Quakers Hill Sewerage Treatment Plant
All Case Studies
Water Industry Quakers Hill, NSW

Quakers Hill Sewerage Treatment Plant

New 38 ML/day Biological Nutrient Removal Plant

38 ML/day
New Plant Capacity
4 Tanks
AGS Bioreactor Tanks
120t
Crawler Crane Mobilised
01
Engaged
LSCTP Program
Contract awarded
02
Mobilised
Quakers Hill
On-site delivery
03
Delivered
3 Years
Total programme
04
Outcome
Zero Harm
Safety standard met
Project Summary

New 38 ML/day Biological Nutrient Removal Plant

AJM United played a vital role in delivering the new 38 ML/day Biological Nutrient Removal plant with primary sedimentation at Quakers Hill, replacing the existing secondary treatment plant. Described as one of the most challenging projects on the LSCTP Program — and AJM United's proudest achievement on a water treatment project.

Key Achievements

Milestones engineered into delivery.

Quantifiable wins from a programme delivered to the highest engineering, safety and environmental standards.

38 ML/day
New Plant Capacity
4 Tanks
AGS Bioreactor Tanks
120t
Crawler Crane Mobilised
Specialist Water Industry
Sector-specific expertise applied end-to-end
01 — Challenge

The Challenge.

The installation of the AGS Bioreactor Tanks was the most technically demanding task. A 120t crawler crane was mobilised, large entry scaffolding erected inside each tank, and 40ft elevated work platforms positioned inside for access. Each tank's components were installed in progressive layers, requiring millimetre-precision for supports, launders, feed distribution pipes, waste pipes, aeration air pipework, fine bubble diffusers, downcomers, and reactor modules.

Quakers Hill Sewerage Treatment Plant — on-site delivery
On-site · Quakers Hill
02 — Delivery

Scope of Works.

  • Supply, Engineering, Manufacturing, Coatings, Structural Steel & Piping
  • AGS Bioreactor Tank installation (4 tanks)
  • Ductile iron lines for tertiary filters, sludge harvesting, and lowering tanks
  • PVCU Sch 80 and ABS double containment for chemical systems
  • SS316 pipe fabrication and supports
  • PE electrofusion and butt-welded underground services
  • Coordination across multiple in-service process facilities
03 — Coverage

Areas of Work.

  • AGS Bioreactor Tanks 1, 2, 3 & 4
  • Blower Building
  • Sludge Harvesting Tank
  • Sludge Buffer & Water Lowering Tanks
  • Tertiary Filters
  • Aeration Headers
  • Site Run Services
In The Field

Project Gallery.

A visual window into the water sector environments AJM United operates within.

Wastewater treatment plant works
Wastewater treatment plant works
Water recycling facility
Water recycling facility
Sewerage infrastructure upgrade
Sewerage infrastructure upgrade
On-site civil construction
On-site civil construction
Plant maintenance scope
Plant maintenance scope
04 — Outcome

Delivered. Safely. On time.

All works completed to the highest quality standards. Zero harm to all employees, contractors, and the environment — a major milestone for Sydney Water, UGL, and AJM United.

Ready to discuss your project?

Get in touch with our team.