carbon footprint eco diaper
Post on 27-Jun-2015
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- 1. About the EcoDiaper The EcoDiaper is a new innovation to protect the environment from the big and continuously growing pollution of plastic. The disposable diaper as we know it is usually based on Polypropylene and Polyethylene. Those two plastic materials are very common in the plastic industry but unfortunately are they neither compostable nor based on renewable sources. With those two problem formulations has the creator of the EcoDiaper worked on a solution that can provide all mothers with a new disposable diaper that is both based on renewable sources and is compostable.
2. Global warming potential (GWP) is a measure of how much a given mass of greenhouse gas is estimated to contribute to global warming. It is a relative scale which compares the gas in question to that of the same mass of carbon dioxide (whose GWP is by convention equal to 1). Wikipedia.org 3. Raw materials Weight per diaper (g) GWP100 kg CO2 eq/kg polymer * Total GWP100 Cellulose 37,27 1,20 0,0447 Super Absorbent Polymers 11 3,70 0,0407 PLA 5,5 0,30 0,00165 Mater-Bi 3,71 0,30 0,001113 Hot melt 1,23 0,00 0,00 Polyethylene 1,12 2,60 0,00291 Filament yarn 0,15 0,00 0,00 Polypropylene 0,12 3,90 0,000468 Total 60,1 0,091579 KgCOeq/kWh 4. Emission GWP100 value (100 years) Total GWP100 per emission Total GWP100 for transport to retail CO 1 KgCOeq/tripCO 3 CH 25 Transport of components Distance Units Transportation RAUMACEL TCF Cellulose 2315 km Truck 2315km AHLSTROM SPUNBOND 2122 km Truck 2063,4 km/ train 58,6 km Polycart, Mater-Bi backsheet 137 km Truck TENOTEX TOPSHEET and Acquisition Layer 397 km Truck Koester closure tape 923 km Truck Pantex waist bands 394 km Truck Henkel hot melt 385 km Truck TISSUE 103 km Truck Frontal tape 389 km Truck SAP BASF 471 km Truck external box 4,5 km Truck Bags 273 km Truck Asahi Kasei elastic yarn 1212 km Truck 5. W.I.P. has developed and mounted a system that gathers all material that otherwise goes to waste at the production line. This wasted material is collected at two places on the production line. At one place all the unused pulp is gathered and is reused for the diaper production. The other place is where all the other wasted materials, pulp/SAP mix, PLA and paper are collected. Those by-products are sent to North Africa where they are recycled and used for diaper production for this region. The reason for sending these by-products to a diaper production in North Africa is to serve the African people with disposable diapers that are much cheaper than the regular disposable diapers that are available on this market. This is meant to be a help to African parents that otherwise do not have the economy to buy disposable diapers for their babies. The developing countries are not as far as the rest of the world in responsible disposal of household waste, therefore is it vital that this part of the world has the possibility to choose and use products that are environmental friendly. This way of recycling otherwise wasted material is why there is practically nothing that goes to waste from the production. W.I.P. produces app. 50.000 diapers per day and from that is generated app. 30 kg of waste output per day. These daily batches of 30 kg are divided into: 20 kg of mixed recyclables and 10 kg of pulp. 6. Raw materials Weight per bag (g) GWP100 kg CO2 eq/kg polymer Total GWP100 PLA XXX 0,30 XXXKgCOeq/packaging *Life Cycle Assessment of Disposable and Reusable Nappies in the UK", 2005, ISBN: 1-84-432427-3, The Environment Agency, Source: http://www.ahpma.co.uk/docs/LCA.pdf Raw materials Weight primary packaging per diaper (g) GWP100 kg CO2 eq/kg polymer Total GWP100 PLA XXX 0,30 XXXKgCOeq/diaper The primary packaging is a PLA-plastic bag with 25-30 diapers 7. Packaging material Weight (g) Total GWP100 KgCOeq/ Output Total GWP100 Associated packaging KgCOeq/ The GWP per 1 diaper from associated packaging 8. W.I.P. produces only diapers for infants and therefore is the dividing of the production line into activities not necessary. There are no questionable places in the assembly line regarding the use of energy for the product involved. Everything on this production site is driven by electrical power. Production line electrical power Premium packaging machine electrical power Metal detector electrical power Attached crane electrical power Air conditioning + recycling system electrical power Cardboard printer electrical power Plastic wrapping machine electrical power Crane lift electrical power The facilities do not contain any activities that are driven by other power source than electricity. 9. W.I.P is currently using a green power supplied by the company Enel. W.I.P. is working on a solution based on 30% Solar Panels and 70% Green Power. Enel has two green energy sources in Tuscany that are used for green energy supply in this region: - Hydro power and Geothermal power 10. Emission GWP100 value (100 years) Total GWP100 per emission kg/kWh Total GWP100 for the energy consumption of the W.I.P factory CO 1 44,0001 44,573 KgCOeq/kWh CH 25 0,000229 Emission GWP100 value (100 years) Total GWP100 per emission kg/kWh Total GWP100 for the energy consumption of the W.I.P factory Global Warming 1 46,866 46,866 KgCOeq/kWh Total GWP100 for combined geothermal power and solar panel Total GWP100 for combined hydropower and solar panels 11. Total distance IT-DK-SE (km) 2769 Total fuel consumed (liter) 791,143 (=664.56 kg) Emission GWP100 Total GWP100 per emission Total GWP100 for transport to retail CO 1 2086,72 2104,6 KgCOeq/tripCO 3 13.557 CH 25 4,320 Total GWP100 per one diaper Unit 0,0520 KgCOeq/diaper 12. Total distance IT-DK-SE (km) 2769 Total GWP100trip per one diaper by railway Unit 0,0012 KgCOeq/diaper 13. Stages of life cycle Total GWP100 Unit Acquisition and primary production of raw materials 0,091579 KgCOeq/diaper Transportation of raw materials KgCOeq/diaper Primary production of primary packaging KgCOeq/diaper Disposal of output from associated packaging KgCOeq/diaper Disposal of unusable waste from the production KgCOeq/diaper Energy consumption of the W.I.P. factory 45,720 KgCOeq/diaper Transport to retailers stores (by truck) 0,0520 KgCOeq/diaper Transport to retailers stores (by railway) 0,0012 KgCOeq/diaper 14. Total GWP100 from cradle to customer Unit KgCOeq/diaper Total GWP100 from cradle to customer (if road transport is used for distribution) Total GWP100 from cradle to customer (if railway transport is used for distribution) Total GWP100 from cradle to customer Unit KgCOeq/diaper 15. Stages of life cycle Total GWP100 for the EcoDiaper Total GWP100 for the commercial diaper Acquisition and primary production of raw materials 0,091579 KgCOeq/diaper 0,10787 KgCOeq/diaper 16. 0.08 0.085 0.09 0.095 0.1 0.105 0.11 1 EcoDiaper 1 Commercial diaper GlobalWarmingPotential(GWP) EcoDiaper VS Commercial diaper