Life Cycle Carbon Footprint of Ethanol and Potassium Acetate Produced from a Forest Product Wastewater Stream by a Co-Located Biorefinery

2014 ◽  
Vol 2 (8) ◽  
pp. 1951-1958 ◽  
Author(s):  
Jifei Liu ◽  
David R. Shonnard
Keyword(s):  
Life Cycle ◽  
Carbon Footprint ◽  
Potassium Acetate ◽  
Forest Product ◽  
Wastewater Stream

scholarly journals A life cycle assessment framework for quantifying the carbon footprint of rural households based on survey data

MethodsX ◽  
2021 ◽  
pp. 101411
Author(s):  
Yechennan Peng ◽  
Liang Emlyn Yang ◽  
Jürgen Scheffran
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Survey Data ◽  
Carbon Footprint ◽  
Rural Households ◽  
Assessment Framework

scholarly journals Life-Cycle Assessment of Carbon Footprint of Bike-Share and Bus Systems in Campus Transit

2020 ◽  
Vol 13 (1) ◽  
pp. 158
Author(s):  
Sishen Wang ◽  
Hao Wang ◽  
Pengyu Xie ◽  
Xiaodan Chen
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Consumption ◽  
Carbon Footprint ◽  
Co2 Emission ◽  
Raw Material ◽  
Transit System ◽  
Two Systems ◽  
Bus System ◽  
Bike Share

Low-carbon transport system is desired for sustainable cities. The study aims to compare carbon footprint of two transportation modes in campus transit, bus and bike-share systems, using life-cycle assessment (LCA). A case study was conducted for the four-campus (College Ave, Cook/Douglass, Busch, Livingston) transit system at Rutgers University (New Brunswick, NJ). The life-cycle of two systems were disaggregated into four stages, namely, raw material acquisition and manufacture, transportation, operation and maintenance, and end-of-life. Three uncertain factors—fossil fuel type, number of bikes provided, and bus ridership—were set as variables for sensitivity analysis. Normalization method was used in two impact categories to analyze and compare environmental impacts. The results show that the majority of CO2 emission and energy consumption comes from the raw material stage (extraction and upstream production) of the bike-share system and the operation stage of the campus bus system. The CO2 emission and energy consumption of the current campus bus system are 46 and 13 times of that of the proposed bike-share system, respectively. Three uncertain factors can influence the results: (1) biodiesel can significantly reduce CO2 emission and energy consumption of the current campus bus system; (2) the increased number of bikes increases CO2 emission of the bike-share system; (3) the increase of bus ridership may result in similar impact between two systems. Finally, an alternative hybrid transit system is proposed that uses campus buses to connect four campuses and creates a bike-share system to satisfy travel demands within each campus. The hybrid system reaches the most environmentally friendly state when 70% passenger-miles provided by campus bus and 30% by bike-share system. Further research is needed to consider the uncertainty of biking behavior and travel choice in LCA. Applicable recommendations include increasing ridership of campus buses and building a bike-share in campus to support the current campus bus system. Other strategies such as increasing parking fees and improving biking environment can also be implemented to reduce automobile usage and encourage biking behavior.

Life-cycle assessment of climate change impact on time-dependent carbon-footprint of asphalt pavement

2021 ◽  
Vol 91 ◽  
pp. 102697
Author(s):  
Xiaodan Chen ◽  
Hao Wang ◽  
Radley Horton ◽  
Josh DeFlorio
Keyword(s):  
Climate Change ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Carbon Footprint ◽  
Climate Change Impact ◽  
Asphalt Pavement ◽  
Time Dependent ◽  
Change Impact

Life-cycle assessment of nonhazardous construction and demolition waste. Application of carbon footprint indicator

2020 ◽  
pp. 453-473
Author(s):  
Cristina Rivero-Camacho ◽  
Jaime Solís-Guzmán ◽  
Mª Desirée Alba-Rodríguez ◽  
Madelyn Marrero
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Carbon Footprint ◽  
Construction And Demolition Waste ◽  
Demolition Waste

scholarly journals Carbon Footprint and Related Production Costs of System Components of a Field-Grown Cercis canadensis L. ‘Forest Pansy’ Using Life Cycle Assessment

2013 ◽  
Vol 31 (3) ◽  
pp. 169-176 ◽  
Author(s):  
Dewayne L. Ingram ◽  
Charles R. Hall
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Carbon Footprint ◽  
Production System ◽  
Carbon Dioxide Emission ◽  
Ghg Emissions ◽  
International Standards ◽  
Production Costs ◽  
System Component ◽  
Cercis Canadensis

Life cycle assessment (LCA) was utilized to analyze the global warming potential (GWP), or carbon footprint, and associated costs of the production components of a field-grown, spade-dug, 5 cm (2 in) caliper Cercis canadensis ‘Forest Pansy’ in the Lower Midwest, U.S. A model production system was determined from interviews of nursery managers in the region. Input materials, equipment use and labor were inventoried for each production system component using international standards of LCA. The seed-to-landscape GWP, expressed in kilograms of carbon dioxide emission equivalent (CO2e), was determined to be 13.707. Equipment use constituted the majority (63%) of net CO2-e emissions during production, transport to the customer, and transplanting in the landscape. The model was queried to determine the possible impact of production system modifications on carbon footprint and costs to aid managers in examining their production system. Carbon sequestration of a redbud growing in the landscape over its 40 year life, weighted proportionally for a 100 year assessment period, was calculated to be −165 kg CO2e. The take-down and disposal activities following its useful life would result in the emission of 88.44 kg CO2e. The life-cycle GWP of the described redbud tree, including GHG emissions during production, transport, transplanting, take down and disposal would be −63 kg CO2e. Total variable costs associated with the labor, materials, and equipment use incurred in the model system were $0.069, $2.88, and $34.81 for the seedling, liner, and field production stages, respectively. An additional $18.83 was needed for transport to the landscape and planting in the landscape and after the 40 year productive life of the tree in the landscape, another $60.86 was needed for take-down and disposal activities.

scholarly journals An Investigation into the Environmental Impact of Product Recovery Methods to Support Sustainable Manufacturing within Small and Medium-Sized Enterprises (SMEs)

2012 ◽  
pp. 73-90
Author(s):  
Michaela R. Appleby ◽  
Chris G. Lambert ◽  
Allan E. W. Rennie ◽  
Adam B. Buckley
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Environmental Impact ◽  
Carbon Footprint ◽  
Sustainable Manufacturing ◽  
Product Recovery ◽  
Waste Hierarchy ◽  
Government Legislation ◽  
Lower Carbon ◽  
Recovery Methods

The effects of climate change and government legislation has changed the way in which manufacturers can dispose of their waste, encouraging SMEs to source alternative disposal methods such as those indicated in the waste hierarchy. It is economically and environmentally beneficial to use product recovery methods to divert waste from landfill. The environmental impact of two product recovery methods, remanufacturing and repairing, has been compared via a carbon footprint calculation for a UK-based SME. The calculation has identified that repairing has a lower carbon footprint than remanufacturing, however this only extends the original life-cycle of the product, whereas remanufacturing provides a new life-cycle and warranty, and therefore seen as the most preferable method of product recovery to support sustainable manufacturing.

scholarly journals Calculating the carbon footprint of the artisanal common hake fishery (Merluccius gayi gayi) in Caleta Portales, Valparaíso, Chile

2021 ◽  
Vol 49 (4) ◽  
pp. 538-550
Author(s):  
Laura Naranjo ◽  
Jorge Castillo ◽  
Valesca Montes ◽  
Eleuterio Yáñez
Keyword(s):  
Life Cycle ◽  
Carbon Footprint ◽  
Positive Impact ◽  
Environmental Issues ◽  
Iso 14040 ◽  
Greenhouse Gasses ◽  
Consumption Data ◽  
The World ◽  
Source Of Information ◽  
Hake Fishery

Society's awareness of environmental issues increases every day. In this context, the concept of carbon footprint (CF) arises as a calculation tool that quantifies greenhouse gasses (GHG) emitted during the life cycle (LC) of a product. This calculation method is used in many productive sectors throughout the world; however, the Chilean fisheries sector has not notified the use of this tool or initiatives in that sense. This study performs a calculation of the CF of artisanal gillnet hake (Merluccius gayi gayi) fishery of the Caleta Portales, located in Valparaíso, Chile. The ISO 14040: 2006 methodology was used. The analysis was limited from the boat departure until the catch is landed, as a gate-to-gate life cycle assessment (LCA). The fuel consumption data and information related to the fleet were used as the main source of information. The Caleta Portales hake landings were 1,340.484 kg in 2011 and 703,411 kg in 2012. This fleet released into the atmosphere in 2011, 0.47 CO2 equivalent per kg of hake landed, and 0.58 kg CO2 eq, in 2012. It is the first result of CF reported in a Chilean fishery. This result can lead to an increase in the competitiveness of this hake fishery, as it can generate a positive impact on encouraging consumers to prefer the consumption from those places that have calculated the CF and are less than other food products.

Product carbon footprint for product life cycle under uncertainty

2018 ◽  
Vol 187 ◽  
pp. 459-472 ◽  
Author(s):  
Bin He ◽  
Qijun Pan ◽  
Zhongqiang Deng
Keyword(s):  
Life Cycle ◽  
Carbon Footprint ◽  
Product Life Cycle ◽  
Product Life ◽  
Product Carbon Footprint
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