Article ID Journal Published Year Pages File Type
6671813 Journal of Water Process Engineering 2018 6 Pages PDF
Abstract
Biofilter response was determined as the capability to utilize total ammonia nitrogen (TAN) by ammonia oxidizing bacteria (AOB). Tau (τ) values for ammonia oxidation were 40.73 day−1, 58.81 day−1 and 159.70 day−1 at 13 °C, 20 °C and 30 °C respectively. Total ammonia nitrogen substrate utilization rates as indicated in a decay plot differed significantly (P < 0.05) between temperature regimes 20 and 30 °C. However substrate utilization between 13 and 20 °C were not different (P > 0.05). Ammonia oxidation tau values were 118.20 day−1 and 223.50 day−1 at (20 ± 3 °C) and (30 ± 3 °C) diurnal temperatures respectively. These were significantly different (P < 0.05). The data in this study can be applied to future seeded or acclimating biofilters operating within these temperature ranges.
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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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