Biochemical Characteristics of UBAF in Different Influent NH₄⁺-N Concentration under Yellow River Condition

Abstract:

The upflow biological aerated filter(UBAF) filled with grain slag was applied in Yellow River treatment. The aim is to study the reactor’s ability withstanding ammonia nitrogen volumetric loading in Yellow River water treatment. As influent NH₄⁺-N concentration increases from 0.2mg/L to 3.0mg/L, the average removal rate of turbidity, COD_Mn and NH₄^{+-N were 82%, 27% and 97% respectively, and removal of NH₄+-N occurs mainly in the filter layer depth changing from 150cm to 210cm. The nitrification performance improves when PO₄3- -P concentration in water reach 60μg/L, and the removal of NH₄+-N occurs mainly in the filter media layer depth shortened from 210cm to 90cm.}

• Periodical: Advanced Materials Research (Volumes 374-377)
• Pages: 991-994
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.374-377.991
• Online since: October 2011
• Authors: Jian Guang Liu, Kai Li, Hui Liu, Meng Meng Feng
• Keywords: Ammonia, Biofilter, Nitrification, Upflow Biological Aerated Filter, Water Treatment

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