Gli sprechi ambientali ed economici causati dalla pratica dell’incenerimento The Environmental & Economic Waste Caused by Incineration Dr. Jeffrey Morris Sound Resource Management Olympia, Washington, USA 360-867-1033 [email protected] Analisi sul ciclo di vita Life Cycle Analysis (LCA) Energy Energy Energy Energy Raw Materials Energia Acquisition Materials Energia Manufacture Product Energia Manufacture Product Use or Energia Consumption Acquisizione Wastes materie & Pollution prime Materiali da Wastes & lavorazione Pollution Prodotti da Wastes & fabbricazione Pollution Prodotti da uso o consumo Energy Final Disposition – Landfill, Combustion, Energia Recycle or Reuse Collocamento finale in discarica, Wastes & combustione Pollution riciclaggio o riuso Reuse Rifiuti ed inquinamento Rifiuti ed inquinamento Rifiuti ed inquinamento Product Recycling Rifiuti ed inquinamento One or limited number of return cycles into product that is then disposed – open-loop recycling. Riuso Repeated recycling into same or similar product, keeping material from disposal – closed-loop recycling. Utilizzo di energia per prodotti da materia riciclata e materia vergine (MJ/Kg) Energy Use: Recycled & Virgin Content Products (MJ/kg) 300 28x Recycled Riciclata 250 Vergine Virgin 200 150 4x 8x 100 2x 50 0 2x 8x 1.3x Risparmio di energia: riciclaggio contro incenerimento (MJ/Kg) Energy Savings: Recycling versus Incineration (MJ/kg) 300 250 324x Recycling Riciclaggio Incenerimento Incineration 200 150 100 50 0 4x 3x 3x 3x 25x 30x Emissioni di CO2 per prodotti da materia riciclata e materia vergine (Kg eCO2/Kg) CO2 Emissions: Recycled &Virgin Content Products (kg eCO2/kg) 14 11x Recycled Riciclata 12 Vergine Virgin 10 8 4x 6 3x 4 8x 2 0 7x 3x 2x Emissioni di CO2: riciclaggio contro incenerimento (kg eCO2/kg) CO2 Emissions: Recycling versus Incineration (kg eCO2/kg) 4 2 0 -2 8x -4 1.3x 11x -6 -8 -10 -12 Recycling Riciclaggio Incenerimento Incineration Emissioni di CO2: compostaggio contro incenerimento (kg eCO2/kg) CO2 Emissions: Composting versus Incineration (kg eCO2/kg) 4 2 0 -2 10x 3x 15x -4 -6 -8 -10 -12 Composting Compostaggio Incenerimento Incineration Emissioni tossiche per prodotti da materia riciclata e materia vergine (Kg eToulene/Kg) Toxics Emissions: Recycled & Virgin Products (kg eToluene/kg) 9 8 4x Recycled Riciclata Vergine Virgin 7 6 8x 5 4 2x 3 2 5x 5x 1.2x 1 0 2x Emissioni tossiche: riciclaggio contro incenerimento (kg eToluene/kg) Toxics Emissions: Recycling vs. Incineration (kg eToluene/kg) 1 0 -1 -2 -3 -4 -5 Recycling Riciclaggio -6 Incenerimento Incineration -7 Emissioni tossiche: compostaggio contro incenerimento (kg eToluene/kg) Toxics Emissions: Composting vs. Incineration (kg eToluene/kg) 1 0 -1 -2 -3 -4 -5 -6 -7 Composting Compostaggio Incenerimento Incineration Emissioni EcoTossiche per prodotti da materia riciclata e materia vergine (Kg e2,4-D/Kg) EcoToxics Emissions: Recycled & Virgin Products (kg e2,4-D/kg) 0.05 0.045 17x Recycled Riciclata 0.04 Vergine Virgin 0.035 0.03 0.025 0.02 0.015 2x 0.01 0.005 0 2x 1.4x 2x 1.1x 2x Emissioni EcoTossiche: riciclaggio contro incenerimento (kg e2,4-D/kg) EcoToxics Emissions: Recycling vs. Incineration (kg e2,4-D/kg) 0.005 0 -0.005 -0.01 -0.015 -0.02 -0.025 -0.03 -0.035 -0.04 -0.045 Recycling Riciclaggio Incenerimento Incineration Emissioni EcoTossiche: compostaggio contro incenerimento (kg e2,4-D/kg) EcoToxics Emissions:Composting vs. Incineration (kg e2,4-D/kg) 0.005 0 -0.005 -0.01 -0.015 -0.02 -0.025 -0.03 -0.035 -0.04 -0.045 Composting Compostaggio Incenerimento Incineration Valore di mercato dei riclabili US Northwest (US$ per short ton) Market Value of Recyclables – US Northwest (US$ per short ton) $180.00 $160.00 $140.00 $120.00 $100.00 $80.00 $60.00 $88 $40.00 $64 $50 $20.00 $33 $0.00 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 Valore della riduzione di inquinamento grazie al riciclaggio e al compostaggio Value of Pollution Reductions from Recycling & Composting Discard Type Giornali Newspapers Environmental Value (US$/metric ton) $367 Cartone Cardboard 467 Mixed Paper Carta mista 172 Glass Containers Contenitori di vetro 61 PET Plastics Plastiche PET 712 Plastiche HDPE HDPE Plastics 310 Altre Otherplastiche Plastics 310 Aluminum Cans Lattine in alluminio 1,607 Ferrous Cans & Scrap Contenitori di ferro e rottami 17 Food Scraps Avanzi alimentari 62 Sfalci daGarden giardinoDebris e ramaglie Yard & 61 Carta compostabile Compostable Paper 52 References 1) 2) 3) 4) 5) 6) 7) Dijkgraaf, Elbert, and Herman R.J. Vollebergh, Burn or bury? A social cost comparison of final waste disposal methods, Ecological Economics 50(2004) 233-247. Morawski, Clarissa, The New “Eco-Currency”: New model monetizes environmental benefits and reveals new cost savings in waste diversion, Solid Waste & Recycling, December/January 2008. Morris, Jeffrey, Comparative LCAs for curbside recycling versus either landfilling or incineration with energy recovery, International Journal of Life Cycle Assessment 10 4 (2005) 273-284. Morris, Jeffrey, and Jennifer Bagby, Measuring environmental value for natural lawn and garden care practices, International Journal of Life Cycle Assessment (forthcoming in 2008). Morris, Jeffrey, Recycling versus incineration: An energy conservation analysis, Journal of Hazardous Materials 47 (1996) 277-293. Rand, T., J. Haukohl, U. Marxen, Municipal solid waste incineration: A decision maker’s guide, The World Bank: Washington, DC (June 2000). Sound Resource Management, The economics of recycling and recycled materials, The Clean Washington Center: Seattle, WA (June 1993). Costi netti delle discariche e dell’incenerimento Net Societal Costs of Landfill and Incineration Disposal Netherlands (Euros) Costs per Metric Ton Northwest US (US$) Landfill Incineration Inc +/(-) Lnd 40 103 63 Energy recovery revenue (4) (21) (17) Material recovery revenue 0 (3) (3) Net private costs 36 79 43 Gross Environmental Costs 26 46 20 Energy recovery offset (4) (22) (18) Material recovery offset 0 (6) (6) Net Environmental Costs 22 18 (4) (6) Net Societal Costs 58 97 39 51 - 85 Gross private costs Landfill Incineration Inc +/(-) Lnd 20 - 23 80 - 111 57 - 91