Nitrification in a vertically moving biofilm system.

M Rodgers; M G Healy; J Prendergast

doi:10.1016/j.jenvman.2005.07.003

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PubMed · 16182437

Nitrification in a vertically moving biofilm system.

M Rodgers·M G Healy·J Prendergast

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Abstract

A laboratory continuous feed biofilm reactor, comprising a bulk fluid reactor, a biofilm plastic module, a feed tank, and pneumatic devices and controls, was operated for a total period of 257 days, including seeding time, to treat domestic-strength synthetic wastewater under increasing ammonium nitrogen (NH(4)(+)--N) loading rates, ranging from 0.17+/-0.01 (0.71+/-0.06 gm(-2)d(-1)) to 0.70+/-0.02 kgm(-3)d(-1) (2.9+/-0.1 gm(-2)d(-1)). The biofilm plastic module was moved vertically in and out of the wastewater in continuous cycles. The maximum NH(4)(+)-N removal rate was reached during the maximum loading phase, when a NH(4)(+)--N loading rate of 0.70+/-0.02 kgm(-3)d(-1) (2.9+/-0.1 gm(-2)d(-1)) was applied to the system. During this loading period, the average NH(4)(+)--N removal rate was 0.30+/-0.10 kgm(-3)d(-1) (1.30+/-0.40 gm(-2)d(-1)).

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Ammonium Chloride Biofilms Industrial Waste Water Pollutants, Chemical Journal Article Research Support, Non-U.S. Gov't

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M Rodgers, M G Healy, J Prendergast. 2005-09-22. Nitrification in a vertically moving biofilm system.. https://doi.org/10.1016/j.jenvman.2005.07.003

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