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International Review of Waste Management Policy - Department of ...

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62.1.2 Summary <strong>of</strong> Results<br />

In addition to the variation in performance between the different MBT options - noted<br />

in FTC analysis and confirmed by the results <strong>of</strong> appraisal presented here - our<br />

analysis indicates there is considerable variation in the performance <strong>of</strong> the<br />

incineration facilities modelled within WRATE. This is shown in Table 62-3 which<br />

shows the two most favourable options against each <strong>of</strong> the assessment criteria, along<br />

with the worst performer in each case.<br />

Table 62-3: Summary <strong>of</strong> the Best and Worst Performers<br />

Abiotic Resource<br />

Depletion<br />

Global Warming<br />

Potential<br />

973<br />

<strong>International</strong> <strong>Review</strong> <strong>of</strong> <strong>Waste</strong> <strong>Policy</strong>: Annexes<br />

Performance Performance against against assess assessment assess ment crit criteria crit<br />

eria<br />

Best Best<br />

Second Second best best<br />

Worst<br />

Worst<br />

Arrowbio AD MBT Grimsby Incinerator Landfill<br />

Arrowbio AD MBT Chineham Incinerator Generic Aero MBT<br />

Human Toxicity Chineham Incinerator Generic AD MBT Dundee Incinerator<br />

Freshwater Aquatic<br />

Eco-toxicity<br />

Ecodeco MBT Arrowbio AD MBT<br />

Acidification Arrowbio AD MBT Ecodeco MBT<br />

Billingham<br />

Incinerator<br />

Billingham<br />

Incinerator<br />

Eutrophication Chineham Incinerator Ecodeco MBT Landfill<br />

Table 62-3 suggests that those facilities performing the most favourably against the<br />

six criteria are:<br />

� The Chineham incinerator;<br />

� The Arrowbio AD-based MBT and Ecodeco MBT facilities.<br />

The favourable performance <strong>of</strong> the Arrowbio AD-based MBT facility results from both<br />

the production <strong>of</strong> energy from biogas and the relatively high proportion <strong>of</strong> material<br />

recycled in comparison to the other MBT options.<br />

Whilst landfill is the least favourable option against two <strong>of</strong> the criteria, an incinerator<br />

is the worst performer in three. By contrast to the results generated within FTC’s<br />

analysis, there is little indication here that the thermal options operating in CHP mode<br />

are the most favourable – in the majority <strong>of</strong> cases the best performing incineration<br />

facility is one which generates electricity only.<br />

62.2 Limitations <strong>of</strong> the Life-cycle Assessment Approach<br />

The WRATE expert user license allows the user to carry out the life-cycle assessment<br />

<strong>of</strong> waste treatment technologies against a number <strong>of</strong> different assessment methods.

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