Fatbergs; what you need to know
Date Published
What is a fatberg?
Fatbergs are massive accumulations of waste that have hardened and are blocking sewage systems throughout the country. These formations combine fats, oils, and grease (FOG) with items like discarded wet wipes, sanitary products, and disposable nappies that people have flushed down toilets.
How do fatbergs build up?
"The combination of the solidified FOG and the single use plastics build-up overtime underground. Eventually this amalgamates, solidifies and causes blockages to pipework and sewer systems."
How big can they get?
London's dense population and aging infrastructure have led to the most significant discoveries. In 2017, Thames Water identified a fatberg weighing 130 tonnes blocking pipes in Whitechapel—the largest ever documented in UK sewers.
How can we stop fatbergs forming?
Two primary sources contribute to fatberg development: household consumers and commercial kitchen operations.
The General public
The waterboards' message emphasizes: "Bin it, don't block it!"
- Wet wipes
- Sanitary products
- Cotton-buds
- Nappies
These single-use plastic items belong in waste bins rather than toilets, as they don't decompose like paper does in sewer systems.
Commercial kitchens
Businesses must legally manage their kitchen-generated fats, oils, and grease responsibly. Many commercial operations lack adequate grease management systems, allowing waste to enter water infrastructure and contribute to fatberg formation.
How can Grease Guru help?
Grease Guru supplies, installs, and maintains grease management systems for UK commercial operations, offering over 20 years of industry experience.