Microsoft Word - Environmental benefits of recycling 2010 update.doc

Study no 3 In study no 3, composting, anaerobic digestion and recycling of PLA are compared. Two types of recycling are consider ...

Table 47 Ranking of end-of-life options within each scenario for biopolymers Case Composting Recycling Incineration with energy ...

The results highlight large differences between the different cases. This is partly due to the fact that the studies do not all ...

11 31 22 12 11 11 2 22 ‐175% ‐150% ‐125% ‐100% ‐75% ‐50% ‐25% 0% 25% 50% 75% 100% 125% 150% 175% Relative difference with compos ...

Depletion of natural resources Compared to climate change, fewer cases take this indicator into account (five cases compared to ...

13 25 ‐175% ‐150% ‐125% ‐100% ‐75% ‐50% ‐25% 0% 25% 50% 75% 100% 125% 150% 175% Relative difference with composting according to ...

Energy demand Figure 29 shows that all cases assessed tend towards the similar conclusion, i.e. composting is the least preferab ...

13 12 311 1 ‐175% ‐150% ‐125% ‐100% ‐75% ‐50% ‐25% 0% 25% 50% 75% 100% 125% 150% 175% Relative difference with composting accord ...

Other indicators Acidification Recycling when assessed appears as the best option, except in study no 7. Indeed, the recycling s ...

Human toxicity Recycling and incineration are the preferable options. The degradation processes occurring in the case of compost ...

1 1 1 2 1 2 ‐175% ‐150% ‐125% ‐100% ‐75% ‐50% ‐25% 0% 25% 50% 75% 100% 125% 150% 175% Relative difference for climate change bet ...

Table 60 Influence of the carbon sequestration issue on the performances of landfill and composting regarding the climate change ...

Energy recovery In the case where some energy is recovered during the waste management stage, the production of energy from othe ...

11 31 22 12 11 11 2 22 ‐175% ‐150% ‐125% ‐100% ‐75% ‐50% ‐25% 0% 25% 50% 75% 100% 125% 150% 175% Relative difference with compos ...

3.4.4 Conclusion.............................................................................................................. C ...

3.5 Food and garden waste 3.5.1 Presentation The definition of ‘municipal food and garden waste’ is quite vague. It refers to th ...

Table 66 Materials included in the selected LCA studies Study Case Material 11[OR]Organic municipal waste 2[GW1] Garden waste 2[ ...

3.5.2 Comparison between the various end-of-life options The end-of-life options covered by the selected studies are:  Various ...

to food waste (due to the presence of wood), combined with the lower water content in garden waste, results in a higher heating ...

Table 68 Ranking of end-of-life options within each scenario for food and garden waste Case Composting Incineration with energy ...