Activated Sludge Process

Activated sludge (AS) is a process dealing with the treatment of sewage and industrial wastewaters and developed around 1912-1914. There is a large varity of design, however, in principle all AS consist of three main components: an aeration tank, which serves as bio reactor; a settling tank ("final clarifier") for seperation of AS solids and treated waste water; a return activated sludge (RAS) equipment to transfer settled AS from the clarifier to the influent of the aeration tank.

IWA Publishing joins the Independent Scholarly Publishers Group,  adding 12 journals and Water Intelligence Online to the collection IWA Publishing joins the Independent Scholarly Publishers Group, adding 12 journals and Water Intelligence Online to the collection

We are pleased to announce that IWA Publishing has joined the Independent Scholarly Publishers Group (ISPG). Dragonfly provides global sales representation for the ISPG, a consortium of 23 health sciences, life sciences and environmental sciences...

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