"Different from several other global initiatives using a bottom-up approach to solicit microbial samples, the consortium used top-down sampling strategy to target the microbiomes of activated sludge processes in municipal wastewater treatment plants that represent a vital element of the infrastructure for modern urban societies.
Employing Ardern and Lockett's activated sludge process, wastewater containing organic matter Is aerated in an aeration basin, in which micro-organisms (bugs) metabolise the suspended and soluble organic matter.
Environmental and physical scientists and engineers examine the use of activated sludge for wastewater treatment and environmental protection, especially the microbial community structure and the processes that underlie activated sludge.
Activated sludge system is a conventional biological method for both municipal and industrial wastewater treatment plant producing excess biological floc of biomass known as waste activated sludge (WAS).
Superior advantages of sequencing batch reactors than conventional activated sludge processes are flexible operation and the fact that there is no liquid or solids recycling for the treatment of complex wastewater.