Categorization of Bacteria That Leak from Activated Sludge to Secondary Treated Water: Year-round Observations.

The present study proposes a categorization of bacteria that leak from activated sludge processes to secondary treated water (STW). Bacterial populations in primary treated water (PTW), activated sludge (AS), STW, and the 0.2‍ ‍μm-filtrate of STW (FSTW) in a full-scale wastewater treatment plant with two treatment trains were observed for a period of one year using a 16S rRNA ana-lysis approach.

Bacterial population dynamics in a laboratory activated sludge reactor monitored by pyrosequencing of 16S rRNA.

The microbial population in a laboratory activated sludge reactor was monitored for 245 d at 75 time points by pyrosequencing of 16S rRNA. Synthetic wastewater was used as the influent, and the reactor was operated under the same conditions throughout the experiment. The behaviors of different bacterial operational taxonomic units (OTUs) were observed.

Influence of biological pre-treatment of municipal solid waste on landfill behaviour in Sri Lanka.

Sri Lanka is an island in the Indian Ocean with an area about 65 610 km(2). The population of the country is around 20.2 million.