Removal of Ammonia Nitrogen in Biological Aerated Filter (BAF) Filled with Smaller Ceramsite Particles

Abstract:

The smaller ceramsite particles were selected to be filled in a biological aerated filter (BAF) to remove ammonia nitrogen from the synthetic wastewater which did not contained COD. The effect of the filter layer, the inner reflux ratio and the ceramsite particle on the removal rate of ammonia nitrogen in the wastewater was investigated in the present study. The results indicated that the steady removal rate of eighty-eight percent was excitingly detected after the 24 days of the biofilm formation, and both the low and middle filter layer showed the removal rate of the wastewater ammonia nitrogen higher than the top layer. In addition, in the present study, the best inner reflux ratio of the present smaller-ceramsite BAF could be steadily kept in case of the slight fluctuation of the ceramsite size and the organic concentration of the wastewater.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 1583-1587
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.1583
• Online since: December 2012
• Authors: Bo Zu, Yong Zhen Li, Jun Xu, Xiang Chao Liu, Qing Wei Yang
• Keywords: Ammonia Nitrogen, Biological Aerated Filter (BAF), Removal Rate, Small Ceramsite Particle

References

[1] Westerman P W, "Bieudo J R, Kantardjieff A. Upflow biological aerated filters for the treatment of flushed swine manure".Bioresource Technology, 2000, vol.74(3): 181-190.

DOI: 10.1016/s0960-8524(00)00028-6

[2] Clark T, Stephenson T,Peame PA. "Phosphoms removal by chemical precipitation in a biological aerated filter". Water Research, 1997, vol. 31(10): 2557-3563.

DOI: 10.1016/s0043-1354(97)00091-2

[3] Jiang Ping, Hu Jiucheng. "Research on the homem ade light granular ceramics used in BAF".Acta scientiae circumstantiae,2002, vol.22(4): 459-465. (In Chinese)

[4] State Environmental Protection Administration of China.Water and exhausted water monitoring analysis method(4th Edition). Beijing: China Environmental Science Press, 2002. 30-200. (In Chinese)

[5] Xu Ying, Zhang Linjun, Cao zhong. "Factors influencing organism and ammonia nitrogen removal by a biological aerated filter". Water resources protection, 2008, vol.24(2): 76-81. (In Chinese)

[6] Zu Bo, Zhang Daijun, Zhou Fuchun. "New technology of enhancing biological nitrogen removal form wastewater: mechanism and kinetics of integrating anaerobic ammonium oxidation, methanogenesis and denitrification". Beijing: China Environmental Science Press, 2009. 193-199. (In Chinese)

[7] Yan zichun, Long Tengrui, He Qiang. "The influence by filler in biological aerated filter".Technology of water treatment, 2005, vol.31(5): 27-29. (In Chinese)

[8] T D Kent, S C Willims, C S B Fitzpatrick. "Ammoniacal nitrogen removal in biological aerated filters: the elect of media size". J. ClWEM, 2000, 14: 409-414.

DOI: 10.1111/j.1747-6593.2000.tb00286.x

[9] Zu Bo, Zu Jian, Zhou Fuchun. "Carbon and nitrogen metabolic characteristics in biological aeration filter". Chinese Journal of Environmental Engineering, 2008, vol.2(2): 220-224. (In Chinese).