Press(2002) (in Chinese)

Google Scholar

[9] F. Fdz-Polanco, E. Mendez, M.A. Uruena, S. Villaverde, and P.A. Garcia. Wat. Res. Vol. 34(2000), p.4081

Google Scholar

[10] S. Wijeye koon, T. Mino, H. Satoh, and T. Matsuo. Wat. Sci. Tech. Vol. 41(2000), p.187

Google Scholar

[11] H. D. Wang, S. Y. Wang, Y. Z. Peng. China Water & Wastewater Vol. 22(2006), p.26(in Chinese)

Google Scholar

[12] Z.J. Zhang, J. Li, W. Y. Dong. Environmental Engineering Vol. 29(2011), p.40(in Chinese)

Google Scholar

[13] L.P. Qiu, J. Ma, and L.X. Zhang, Desalination Vol. 208(2007), p.73

Google Scholar