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Showing result 1 - 5 of 75 essays matching the above criteria.

1. 1. Hunting Hotspots - A framework to assess the effectiveness of using environmentally extended input-output models as a method to identify CO2-eq hotspots in the upstream supply chain of a company

   University essay from Lunds universitet/LUCSUS

   Author : Elisa Anni Bauer; [2023]
   Keywords : GHG emissions; Effectiveness; Hotspot analysis; Environmentally Extended Input-Output; Sustainability Science; Social Sciences;

   Abstract : Industry’s indirect upstream greenhouse gas (GHG) emissions contribute significantly to climate change. To identify and reduce them, some companies conduct a hotspot analysis using an environmentally extended input-output (EEIO) model (often utilizing EXIOBASE database). READ MORE

3. 2. Life cycle assessment of metal laser powder bed fusion : A deep dive into the significance of system boundary expansion and improvement potential

   University essay from Linköpings universitet/Industriell miljöteknik

   Author : Christian Rotter; Erik Fagerberg; [2023]
   Keywords : additive manufacturing; life cycle assessment; powder bed fusion; system boundaries; metal laser powder bed fusion; environmental impact; global warming potential;

   Abstract : Metal additive manufacturing (MAM) is a manufacturing technology experiencing a rapid expansion rate. Metal laser powder bed fusion (ML-PBF) is among the most popular techniques in this field. The environmental implications of it are often discussed in literature and compared to conventional manufacturing. READ MORE

4. 3. Finding ways of optimizing coagulant dosage, for a more sustainable wastewater treatment process

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Hanna Sjöman; [2023]
   Keywords : Wastewater treatment process; coagulant dosage; COD; machine learning; water and environmental engineering; Technology and Engineering;

   Abstract : The wastewater treatment process at Oatly consists of several treatment steps of which, two are chemical treatment steps involving coagulation followed by flotation to remove phosphorous and COD. The coagulant dosage is mainly determined based on the operator’s experience and supported using results from jar tests. READ MORE

5. 4. Investigating food waste composition in school catering with focus on carbon footprint

   University essay from SLU/Dept. of Energy and Technology

   Author : Runa Halvarsson; [2023]
   Keywords : waste composition analysis; plate waste; climate impact; elementary schools; canteens;

   Abstract : Food waste has a great impact on the environment and generates approximately 3.3 giga tonnes of CO2-eq annually. The SDG 12.3 set by the UN, to halve the global per capita food waste by 2030, is one of the measures that strives to combat this problem. READ MORE

6. 5. Potential of local producing bioenergy/biogas from waste in the municipality of Ragunda

   University essay from Mittuniversitetet/Institutionen för naturvetenskap, design och hållbar utveckling (2023-)

   Author : Tomás Hayes; [2023]
   Keywords : Bioenergy; Biogas; Biomethane; Global Warming Potential; Rural development;

   Abstract : Population growth, climate change and increased global energy demand has led to the search for environment friendly energy sources. Ragunda Municipality’s major producers of Greenhouse Gas (GHG) emissions are transport, agriculture, and work machines. READ MORE