Mosgiel wastewater treatment plant

The Mosgiel Wastewater Treatment Plant is at the end of Carlyle Road, Mosgiel.

This secondary plant treats the wastewater of approximately 10,000 people as well as minor trade wastes. Major industrial wastes near Mosgiel are piped separately through to the Green Island Treatment Plant.

How the Mosgiel plant works

Wastewater passes through a stepscreen removing gross solids. A grit trap collects heavier particles. Next it passes through a primary clarifier, a biological rock filter and a secondary clarifier.

The treated effluent is stored in the effluent holding tank and then pumped to the Green Island Wastewater Treatment Plant. Mosgiel secondary wastewater is UV treated at Green Island before discharge to the ocean outfall.

Last reviewed: 12 Jul 2008 7:17pm