Solids handling optimization at a small domestic wastewater treatment plant.

摘要

Solids handling refers to the removal and treatment of solid matter from raw wastewater. In an activated sludge WWTP, this solid matter is typically called sludge, and its treatment and disposal may represent a significant portion of wastewater treatment expenditures. This study is focused on optimizing the solids handling at a domestic WWTP in Crystal Beach, Ontario, Canada, by two main methods. Firstly, testing was designed to test various types of polymers designed to thicken sludge after it is removed from wastewater. Secondly, an investigation was devoted to characterizing a persistent foaming problem that was known to cause problems in the clarification process, which uses gravity settling basins to separate sludge solids from wastewater. Testing took place at Crystal Beach WWTP, in Crystal Beach, Ontario, from May to December, 2006. The results of this study may be used to develop similar solids handling optimization plans at domestic wastewater treatment facilities.