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Separate Wet and Dry waste collection
Published on 17 January 2019
Spain
Andalucía
This is the good practice's implementation level. It can be national, regional or local.
About this good practice
Origin:
The organic fraction is, in some city areas, 50% of the total waste deposited in containers.
From 1994 onwards household waste is collected selectively, being separated at origin into four frctions: paper and cardboard and glass, collected weekly; and "wet" and "dry" fractions, collected daily.
Dry fraction contains all recyclbe materials and inerts, whih can be recovered by material in an appropriate treatment plant. Wet fraction contains organic waste which is turned into compost used for agricultural purposes
Development and Timescale:
The pilot test took place in a highly populated district and it was extended to whole city in 10 years
Financial framework:
• This type of collection costs 30% more than the average ordinary cost, and is calculated at €78/tonne (instead of €60/tonne).
• Furthermore, awareness raising campaigns are necessary to make the new model popular (around €30,000/year)
Use level: (%) or number of users
100% - 328,000 inhabitants of the city of Cordoba are users of the separation model.
Possible success factors:
Only 2 waste bins/containers needed in homes and on streets for collection of the main fractions.
High potential for recycling.
Work with different associations and civil groups, communication campaigns, wide distribution of 2-section recipients.
The organic fraction is, in some city areas, 50% of the total waste deposited in containers.
From 1994 onwards household waste is collected selectively, being separated at origin into four frctions: paper and cardboard and glass, collected weekly; and "wet" and "dry" fractions, collected daily.
Dry fraction contains all recyclbe materials and inerts, whih can be recovered by material in an appropriate treatment plant. Wet fraction contains organic waste which is turned into compost used for agricultural purposes
Development and Timescale:
The pilot test took place in a highly populated district and it was extended to whole city in 10 years
Financial framework:
• This type of collection costs 30% more than the average ordinary cost, and is calculated at €78/tonne (instead of €60/tonne).
• Furthermore, awareness raising campaigns are necessary to make the new model popular (around €30,000/year)
Use level: (%) or number of users
100% - 328,000 inhabitants of the city of Cordoba are users of the separation model.
Possible success factors:
Only 2 waste bins/containers needed in homes and on streets for collection of the main fractions.
High potential for recycling.
Work with different associations and civil groups, communication campaigns, wide distribution of 2-section recipients.
Resources needed
Resources required are the same as for the implementation of selective collection, mandatory in Spain since 1997. It is necessary to treat waste collection in a proper MBT plant to optimisize sorting recyclable materials.
Evidence of success
Increase of packaging recovered with regard to the average for Andalucia of 230 % from 2010 to 2014, from 7,2 to 23,8 kg/inhabitant/year.
Organic waste selective collection and its aerobic fermentation allows to produce good quality compost for agricultural purposes. Experiments to test effectiveness of compost applied on agricultural soils show an increase on productivity
Organic waste selective collection and its aerobic fermentation allows to produce good quality compost for agricultural purposes. Experiments to test effectiveness of compost applied on agricultural soils show an increase on productivity
Potential for learning or transfer
It is a simple system to transfer because it is easy-to –follow for citizens and there is no important investment required in containers in comparison with other selective waste collection system. However, it is essential to design MBT (mechanical-biological treatment) plant properly and keep ongoing campaing awareness.
Having only 4 fractions reduces collection costs and number of containers at streets. In addition to this, extra incomes for high material recovery rate allow to reduce waste taxes for citizens about 50%
Having only 4 fractions reduces collection costs and number of containers at streets. In addition to this, extra incomes for high material recovery rate allow to reduce waste taxes for citizens about 50%
Further information
Website
Good practice owner
You can contact the good practice owner below for more detailed information.
Organisation
Sanitation of Cordoba
Spain
Andalucía
Contact
Responsible for Environmental center of Cordoba