Aerobic Granular Sludge Formation and Microbial Community Structure is Affected by Reactor Feed Rates.

Verawaty, Marieska (2013) Aerobic Granular Sludge Formation and Microbial Community Structure is Affected by Reactor Feed Rates. The 5th International IWA Specialty Conference on Microbial Ecology and Water Engineering (MEWE 2013).

Spreadsheet (Extended Summary Original Research Article) MEWE_Ann Arbor 2013.pdf - Published Version Download (3MB)

Abstract

Laboratory scale reactors treating domestic wastewater were operated for selection of aerobic granules. We found the formation, structure, biological performance and microbial community structures of aerobic granules were affected by the rates of the influent wastewater feed. In a reactor with slow feed (R1), poor granulation occurred during the 190 day operation. However, good granulation occurred in the fast feed reactor (R2) after 85 days of operation. Analysis of microbial community shifts indicated that granulation in R2 correlated with increasing abundance of Gammaproteobacteria (uncultured Competibacter sp.). In R1 the formation of loosely structured, large aggregates and then later small granules correlated with high abundance of Flavobacterium and Commamonas spp. The results suggest that slow reactor feed rates are detrimental to granule formation, which is important to consider in the full-scale application of the technology.

Item Type:	Article
Subjects:	#3 Repository of Lecturer Academic Credit Systems (TPAK) > Corresponding Author
Divisions:	08-Faculty of Mathematics and Natural Science > 46201-Biology (S1)
Depositing User:	Dr. Marieska Verawaty
Date Deposited:	11 Apr 2023 14:06
Last Modified:	11 Apr 2023 14:06
URI:	http://repository.unsri.ac.id/id/eprint/95103

Actions (login required)

View Item