Characterisation of microbial communities in relation to physical-chemical parameters during in situ aeration of waste material

Characterisation of microbial communities in relation to physical-chemical parameters during in situ aeration of waste material

Copyright © 2010 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 30(2010), 11 vom: 01. Nov., Seite 2177-84
1. Verfasser: Mellendorf, Maren (VerfasserIn)
Weitere Verfasser: Huber-Humer, Marion, Gamperling, Oliver, Huber, Pia, Gerzabek, Martin H, Watzinger, Andrea
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Air Pollutants Ethers Lipids Phospholipids
Beschreibung
Zusammenfassung:Copyright © 2010 Elsevier Ltd. All rights reserved.
This study investigates changes in waste microbial community composition and biomass during in situ aeration in laboratory-scale columns over 32 weeks. Microbial profiles were assessed in solid and leachate samples in relation to physical-chemical parameters using phospholipid ester linked fatty acid (PLFA) and phospholipid ether lipid (PLEL) analysis and parameters such as pH, EC, TC, TOC, TN, NO(3)(-), NH(4)(+), COD and the biochemical parameter BOD(5). Principal component analysis (PCA) of the individual PLFAs and PLELs indicated a change in community composition and biomass over the operation period, which could be differentiated in the three phases (i) anaerobic, (ii) aeration start and (iii) extended aeration. PCA revealed that aeration and pH values were the most influential parameters on microbial dynamics. There was a marked decrease of ubiquitous microorganisms, some Gram negative bacterial groups and methanogenic archaea, but a consecutive increase of Gram positive microbial groups along with a rapid reduction of organics after aeration start. Those in situ aeration effects on microbial community composition and C conversion were stable throughout the laboratory set-up of 32 weeks
Beschreibung:Date Completed 02.02.2011
Date Revised 11.10.2010
published: Print-Electronic
Citation Status MEDLINE
ISSN:1879-2456
DOI:10.1016/j.wasman.2010.04.023