Wastewater Nitrification Filter Systems
AST’s line of bead filters provide an excellent format for the aerobic nitrification process.
This process results in the conversion of ammonia to nitrite by groups of AOBs (Ammonia Oxidizing Bacteria) and of nitrite to nitrate by groups of NOBs (Nitrite Oxidizing Bacteria). Volumetric conversion rates (g-N converted/m3-day) high often exceeding 1,000 g-N/m3-day for higher effluent targets (>2mg-N/L). Below 2 mg-N/L conversion rates are proportional to the ammonia concentration. As with all biological processes, the effective nitrification is dependent on management.
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