Morpeth

Overview

Morpeth Wastewater Treatment Works Image

The Morpeth Wastewater Treatment Works serves the communities of:

  • Maitland
  • East Maitland
  • Ashtonfield
  • Metford
  • Morpeth
  • Thornton
  • Beresfield

It currently treats 10 Megalitres per day and can handle wastewater from a population equivalent to 60,000 people.

Treatment Process

The Morpeth WWTW provides secondary treatment using an activated sludge process.

It is designed to biologically remove nutrients (nitrogen & phosphorus) and to provide a high level of disinfection.

The plant consists of:

  • two mechanical step screens
  • a manually raked bar screen
  • an inlet lift pumping station
  • a vortex grit removal tank
  • a grit classifier
  • a soil bed filter for odour control
  • a biological reactor (anaerobic/anoxic/aerobic)
  • two circular clarifiers
  • ultra-violet (UV) disinfection
  • two gravity drainage decks
  • an aerobic digester
  • two belt filter presses
  • a lime clarifier
  • an effluent pumping station
  • four maturation ponds (retained from old WWTW for habitat and effluent reuse storage).

 

Recycling & Reuse

Continuous biosolids production is provided at Morpeth WWTW and all biosolids produced 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.

A nearby farmer, golf course and trotting track also take effluent from the plant for irrigation.

One of the maturation ponds retained after the previous trickling filter plant was decommissioned is currently used as an effluent storage pond for the Thornton North Dual Reticulation Scheme, enabling up to 3 Megalitres per day of effluent to be reused through summer.

As effluent reuse is primarily for irrigation, demands can be much lower during winter due to increased rainfall.

Unused treated effluent is discharged to the Hunter River.

Hunter Water recycles approximately 5091Megalitres per year. Learn more about our recycling and reuse initiatives.