Application of Aerated Activated Carbon Filter for Advanced Treatment

Abstract:

The objective of this research was to study the treatment effect of micro-polluted water using conventional activated carbon filter (CACF) and aeration activated carbon filter (AACF), test the effect of backwashing on the performance of carbon filters, and provide a reference for water plant upgrading. The removal efficiency of pollutants and the impact of backwash of AACF was studied and compared with CACF. The results showed that, with an influent turbidity of 0.67 versus 0.44NTU, COD_Mn of 2.48 versus 2.74mg / L, UV₂₅₄ of 0.045versus 0.045cm^-1 and NH₄⁺-N of 0.15 versus 0.11mg / L, the removal effect of turbidity, COD_Mn, UV_254, and NH₄⁺-N are 36.19% versus 33.67%, 30.63% versus 21.53%, 23.06% versus 26.57% and 34.34% versus 19.62% . AACF improved the treatment of COD_Mn, and NH₄⁺-N by 26.66% and 60%. Backwash is found to enhance the performance of AACF on COD_Mn with the removal efficiency increases from the 25.82% to 29.75% after 2 hr backwash, and stabilizes at approximately 30% at the consequent 6 hrs; Backwash decreases UV₂₅₄ removal from 17.51% to 16.64% after 2 hr backwash, increases it to 19.64% to after 4 hr treatment, and drops to 13.44% after 8 hrs. Additionally, backwash has no significant effect on NH₄⁺-N.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 2090-2095
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.2090
• Online since: December 2013
• Authors: Feng Xun Tan, Rong Zhen Zhou, Dao Ji Wu, Ning Wang, Nan Lu, Xiao Xiang Cheng
• Keywords: Activated Carbon Filter, Aeration, Backwash, Dissolved Oxygen (DO)

References

[1] Shuo Feng: Vol (2012).

[2] Yapsakli K, Mertoglu B, Çeçen F: Vol. 45(2010), p.4349.

[3] Jie Yang, Shaoming Lu: Vol. 38(2012).

[4] Dussert B. W: Vol. 141(12) (1994), p.2224.

[5] Tiejun Qiao, Xiaofei Liu, Jie Fan, Jinsong Zhang: Vol. 20(2) (2011), p.3133.

[6] Eva Rodríguez, Angel Encinas, Francisco J. Masa, Fernando J. Beltrán: Vol. 70 (8), pp.1366-1374.

[7] Yung-Tse Hung: American Potato Journal, Vol. 61 (1) (1984), pp.9-22.

[8] Hong-Zhang Wu , Yu-Lan Hsu , Yi-Jong Lee , P-Hsiu-Ping Lin: Vol. 172 (3) (2005), pp.293-307.

[9] Su-hua Wu , Bing-zhi Dong , Tie-jun Qiao , Jin-song Zhang: Vol. 9 (11) (2008), pp.1576-1581.

[10] Kozet Yapsakli, Ferhan Çeçen: Process Biochemistry, Vol. 45 (3) (2009), pp.355-362.

[11] Bo Zhao: Vol. (2011).

[12] Guorong Luo: Vol. (2011).

[13] Yunan Xiao: Vol. (2005).

[14] Wu D J, Cheng X X, Zhai X D: Vol. 295(2013), p.8488.