Abstract
Low- and high-concentration nitric wastewater can induce stable nitrite accumulation and realize the nitrification system, with the nitrite accumulation rate between 50% and 90%. In the low-concentration nitrite nitrification system, the average FA concentrations during the period of stable nitrite accumulation remained at 7 to 10 mg/L. In the high-concentration nitrite nitrification system, the nitrogen oxidation activity will not be affected by biomass, the nitrite oxidation activity is related to the system biomass, it is recommended to be measured by FA/MLSS. Keeping the FA sludge load below 0.1 is the precondition of making good nitrite accumulation and nitrogen degradation rate. Nitrite oxidation bacteria cannot be totally eliminated or washed out from the system.
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Wei, C. Analysis of the influence of free ammonia on the accumulation of nitrite in the nitrite nitrification system. Chin. J. Geochem. 28, 440–444 (2009). https://doi.org/10.1007/s11631-009-0440-z
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DOI: https://doi.org/10.1007/s11631-009-0440-z