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- W2012244606 abstract "The potential inhibitory effect of five azo dyes on ammonia-N oxidation was investigated. Ammonia-N oxidation was inhibited by the dyes: Mordant Black 17, Direct Red 2, Reactive Red 4, Reactive Yellow 2 and Direct Blue 14 at the concentrations (0.01mgL-1 to 100mgL-1) tested. Inhibition of ammonia-N oxidation increased with increasing concentration of the toxicants. The EC50 values obtained were; 0.208 (Mordant Black 17), 1.813 (Direct Red 2), 7.926 (Reactive Yellow 2), 50.174 (Direct Blue 14) and 332.208 (Reactive Red 4). The results obtained were attributed to any/or all of the following factors: molecular size, impurities in the toxicants and metallic ions. The potential adverse ecological impact of the azo dyes on the productivity of ecosystems is discussed. Keywords: inhibitory effect, azo dyes, Nitrosomonas, ammonia oxidation. AJAZEB Vol. 7 2005: pp. 61-67" @default.
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- W2012244606 date "2008-02-06" @default.
- W2012244606 modified "2023-09-27" @default.
- W2012244606 title "Inhibitory effect of azo dyes on ammoni-n oxidation by nitrtosomonas" @default.
- W2012244606 doi "https://doi.org/10.4314/ajazeb.v7i1.41149" @default.
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