Preliminary studies on the microbial community structure of membrane-aerated biofilms treating municipal wastewater

Membrane-aerated biofilm reactors (MABRs) support biofilms that receive oxygen and nutrients from opposite sides of the biofilm and thus should behave differently than the activated sludge process. Population modeling predicted the simultaneous presence of aerobic heterotrophs, nitrifying bacteria,...

Full description

Saved in:
Bibliographic Details
Published inDesalination Vol. 146; no. 1; pp. 421 - 426
Main Authors Cole, Alina C., Shanahan, John W., Semmens, Michael J., LaPara, Timothy M.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 10.09.2002
Elsevier
Subjects
Activated Sludge Process
Applied sciences
Biological and medical sciences
Biological treatment of waters
Biotechnology
Denitrifying bacteria
DGGE
Environment and pollution
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Municipal wastewater
Nitrifying bacteria
Other wastewaters
PCR
Pollution
Population modeling
Wastewaters
Water treatment and pollution
Denitrifying bacteria
Nitrifying bacteria
Population modeling
DGGE
PCR
Membrane reactor
Bioreactor
Chemical oxygen demand
Water quality
Biofilm
Urban waste water
Waste water purification
Microbial community
Biological purification
Online AccessGet full text

Cover

More Information
Summary:Membrane-aerated biofilm reactors (MABRs) support biofilms that receive oxygen and nutrients from opposite sides of the biofilm and thus should behave differently than the activated sludge process. Population modeling predicted the simultaneous presence of aerobic heterotrophs, nitrifying bacteria, denitrifying bacteria, and acetoclastic methanogens in a membrane-supported biofilm. Community analysis by PCR-DGGE demonstrated that a pilot-scale MABR supported a significantly different structure than an activated sludge process. Nitrifying bacteria were not identified in either the MABR or activated sludge community due to an unexpected artifact. Nitrite reductase genes were detected in both samples. Our results suggest that MABRs support unique microbial populations that have the potential to remove both nitrogenous and carbonaceous pollutants from wastewater.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ObjectType-Conference-3
SourceType-Conference Papers & Proceedings-2
ISSN:0011-9164
1873-4464
DOI:10.1016/S0011-9164(02)00525-8