Journal article

Microbial ecology of the leach bed anaerobic digestion of unsorted municipal solid waste

P Silvey, PC Pullammanappallil, L Blackall, P Nichols

WATER SCIENCE AND TECHNOLOGY | I W A PUBLISHING | Published : 2000

Abstract

The microbial ecology of the sequential, leach-bed, mesophilic anaerobic digestion of unsorted, coarse municipal solid waste (MSW) was examined over 80 days. The methane yield was approximately 75% of the ultimate biochemical methane potential (BMP) of the waste loaded into the digesters. The operational strategy involved a sequence of two digesters containing fresh and anaerobically stabilised MSW respectively. Cell wall phospholipid fatty acid (PLFA) and ether lipid (PLEL) analysis was used to monitor changes in microbial biomass. Both Bacterial and Archaeal biomass were heavily influenced by pH during the two-week start up period. Archaeal biomass peaked just before the methane production..

View full abstract

University of Melbourne Researchers