Effects of Air/Liquid Ratio on Treatment Efficiency of Textile Wastewater in a Biological Aerated Filter Reactor

Abstract:

A biologically aerated filter (BAF) is a novel, flexible and effective bioreactor that provides a small footprint process option at various stages of wastewater treatment. Double layers of activated carbon and ceramsite were applied in the biological aerated filter reactor. An experiment was conducted under laboratory conditions to investigate the treatment efficiencies at different air/liquid ratios. The experimental results obtained showed that air/liquid ratio had a greater effect on NH4+–N removal than COD removal. More than 80% ammonia nitrogen was removed at 2 of air/liquid ratio. However, less than 50% COD was removed at 2 of air/liquid ratio.

• Periodical: Applied Mechanics and Materials (Volumes 316-317)
• Pages: 241-244
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.316-317.241
• Online since: April 2013
• Authors: Xu Jie Lu
• Keywords: Biological Aerated Filter (BAF), Chemical Oxygen Demand (COD), NH₄⁺–N, Removal Efficiency, Textile Wastewater

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