Showing papers by "I. S. Bright Singh published in 2004"
Journal Article•
TL;DR: The optimum growth requirements of two nitrifying consortia developed from treated sewage by enrichment technique were determined by a series of experiments and directly contribute for developing a fermentation process for the mass production of nitrifiers as well as for designing bioreactors for nitrify sewage.
Abstract: The optimum growth requirements of two nitrifying consortia developed from treated sewage by enrichment technique were determined by a series of experiments. There was total inhibition of nitrification at above 2.75 g r' NH/- Nand 2.5g r' N02' - N and the ammonia oxidizing consortium preferred a pH at 8.5 and the nitrite oxidizing consortium a pH of 7.5 as the optima for nitrification. Optimum temperatures were between 20° and 30°C for both the groups. As the rate of airnow was increased from I to 7 Ilmin, the build-up of N02- -N increased 10-fold and the consumption of N02- -N increased by a factor o f 28.8 implying that the ammonia oxidizing consortium in a bioreactor required three times more aeration than th at for nitrite oxidizers for ex press ing their full nitrifying potential. These data directly contribute for developing a fermentati o n process for the mass production of nitrifiers as well as for designing bi oreactors for nitrifying sewage.
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