Back to Search
Start Over
Partial nitritation treatment of underground brine waste with high ammonium and salt content
- Source :
-
Journal of Bioscience & Bioengineering . Oct2009, Vol. 108 Issue 4, p330-335. 6p. - Publication Year :
- 2009
-
Abstract
- Abstract: Underground brine waste containing high concentrations of ammonium and with a salinity of 3% is usually generated during the production of methane gas and iodine in the gas field of Chiba Prefecture, Japan. In this study, one swim-bed reactor, packed with a novel acrylic fiber biomass carrier (Biofringe), was applied to the partial nitritation treatment of this kind of underground brine waste. A stable nitrite production rate of 1.6 kg NO2-N m−3 d−1 was obtained under a nitrogen loading rate of 3.0 kg-N m−3 d−1, at a pH of 7.5 and a temperature of 25 °C. Nitrate production was negligible and the effluent NO2-N/NO x -N ratio was above 98% due to the successful inhibition of nitrite-oxidizing bacterial activity. Free ammonia was considered to be the main factor for inhibiting the activity of nitrite-oxidizing bacteria. A microbial community shift was demonstrated by 16S rRNA analysis, and it was shown that the ammonium-oxidizing bacteria became the predominant species after successful nitrite accumulation was observed. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13891723
- Volume :
- 108
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Bioscience & Bioengineering
- Publication Type :
- Academic Journal
- Accession number :
- 44013374
- Full Text :
- https://doi.org/10.1016/j.jbiosc.2009.04.014