Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature.

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Abstract Text:

Bipin K Pathak,Futaba Kazama,Yasuhiro Tanaka,Kazuhiro Mori,Tatsuo Sumino,

Anaerobic ammonium oxidizing (anammox) bacteria present in microbial communities in two laboratory-scale upflow anoxic reactors supplied with small amounts of ammonium (<3 mg/l) at low temperature were detected and quantified. The reactors, operated at 20 degrees C, were seeded with an immobilized microbial consortium (IMC) and anaerobic granules (AG) from an upflow anaerobic sludge blanket (UASB) treating brewery wastewater. Our results showed that complete ammonium and nitrite removal with greater than 92% total nitrogen removal efficiency was achieved in the reactor inoculated with both the IMC and AG, while that of the reactor inoculated with only the IMC was lower than 40%; enrichment was successful after the addition of AG. Quantitative fluorescence in situ hybridization (FISH) analysis confirmed that anammox bacteria were present only in the reactor inoculated with an IMC and AG. The copy number of the 16S-rRNA gene of the anammox bacteria calculated by most probable number-polymerase chain reaction (MPN-PCR) from the total DNA extracted from both reactors (2.5 x 10(4) copies/mug of DNA) was two orders lower than that of the domain bacteria (2.5 x 10(6) copies/mug of DNA). The results revealed that immobilized multiple seed sludges were optimal for anammox enrichment at low temperature and ammonium concentrations.

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Publishing Authors By Initials

BK Pathak,F Kazama,Y Tanaka,K Mori,T Sumino,

For similar waste disposal, fluid research abstracts see: waste disposal, fluid research

PUBMED ID PMID:

MEDLINE DATE:

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Applied microbiology and biotechnology

VOLUME: 76

Page Numbers: 1173-9

Journal Abbreviation: Appl. Microbiol. Biotechnol.

ISSN: 0175-7598

DAY: 17

MONTH: 08

YEAR: 2007

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8406612

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Keywords Mesh Terms:

KEYWORDS: Waste Disposal, Fluid

MESH TERMS: microbiology

Chemical & Substance for Abstract: Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature. Information

Substance Name: Nitrogen

Registry Number: 7727-37-9

Grant and Affiliation Information for Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature.

AFFILIATION: Department of Environmental Science and Engineering, Kathmandu University, P.O. Box 6250, Kavre, Nepal. pathakbipin@gmail.com

Country: Germany

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Appl Microbiol Biotechnol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature Related Publications

• Comparisons of the sensation perceived and intradental nerve activity following temperature changes in human teeth.
• Docosahexaenoic acid ethyl ester and its ultraviolet degradation products showed DNA-breaking activity in vitro and cytotoxic effects on the HSC-4 cell line.
• Methylenetetrahydrofolate reductase gene polymorphism and ischemic stroke: sex difference in Japanese.
• Molecular genetic analysis and mutation screening of the VHL gene in a Japanese family with von Hippel-Lindau disease.
• Quantification of anammox populations enriched in an immobilized microbial consortium with low levels of ammonium nitrogen and at low temperature.
• Responses of bradykinin sensitive tooth-pulp driven neurons in cat cerebral cortex.