Waste Indicators

8 Glossary

8.1 Life-cycle terms
8.2 Indicator parameters
8.3 Waste terms

8.1 Life-cycle terms

LCA Life-cycle assessment. Statement of all inputs and outputs from manufacture, use and disposal of a product, a product system, a service or a process.
   
EDIP Environmental Development of Industrial Products. The first and largest Danish project on LCA method development – conducted by Institute for Product Development at the Danish Technical University.
   
EDIP PC tool The Danish Environmental Protection Agency’s computer programme for LCA statement cf. the EDIP method. Contains a number of process data from the EDIP project.
    
EDIP method Consists of statement of input/output quantities for a product as well as the three assessment stages: Characterisation, normalisation, weighting. For each stage, a factor is associated with resource consumption and emissions.
   
Characterisation Each resource is stated as the amount of raw material in the resource. In the characterisation emissions are divided into a number of categories according to environmental impact, such as global warming. An emission can contribute to several environmental impacts. All emissions with the same environmental impact are converted into a common unit, for example CO2 equivalents.

1 gram of methane gas, for example, is converted into having the same global warming effect as 25 g of CO2.
    

Normalisation For each resource and for all emissions the characterised amount is converted into person equivalents (PE) by relating the amount to annual consumption or emission for one person. Renewable resources are related to consumption per person in the local area (DK), whereas consumption of non-renewable resources is related to consumption per person in the world. For emissions to the surroundings global warming and ozone-depleting effect are related to emissions per person in the world, whereas other parameters are related to emissions per person in Denmark.  
    
Weighting Normalised values as a last assessment stage can be weighted. For resources weighting is made against supply perspective cf. statistics /36/. This means in practice that resource consumption is normalised in relation to total reserves in the world per person in the world instead of normalisation in relation to annual consumption per person in the world. The unit thereby becomes PR – person reserves. For emissions the normalised values are weighted with the politically decided reduction objectives in a certain year. Whereas there is reasonable consensus on the characterisation and normalisation stages, the weighting method is more debated, which is reflected in a number of methods developed under different LCA studies worldwide.
   
Allocation Means distribution and is used for distribution of environmental impact upon co-production of several products and for distribution of environmental impact on virgin and recycled materials when the material is covered by one or more recycling trips.
    
Loss of utility value Used in the EDIP for loss of quality upon recycling of a material. For example, paper fibres that are shortened every time paper is recycled. Loss of utility value is not identical to loss upon collection.

8.2 Indicator parameters

Resources In this project a collective measurement for raw material consumption stated in PR (see weighting). Resources are used in the EDIP context as a synonym to raw materials.
  
Primary energy Also called gross energy consumption. In this project primary energy consumption has been normalised to person equivalents in relation to Danish primary energy consumption per person in 1998. 1 kWh electricity (net) in calorimetric terms corresponds to 3.6 Mega joule. But in life-cycle statements 1 kWh electricity (net) corresponds to around 10 Mega joule (gross or primary energy), since a conversion and transmission loss takes place at the power plant. This is an important factor in all forms of energy conversion, but is particularly high in electricity generation.
    
Landfilling In this project waste quantities for landfilling stated in person equivalents in relation to Danish quantities of waste for landfilling per person in 1998.

8.3 Waste terms

Waste management
   
All forms of waste handling and treatment.
Energy recovery Incineration of waste with recovery of energy.
   
Recycling Material recovery where a material is reprocessed for use in new products that are not necessarily the same as the original products. Recycling does not cover energy recovery.
   
Reuse Upon reuse, a product is reused for its original purpose. For example reuse of beer bottles.
   
ISAG Danish Information System for Waste and Recycling. Came into use in Denmark in 1993. Its purpose is registration of sources and waste treatment option for some general waste fractions. Waste treatment enterprises report to the system.
    
EWC European Waste Catalogue. A list of waste drawn up under Council Directive 75/442/EEC on Waste. The list is not an exhaustive list of waste. Waste included in the list and marked in bold type is hazardous waste when criteria for hazardousness are complied with.