Aussies Tackle Fatbergs with New Coating Technology

Fatbergs are a growing problem for sewer systems worldwide, causing costly blockages and environmental damage. These congealed masses of fat, oil and grease (FOG), combined with flushed items such as wet wipes, clog pipelines and disrupt wastewater systems. Recent innovation by Australian engineers has offered a glimpse of a potential long-term solution – but everyday actions remain key to preventing fatbergs in the UK.

The Anti-Fatberg Innovation

Australian engineers at RMIT University have developed a new zinc and polyurethane coating designed to combat fatbergs by reducing calcium release in concrete sewer pipes. Calcium reacts with FOG to form solid deposits that accumulate in pipes, eventually causing blockages.

This novel coating can be applied to new or existing pipes at strategic points where slow or stagnant water increases the risk of fatberg formation, such as T-intersections or maintenance holes.

According to the study, the coating reduces calcium release by up to 80% and resists extreme conditions, including high temperatures up to 850°C. Additionally, the material features self-healing properties, enhancing durability and preventing corrosion.

While this coating offers promise as a long-term solution, the technology is still in the proof-of-concept phase and could take several years before commercial application.

Fatbergs: A Current Challenge

Fatbergs are not just an Australian problem. In the UK, water authorities face similar challenges, with fatbergs causing costly disruptions. And with this technology still in its developmental stages, more immediate action is needed to combat this issue

Their removal often involves labour-intensive processes, sometimes requiring drilling to break down hardened masses.

As promising as innovations like anti-fatberg coatings may be, the key to combating this issue remains prevention. Water authorities emphasise that most blockages are preventable with responsible habits.

How You Can Help Prevent Fatbergs

To reduce the risk of fatbergs forming in your local sewer system, follow these simple but effective steps:

1. Dispose of Fats, Oils, and Grease Properly

• Let fats, oils, and grease cool, then scrape them into a container and dispose of them with your general waste.
• Avoid pouring these substances down the sink, even if mixed with hot water or soap.

2. Bin It, Don’t Flush It

• Flushed wet wipes, even those labelled "flushable," contribute significantly to fatberg formation. Always dispose of wipes, cotton buds, and sanitary products in the bin.

3. Use Sink Strainers

• Install strainers in your kitchen sink to catch food particles and prevent them from entering the drain.

4. Raise Awareness

• Share knowledge about fatberg prevention with family, friends, and community members to encourage responsible behaviour.

Collaboration Between Innovation and Action

While technological advancements like anti-fatberg coatings offer hope for the future, the responsibility to maintain clear and functional drainage systems lies with all of us. By following simple preventative measures and making conscious choices, we can all contribute to reducing the risk of fatbergs and protecting our wastewater systems.

We hope you have found this information helpful and interesting. If you have any further questions you are always welcome to call our friendly team of experts on 01420 555600 or email [email protected]. 

Also, look out for more articles in our ongoing series of blog posts, bringing you useful information, insights, guides and tips on all things drainage!