Sewage Treatment Performance of Biological Aerated Filters with Fe-Containing Compound Clinoptilolite Media

Abstract:

Fe-containing compound clinoptilolite media (Fe-M), prepared with natural clinoptilolite, was applied to be the filter media of BAF, and then the treating performance of sewage by BAFs with Fe-M and ceramsite were investigated. Because Fe-M had relatively larger surface area, better pore connectivity, higher biofilm microbial biomass, and the ion-exchanging and adsorption effect, a higher ammonia nitrogen removal efficiency was obtained in BAF with Fe-M than ceramsite; and higher phosphorus removal in BAF with Fe-M was also realized by the adsorption and precipitation effect of the leaching ferric ions. Fe-M is more suitable to be used as the filter of BAF to treat sewage wastewater than ceramsite, which has a high value of broad application prospects and engineering popularization value.

• Periodical: Applied Mechanics and Materials (Volume 737)
• Pages: 579-583
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.737.579
• Online since: March 2015
• Authors: Hui Mu*, Yu Xiao Zhao, Min Tian Gao, Xiao Dong Zhang, Jie Zhang, Yan Li
• Keywords: Ammonia Nitrogen, Biological Aerated Filters (BAF), Fe-Containing Compound Clinoptilolite Media (Fe-M), Phosphorus Removal

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DOI: 10.1016/s0269-7491(98)00007-4