2.3. UA for resource efficiency and waste management 2.3.2 Waste-to-resources: the potential uses of bio-waste Laure Vidal-Beaudet Agrocampus Ouest / Agreenium URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
2.3.5 Waste-to-resources: The potential uses of biowaste Plan • Urban system • Type of urban wastes • Ways of recycling • Potential uses of bio-waste for plant production 2 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of bio-waste Regulations The uses of compost must follow state regulations. In France regulations for organic amendment (NF U 44-051) and for growing media (NF U 44-551). A european rule in on the way (2019). The products must be conform to a compulsory standard - Raw materials allowed, - Thresholds for heavy metals (Cd, Cr, Cu, HG, Ni, Pb, Zn), micro-organims (Escherichia coli, Helminths eggs , …) Pathogens (salmonella and listeria monocytogenes) - Labelling requirement as pH and electrycal conductivity Population sanitary protection European regulations 3 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of bio-waste Urban soil characteristics photosynthesis × × Soil working Organic detritus Soil structure Fauna and micro-organisms Nutrients Water reservoir (from Canet et Schreiber, 2015) High mortality of urban vegetation Low fertility of soil 4 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of bio-waste Support for plant development as function of land uses 0 cm a 25 cm 50 cm b 75 cm Growth layer 100 cm Technical layer Structural layer c 125 cm substratum Support of traffic lanes Squares and parks Street trees Tramway Support of public building Extensive green roofs Intensive green roofs Common gardens Unep 2010 Industrial sites 5 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Constructed soil with great quantity of composts Soil of tramway Vidal-Beaudet L Vidal-Beaudet L Extensive green roof Vidal-Beaudet L Morel JL 6 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Constructed soil with great quantity of composts for squares and parks Fondation Louis Vuitton Paris Cité Internationale Lyon 2014 1998 2012 Vidal-Beaudet L Vidal-Beaudet L Florentaise Vidal-Beaudet L Vidal-Beaudet L Florentaise 7 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Constructed soil with great quantity of bio-waste for intensive green roof Roof of AgroParisTech Paris Montréal 8 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Soil with great quantity of composts for common gardens 60% of soils modified and with technogenic materials 9 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Soil with great quantity of composts for private gardens 60% of soils modified and with technogenic materials Bad control of organic matter inputs soil contamination and salinisation 10 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Constructed soil with great quantity of composts for street trees Since 2000 in France Mixture stone-soil = Soil improvement 65% v/v stones 40-90mm OM recycling 35% v/v soil and compost Mixture of soil and high level of organic matter Organic mulch Mixture of soil and stones 10 1,2 m m 3 Soil reconstitution for tree planting (Daunay, 1999) 11 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste Constructed soil with biowaste and mineral waste SITERRE program is funded by the French Environmental Agency (ADEME) and aims at developing an alternative approach by constructing fertile soils with urban wastes and by product dedicated to landscaping. Selection of Design of primary and Constructed functional soil secondary soil for planting with several materials layers PROCESS OF SOIL CONSTRUCTION 12 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
Potential uses of biowaste The city as a sustainable ecosystem Thermic regulation Local production Local Thermic regulation production Community production household waste 13 URBAN GReen Education for ENTteRprising Agricultural INnovation L. Vidal-Beaudet
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