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Partial nitritation treatment of underground brine waste with high ammonium and salt content

Paper ID Volume ID Publish Year Pages File Format Full-Text
21696 43235 2009 6 PDF Available
Title
Partial nitritation treatment of underground brine waste with high ammonium and salt content
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/NOx-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.

Keywords
Anammox; Free ammonia; Nitrogen removal; Partial nitritation; Salinity
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Partial nitritation treatment of underground brine waste with high ammonium and salt content
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 108, Issue 4, October 2009, Pages 330–335
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us