21 February 2007

Inetec Offers Abrasive Drying Alternative to Anaerobic Digestion

From Inetec News Release:-

Inetec, a South Wales based company have developed a process which looks set to fulfil the needs of food producers by providing them with a sustainable system suitable for both food waste and non recyclable packaging waste.

This process, which has recently been recognised as a novel technology, is a mechanical process which breaks the waste down and produces an inert biomass fuel, called Food Derived Fuel or FDF for short, as a by product of the process.

It works by using a process called 'abrasive drying'.

The mixed waste is transferred into a vessel where it is macerated by a series of paddles.
As it is being churned it is gently heated from underneath.

The mixture of physical abrasion and heat initially exposes surface moisture and then after around 4 hours of processing cellular level moisture.

This is evaporated off as a vapour and is then condensed back into liquid for treatment or disposal to a foul sewer.

The resulting FDF has a high calorific, or energy value, of around 6-8KW hours per kilogram.
To put this into perspective wood is around 40% lower.

This stable biomass fuel can then be used for energy recovery.

In small scale applications it is often used as part of the processing installation on client sites.
It is typically used to generate steam or hot water by replacing the existing boiler requirements of the factory, thus displacing external energy requirements.

Because the high calorific value of the fuel it can result in huge cost savings to the company.

02 February 2007

£3bn Waste PFI will Include Anaerobic Digestion Plants

Viridor/Laing Selected as Preferred Bidder for Greater Manchester PFI Waste Contract
Viridor is delighted to announce that the Greater Manchester Waste Disposal Authority (GMWDA) today (29 January 2007) confirmed that it has selected the consortium between Viridor Waste Management and John Laing Infrastructure (a division of John Laing plc) as preferred bidder for the PFI contract to deliver long-term waste management solutions in Greater Manchester. The integrated waste management contract (investment value £300 million) with the Greater Manchester Waste Disposal Authority (GMWDA) is the largest such scheme in the UK.

The Viridor/Laing consortium proposals will assist GMWDA with their obligations under the EU Landfill Directive, achieving high levels of materials recycling and recovery and radically reducing the proportion of waste sent to landfill. Viridor/Laing will provide a full range of waste management services through the PFI mechanism, including waste reduction, recycling, composting, treatment, recovery and disposal.

GMWDA currently operates and manages the UK’s largest waste management contract, covering the recycling and disposal of waste from across the Greater Manchester area and dealing with over 1.4m tonnes of municipal waste each year.

According to the New Civil Engineer magazine, Authority Chairman Neil
Swannick said:

'Several MBT Plants using anaerobic digestion will be built. We want to make sure when we get to 2010 that we have got these facilities up and running because that is when the LATS targets become really
challenging.'

Comment: Things are looking good for Anaerobic Digestion!

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