Life cycle assessment framework - DEMOWAS

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Goal and scope definitionModelling of a central wastewater treatment systemData:• EcoInvent report 2000 of swiss EcoInvent Centre• Functionel unit: 4 pe per yearHouseholdSewagenetworkSewagetreatmentplantSludgedisposalModel EcoInvent Report 2000Chair of Business Administration Environmental Management and Accounting slide 8
Inventory analysisComparison of the sizes of sewage treatment plants:capacityunitpe/aSize range1 2 3 4 5over 50.000- 10.000- 2.000-100.000 100.000 50.000 10.000 30-2000number ofplants number 40 45 192 262 428total capacity pe/a 9.329.000 3.201.000 4.774.000 1.394.000 345.000averagecapacity perplant pe/a 233.225 71.133 24.865 5.321 806lenght ofchannel km 583 242 109,4 30,3 6,13Average capacity of sewage treatment plant with corresponding network(Based on: DOKA, G. (2007), p. 2, 10Chair of Business Administration Environmental Management and Accounting slide 9
Page 1 and 2: Faculty of Business and Economics,
Page 3 and 4: Basics of life cycle assessmentLife
Page 5: gefundene StudienNumber of studiesR
Page 10: Goal and scope definitionAll Scenar
Page 13 and 14: ResultResult:ecological performance
Page 15 and 16: Goal and scope definitonResearch qu
Page 17 and 18: Goal and scope definitionProduct sy
Page 19 and 20: Goal and scope definitionLife cycle
Page 21 and 22: Inventory analysisProduction phase:
Page 23 and 24: Impact assessment and interpretatio
Page 25 and 26: Impact assessment and interpretatio
Page 27 and 28: Summary• No LCAs are facing the i

Life cycle assessment framework - DEMOWAS

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