Waste incineration has continued to grow in the UK and many other countries as a proportion of the total residual waste stream. It has to be accepted that it is a highly effective method to divert waste away from landfill, due to the fact that as a proportion of the original input tonnage, the ash residue is lower than just about any other option. But. at the same time though, the objections about incineration beingÂ inefficient, when all the parasitic loads from scrubbing are considered, plus worries about the disposal of the remaining hazardous substance which is the ash, and the generation of yet more waste in the form of the air-scrubber plant waste, are real.
“incineration has continued to grow … but worries are real…”
Gasification is much better. Gasification, when done well avoids the need for expensive clean up of the flue gases because so few contaminants are produced, and the process gas it produces whilst usually used to generate power so far, holds potential in so many ways as a product, and a potentiallyÂ important part of the much lauded “circular economy”. Unfortunately, in a climate which drew back from thoughts of any “innovative process” risk-taking at the start of the recession it looked for a while that gasification, as a waste treatment process, might never get a fair opportunity to prove itself.
“it looked for a while that gasification, as a waste treatment process, might never get a fair opportunity to prove itself”
That’s why the news this week from Energos that they have weathered the recession back into financial health and profitability should be seen as particularly welcome.
In their press release they state that:
Privately owned UK clean energy from waste specialistÂ Energos, headquartered in Warrington, UK, Â has powered up its profits and growth forecast according to its annual financial results (year ending 31 March 2014).
Profit before tax and interest for the past year was Â£1.62m and turnover rose to Â£8.86m, with the company forecasting further substantial improvements in both turnover and profit in the current financial year.
Nick Dawber, Managing Director ofÂ Energos, said:
“The financial crisis hampered our original plans, but we are now entering a phase of strong growth. We have returned to profitability this last year and expect to deliver increased profits during the current financial year. With Â£170 million worth of work in progress and more projects in the pipeline, we are already well into a plan to take on 25 more people this year in engineering, project management and operational roles.”
As an employer EnergosÂ also expects to increase itsÂ workforce twofold, in an expansion which it believes will quadruple its turnover over the comingÂ 18 months as it moves forward withÂ three multi-million pound facilities, which it calls “advanced conversion facilities”. If the termÂ “advanced conversion facilities” means nothing to you, then read-on as all becomes clear in their next statement that it means a combination of sustainable waste treatment technologies:
A 93,600 tonne facility, usingÂ EnergosÂ technology, Â at AmeyCespa’sÂ Â Milton Keynes Waste Recovery ParkÂ and 140,400 tonne plant at Viridor’s Â Glasgow Recycling and Renewable Energy CentreÂ Â are scheduled for completion in 2016, prior to commissioning and rigorous testing. Both facilities will process non recyclable, non hazardous household waste – as the final stage of an integrated three-step waste treatment process, also including recycling and anaerobic digestion.
Financial closure on a third facility usingÂ EnergosÂ advanced conversion technology, in Derby, is expected this summer.
If you have been following the European waste scene you will be aware that EnergosÂ has previously delivered eight waste fuelled advanced conversion facilities. These are located across Norway, Germany and the UK.
A further nineÂ “advanced conversion facilities”Â have been awarded planning permission forÂ EnergosÂ plants in the UK, and these are forÂ both public and private clients, including three in-house build-own-operate projects to be located in Knowsley, Irvine and Lisburn.
EnergosÂ also holds the accolade of being the first UK company to be awarded double Renewables Obligation Certificates (ROCs).
Now for some tech-speak to explain their process:
Its proven gasification process converts residual waste into a gas by using the heat of partial combustion to free hydrogen and carbon in the form of a synthetic gaseous fuel (syngas). The tightly controlled combustion of the syngas ensures complete and efficient combustion resulting in very low flue gas emissions.
These low emissions outperform EU Emissions Standard (2000/76/EC). As such,Â EnergosÂ facilities typically operate with NOx emissions as low as 25% of the EU limit, without any form of de-NOX system. At the same time CO and TOC emissions are also much lower than the limits and process stability is excellent.
Further information:Â www.energos.com