Typically waste water treatment processes consist of a series of stages, both mechanical and biological, which clean the water and remove contaminants. Foaming issues can arise during these stages due to presence of surface active/ foam stabilizing chemicals in the wastewater. Pumping, aeration and evolution of biological gases from digestion processes can lead to foam formation within the waste water treatment plant affecting plant efficiency.
SNF (UK) Ltd offer a range of FLOFOAM antifoam products for waste water treatment applications suitable for aerobic and anaerobic digestion, clarification and settlement. These FLOFOAM products act as antifoam and defoaming agents by preferentially displacing foam stabilizing species at the bubble surface, allowing liquid in the bubble surface to drain, and destabilizing it leading to rupture. This destabilizing effect is a purely physical one and does not rely on any chemical reaction.
A range of FLOFOAM chemistries including Mineral oil, Silicone, Natural & Synthetic organic, are available to meet the particular requirements of various wastewater applications and are effective at low addition rates with typical dosage levels in the range of 5-20ppm.