Pilot-scale integrated fixed-film activated sludge (IFAS) and non-IFAS control systems were compared, with respect to overall performance and functional behaviors and microbial population composition ...

Australian-based process contractor, Environmental Solutions International (ESI), has recently completed the commissioning of a new WwTP at South Caboolture in Queensland, based upon its BNR process.

Twenty-first century technology is gaining momentum in the staid business of wastewater treatment. Since the federal Water Pollution Control Act of 1972 fueled the buildout of the nation’s current ...

When high-rate processes first appeared for municipal wastewater treatment in the early 1980s, they were restricted to a handful of proprietary processes such as the biological aerated filter (BAF).

Activated sludge mass in systems without primary sedimentation is composed of biomass and primary suspended solids, both composed of organic degradable, organic non-degradable, and mineral components.