ポリエチレン製スポンジ担体を活用する anammox 処理 Anammox Treatment Performances Using Polyethylene Sponge as a Biomass Carrier
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Nitrogen removal using a polyethylene (PE) sponge biomass carrier was evaluated in afixed-bed reactor for nitrogen removal by the anammox process. The fixed-bed reactor was operated continuously for 240 days. T-N removal efficiencies increased from 38%,67%，72%,74% to 75 % with stepwise increases in volumetric T-N loading rates. A T-N removal rate of 2.8 kg N/㎥/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 thematerial 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. With the obtained results, PE sponge is auspicious biomass carrier for growth of anammox bacteria.
- Japanese journal of water treatment biology
Japanese journal of water treatment biology 44(3), 121-128, 2008-09-15
Japanese Society of Water Treatment Biology