Hydroflux Deliver an Advanced Aeration Package for Batemans Bay STP
Aeration is central to the performance of any wastewater treatment plant that uses aerobic biological treatment.
Hydroflux recently delivered a complete aeration solution for the Batemans Bay Sewage Treatment Plant (STP) that focused on maximizing energy efficiency of both the diffuser and blower technology. The scope included AEROSTRIP® membrane diffusers, HyGrid® removable frames, pipework and aeration blowers.

Project Highlights
- Oxidation Ditch Process x 2
- TWL of 3.5M, Peak SOTR of 296 kg/h
- 96 x Q4 AEROSTRIP® Diffusers per ditch
- 8 x HyGrid® 316SS Removable Diffuser Frames with lifting beam and droppers
- 4 x 90kW Screw Blowers – low energy with low noise emission
Technology Highlights
- Ultra-fine bubbles provide increased mass transfer with reduced energy requirements
- AEROSTRIP® proprietary unique polyurethane membrane provides industry leading longevity (12+ years)
- Carbon neutral certification for the AEROSTRIP® independently certified by Climate Active Australia
- Proven technology across a wide range of biological processes throughout Australia
- Removable HyGrid® frame allows for simple inspection of the aeration diffusers
- Integrated package that capitalizes on energy efficiency of both the AEROSTRIP® and Blower package
AEROSTRIP® Data
The totals provided are for each Oxidation Ditch.
Item | Oxidation Ditch 1 | Oxidation Ditch 2 |
Diffuser Type | Q4.0 | Q4.0 |
Total number of Diffusers | 112 | 112 |
Total number of HyGRID™ Frames | 4 | 4 |
Total number of Diffusers per HyGRID™ | 28 | 28 |
Total membrane area (m2) 2 | 78.4 | 78.4 |
Floor Coverage (%) 2 | 6.2 | 6.2 |
Project Completed | 2022 |