Karuah WWTW

The Karuah plant serves the township of Karuah.

It currently treats:

• 0.36 megalitres per day.

The Karuah plant can handle wastewater from a population equivalent to:

• 2,500 people.

How it works

The plant provides secondary treatment of the wastewater through the following processes:

• Screening of solids and grit removal;
• Extended aeration through intermittently decanting aeration tanks for nutrient removal (nitrogen only);
• UV disinfection of treated effluent;
• Lagooning of biosolids for later dewatering and reuse in minesite rehabilitation projects.

How is the treated effluent used?

All biosolids produced at the plant are beneficially used for mine site rehabilitation.

Recycled water from the plant is used for:

• grit and screening washing
• general washdown around the plant
• grounds irrigation
• irrigation for a range of fodder crops (the water is reused onsite at Hunter Water’s Effluent Reuse Enterprise, which is adjacent to the plant).