Puriflo has wide experience with activated sludge treatment systems for treating industrial effluent.

The treatment consists of an aeration tank in which a bacterial culture is given oxygen by aeration, enabling it to consume the organic content of the effluent or sewage.

After treatment in the aeration tank, the flow passes to a settlement tank where the bacterial culture separates from the effluent. It then discharges to a sewer, or in some cases a river.

The settled culture is then passed back to the aeration tank. As the culture volume grows, some is periodically passed to another tank as surplus sludge.

Puriflo's plant-activated sludge treatment plant is designed for each specific application. Fine bubble diffusers are used to give maximum efficiency of oxygen transfer, resulting in lower running costs.