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Anammox treatment performances using polyethylene sponge as a biomass carrier

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conference contribution
posted on 12.02.2018, 15:10 by Hoa T. Tran, Ngoc K. Luong, Kenji Furukawa
Nitrogen removal using a polyethylene (PE) sponge biomass carrier was evaluated in a fixed-bed reactor for nitrogen removal by the anammox process. The fixed-bed reactor was operated continuously for 240 days. Average T-N removal efficiencies of each period increased from 38 % to 67 %, 72 %, 74 % to 75 % with stepwise increases in volumetric T-N loading rates. A T-N removal rate of 2.8 kg N/m3/day was obtained after 240 days of operation. After 3 months, anammox biomass fully covered the surface of the PE sponge carrier and the color of the material changed from white to red. Following 5 months of operation, biomass proliferated on the surface of the material and a dark-red color was observed. These results shown that anammox process using PE sponge materials as biomass carriers in the fixed-bed reactor will be suitable for NH4-N removal from wastewater containing high NH4-N. However, it is necessary to investigate whether PE sponge material can operate under high organic carbon concentrations in anammox process, because these wastewaters always contain high concentration of organic matter.
WEDC 37th International Conference





  • Architecture, Building and Civil Engineering

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  • Water, Engineering and Development Centre (WEDC)

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WEDC Conference


TRAN, H.T. ... et al, 2014. Anammox treatment performances using polyethylene sponge as a biomass carrier. IN: Shaw, R.J., Anh, N.V. and Dang, T.H. (eds). Sustainable water and sanitation services for all in a fast changing world: Proceedings of the 37th WEDC International Conference, Hanoi, Vietnam, 15-19 September 2014, 6pp.


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WEDC 37th International Conference