The Process Involves

1 -Collection - Waste is collected and brought to the incinerator site whete it is mixed to provide and even burn.

2 - Control - Sprays are used to keep dust and odours in the reception halls to a minimum.

3 - Processing - The waste is pulvesied and craned into hopper where it is then fed to the furnace.

4 - Incineration - The high temperatures (of around 1000°C) ensure complete combustion. The heat generated drives steam turbines and can be used to generate heat for community heating projects.

5 - Energy from Waste

6 - Incinerator Bottom Ash - This 'waste' product is utilised in teh construction industry.

This incinerator is located in the Isle of White and is operated by Sita. It shows that with inspired design what would otherwise be considered as an eyesore can become a landmark. The incinerator currently produces around 10% of the islands electrical requirement.

Case Study - Energy From Waste (EfW)

The agreed scope of work was initially identified to complete strategic analysis of the potential to implement Dry Anaerobic Digestion Technology at the at the two sites. This scope was redefined after site discussions with the client at the time of the site visit when it was agreed that the report feasibility study should reference activities at two specific identified site. The revised scope agreed was to evaluate at the higher level available and appropriate Energy from Waste technologies in order to appraise potential best strategic approach for delivery of existing and future waste disposal and treatment contracts.

In summary a robust approach to maximising energy generation and carbon dioxide emissions reduction is centred around implementation of up to three technology process types including Dry Anaerobic Digestion (AD) Fermentation, Wet AD and Biomass Combustion. If considered for project installation, identified technology processes would provide significant generation of revenue streams from incoming waste gate fees, export electricity and where applicable Renewable Obligation Certificates (ROC’s). Three recommended options were, at the higher level based on an initial assessment of recommended technology options against estimated future waste arisings.  Total revenues of £1.864 million could be achieved with a displacement of 9,346tonnes of carbon dioxide emissions a year.

An estimated capital cost of £6.7 million for Wet AD and ~£0.66 million for Wood Waste Biomass Boiler Implementation has been identified from initial feasibility and analysis.