Liquid waste services: in our regular blogs on grease trap cleaning and liquid waste services – we usually cover the negative impacts of not correctly maintaining your trap or of having a blockage somewhere in the water network – what is unpleasantly – but accurately called a fatberg! Mr Waster was thus pretty interested to hear that in the future grease trap waste and fatbergs could be used as a source of clean fuel to power our cities.


Waster is a real alternative for small and medium Aussie businesses – as we provide all waste and recycling service such as general waste bin hire, liquid waste services and recycling – all on flexible 30 day agreements with no lock in contracts.


Liquid waste services – could grease trap waste and fatbergs be a fuel source?

This interesting article on the BBC Future website raises just the scenario. Scientists propose using the fat and grease as a form of biofuel and are already trialling solutions of this kind. Quoting from the BBC article:


“In almost every city around the world huge congealed blobs of grease, oil and fat accumulate to form “fatbergs” that clog the sewers.”


“Among the largest to be uncovered publically was discovered last month in a stretch of Victorian sewer tunnels beneath Whitechapel in London. The 250m-long fatberg – twice the length of the football pitch at Wembley Stadium – weighed 130 tonnes and took nearly three weeks to clear. But rather than being dumped into landfill, the offending blockage was sent to an innovative processing plant to be transformed into 10,000 litres of biodiesel that can be used in buses and trucks.”

Liquid waste services cleaning

The process involves filtering the material, chemically altering the fat and then distilling it – the resultant output can be mixed in with diesel fuel and used in normal diesel engines (a bit like the biofuel mix that is now common in Australian service stations).


“Argent Energy’s plant currently receives around 30 tonnes of sewer fat from a single treatment works the city of Birmingham, England, each week, producing about 2,000 litres of fuel. But Posnett believes the plant could pump out up to 90 million litres of biodiesel a year when it is fully operational.”


This certainly is a very interesting development. It is common for cafes and restaurants in Australia to have their used cooking oil removed for free – with processes like the one above, is it possible that in the future – grease trap cleaning will be done for free or at subsidised rates?


See our blog on how a cafe can avoid grease trap issues.