AquaBlade Blue Diffuser


Aquablade Blue

Aquablade Blue Diagram

The AquaBlade Blue diffuser is the only entirely Australian manufactured membrane diffuser on the market. It has been proudly developed by Aquatec Maxcon. The AquaBlade Blue diffuser is in the form of a long curved blade rather than a disc or cylinder typical of other membrane diffusers. This unique profile allows the diffuser to achieve greater floor coverage at lower system cost with superior oxygen transfer.

The AquaBlade Blue diffuser has been extensively tested prior to market release. These tests included oxygen transfer rate, corrosion resistance, air pressure and mechanical property testing of all components and whole assemblies. The Aquatec Maxcon diffuser test facility is located at Ipswich. This test facility is dedicated to full scale testing of air diffusers and allows Aquatec Maxcon to confidently design, predict and prove diffuser performance for almost any application. Aquatec Maxcon can now test to 9m water depth.

The AquaBlade Blue consists of a silicon membrane with high elasticity which guarantees the fine slits close when airflow is stopped, even after extended periods of operation. The membrane is also resistant to shrinkage, has a high resistance to tearing and has superior ageing characteristics.

Aquablade L

The AquaBlade L diffuser is an evolutionary development of our AquaBlade diffusers, continuing our ongoing programme which commenced more than 20 years ago.

AquaBlade L Benefits:

  • Very high oxygen transfer efficiency and low head loss. The unique design has been proven to offer excellent, near constant efficiency over the entire operating range. This reduces the required air flow range compared to other diffuser designs which typically have decreasing efficiency at increasing flow, resulting in even greater air flow requirements.

  • The AquaBlade L uses our long term proven silicone rubber membrane technology which has been demonstrated to outperform EPDM and other typical membrane materials. A polyurethane membrane is also available. It shares proven pultruded GRP technology for the diffuser base.

  • The AquaBlade L diffuser is typically ≈6m long with air supplied from one end. It reduces the number of pipes required, meaning fewer components to handle and less potential points of failure.

  • Fed from one end of the diffuser in lieu of the centre, AquaBlade L can be coupled in series for even less piping, further reducing costs, enabling essentially a continuous 12m strip diffuser.

AquaBlade L

  • The top surface has no obstructions which might retain grit or other materials and it self cleans on inflation unlike designs with retaining rings or raised edges. The result is a longer design life due to reduced membrane abrasion.

  • Our innovative mounting plate enables the installation or removal of the mount in the desired location where others have to slide along the full length of the installation.

  • The unique pultruded GRP base is very strong, enabling a 6m diffuser to require only two supports (4 anchors or bolts) per diffuser, so less time is required for on-site installation, reducing the overall cost of the diffusers.

  • There are two installation options. The more economical installation where the diffusers are fixed to the floor and the more flexible option where the diffusers are able to be mounted on ballasted portable frames for removable installations.

  • Aquablade L diffusers have a very robust base section which can easily withstand personnel and handling loads while being light enough to be lifted by a single person.

  • The diffuser inlet incorporates an integral check valve to prevent backflow in the unlikely event of membrane rupture.

  • An automated moisture bleed is provided to allow any accumulated moisture to be removed without operator intervention, thereby reducing labour costs.

  • There are no metal components internal to the diffuser, so chemical cleaning is readily achieved.

  • The AquaBlade L offers cost reduction by eliminating most associated pipework and the associated supports.

  • Every AquaBlade L diffuser is subject to rigorous quality assurance and tank tested to confirm no leaks are present and the bubble pattern and headloss is within normal range before delivery.

 AquaBlade L    AquaBlade L




Design Advantages

Aquablade Diagram 1


Performance Characteristics

Aquablade Diagram

A high transfer rate of oxygen is produced through the optimised profile of the slits and the slitting pattern. When airflow to the diffuser is stopped, these slits tightly close to prevent backflow of mixed liquor.

Key Advantages

Key Characteristics

Aerobic Digester during bubble testing at Thabeban WWTP 1 Aerobic Digester during bubble testing at Thabeban WWTP 2
Aerobic Digester during Bubble Testing at Thabeban WWTP

Key Installations

 Kingaroy WWTP Aquablades
Kingaroy WWTP
 Oxley Creek STP Aquablades
Oxley Creek STP
 Chinchilla STP Aquablades
Chinchilla STP
 Altona STP Aquablades
Altona STP
 Ballina WWTP Aquablades
Ballina WWTP


Aquatec Maxcon has over 47 years’ experience in treating water and wastewater for both municipal and industrial applications. A leader of the water industry, Aquatec Maxcon has introduced a range of innovative process technologies to Australia including the first UASB, IC Reactor, Membrane Bioreactor and Circox Reactor. We have a successful track record in introducing new technologies, and have diligently supported their implementation within Australian conditions.

Aquatec Maxcon Pty Ltd is part of the Aquatec Maxcon Group which provides a complete vertically integrated range of in-house services including:

Specifically regarding the AquaBlade Blue, we can offer:


For non standard duties, membranes are available in other materials including EPDM, nitrile and polyurethane.

Aquatec Maxcon has established and maintains a dedicated service department for scheduled maintainence and breakdown services.

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