scholarly journals Introducing Life Cycle Assessment in Costs and Benefits Analysis of Vegetation Management in Drainage Canals of Lowland Agricultural Landscapes

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2236
Author(s):  
Elena Tamburini ◽  
Elisa Soana ◽  
Mauro Monti ◽  
Elisa Anna Fano ◽  
Giuseppe Castaldelli
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Nitrogen Removal ◽  
Environmental Sustainability ◽  
Aquatic Vegetation ◽  
Vegetation Management ◽  
Nitrate Pollution ◽  
Agricultural Landscapes ◽  
Costs And Benefits

Nitrate pollution remains an unsolved issue worldwide, causing serious effects on water quality and eutrophication of freshwater and brackish water environments. Its economic costs are still underestimated. To reduce nitrogen excess, constructed wetlands are usually recognized as a solution but, in recent years, interest has been raised in the role of ditches and canals in nitrogen removal. In this study, we investigated the environmental and economical sustainability of nitrogen removal capacity, using as a model study a lowland agricultural sub-basin of the Po River (Northern Italy), where the role of aquatic vegetation and related microbial processes on the mitigation of nitrate pollution has been extensively studied. Based on the Life Cycle Assessment (LCA) approach and costs and benefits analysis (CBA), the effectiveness of two different scenarios of vegetation management, which differ for the timing of mowing, have been compared concerning the nitrogen removal via denitrification and other terms of environmental sustainability. The results highlighted that postponing the mowing to the end of the vegetative season would contribute to buffering up to 90% of the nitrogen load conveyed by the canal network during the irrigation period and would reduce by an order of magnitude the costs of eutrophication potential.

scholarly journals Engineering Design Process of Face Masks Based on Circularity and Life Cycle Assessment in the Constraint of the COVID-19 Pandemic

2021 ◽  
Vol 13 (9) ◽  
pp. 4948
Author(s):  
Núria Boix Rodríguez ◽  
Giovanni Formentini ◽  
Claudio Favi ◽  
Marco Marconi
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Sustainability ◽  
Design Guidelines ◽  
New Device ◽  
Engineering Design Process ◽  
Life Cycle Perspective ◽  
Different Types ◽  
3D Printed ◽  
Negative Impacts

Face masks are currently considered key equipment to protect people against the COVID-19 pandemic. The demand for such devices is considerable, as is the amount of plastic waste generated after their use (approximately 1.6 million tons/day since the outbreak). Even if the sanitary emergency must have the maximum priority, environmental concerns require investigation to find possible mitigation solutions. The aim of this work is to develop an eco-design actions guide that supports the design of dedicated masks, in a manner to reduce the negative impacts of these devices on the environment during the pandemic period. Toward this aim, an environmental assessment based on life cycle assessment and circularity assessment (material circularity indicator) of different types of masks have been carried out on (i) a 3D-printed mask with changeable filters, (ii) a surgical mask, (iii) an FFP2 mask with valve, (iv) an FFP2 mask without valve, and (v) a washable mask. Results highlight how reusable masks (i.e., 3D-printed masks and washable masks) are the most sustainable from a life cycle perspective, drastically reducing the environmental impacts in all categories. The outcomes of the analysis provide a framework to derive a set of eco-design guidelines which have been used to design a new device that couples protection requirements against the virus and environmental sustainability.

scholarly journals Life Cycle Assessment and Judgement

NanoEthics ◽  
2020 ◽  
Vol 14 (3) ◽  
pp. 271-283
Author(s):  
Christopher Nathan ◽  
Stuart Coles
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Academic Community ◽  
Consumer Products ◽  
Free Inquiry ◽  
Technology Project ◽  
Lively Debate ◽  
Technology Product

AbstractIt has become a standard for researchers carrying out biotechnology projects to do a life cycle assessment (LCA). This is a process for assessing the environmental impact of a technology, product or policy. Doing so is no simple matter, and in the last decades, a rich set of methodologies has developed around LCA. However, the proper methods and meanings of the process remain contested. Preceding the development of the international standard that now governs LCA, there was a lively debate in the academic community about the inclusion of ‘values’ within the process. We revisit this debate and reconsider the way forward for LCA. We set out ways in which those outside of science can provide input into LCAs by informing the value assumptions at stake. At the same time, we will emphasize that the role of those within the scientific community need not (and sometimes, will inevitably not) involve value-free inquiry. We carry out this exploration through a case study of a particular technology project that sought ways to produce industrial and consumer products from algal oils.

The Role of Washing Machines in Life Cycle Assessment Studies

2009 ◽  
Vol 13 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Jonathan M. Cullen ◽  
Julian M. Allwood
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Washing Machines

scholarly journals A partial life cycle assessment approach to evaluate the energy intensity and related greenhouse gas emission in dairy farms

2013 ◽  
Vol 44 (2s) ◽  
Author(s):  
Lelia Murgia ◽  
Giuseppe Todde ◽  
Maria Caria ◽  
Antonio Pazzona
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Consumption ◽  
Milk Production ◽  
Environmental Sustainability ◽  
Greenhouse Gas Emission ◽  
Production Systems ◽  
Dairy Farms ◽  
Dairy Farming ◽  
Feeding Management

Dairy farming is constantly evolving towards more intensive levels of mechanization and automation which demand more energy consumption and result in higher economic and environmental costs. The usage of fossil energy in agricultural processes contributes to climate change both with on-farm emissions from the combustion of fuels, and by off-farm emissions due to the use of grid power. As a consequence, a more efficient use of fossil resources together with an increased use of renewable energies can play a key role for the development of more sustainable production systems. The aims of this study were to evaluate the energy requirements (fuels and electricity) in dairy farms, define the distribution of the energy demands among the different farm operations, identify the critical point of the process and estimate the amount of CO2 associated with the energy consumption. The inventory of the energy uses has been outlined by a partial Life Cycle Assessment (LCA) approach, setting the system boundaries at the farm level, from cradle to farm gate. All the flows of materials and energy associated to milk production process, including crops cultivation for fodder production, were investigated in 20 dairy commercial farms over a period of one year. Self-produced energy from renewable sources was also accounted as it influence the overall balance of emissions. Data analysis was focused on the calculation of energy and environmental sustainability indicators (EUI, CO2-eq) referred to the functional units. The production of 1 kg of Fat and Protein Corrected Milk (FPCM) required on average 0.044 kWhel and 0.251 kWhth, corresponding to a total emission of 0.085 kg CO2-eq). The farm activities that contribute most to the electricity requirements were milk cooling, milking and slurry management, while feeding management and crop cultivation were the greatest diesel fuel consuming operation and the largest in terms of environmental impact of milk production (73% of energy CO2-eq emissions). The results of the study can assist in the development of dairy farming models based on a more efficient and profitable use of the energy resources.

Role of the use phase and pavement-vehicle interaction in comparative pavement life cycle assessment as a function of context

2019 ◽  
Vol 230 ◽  
pp. 1156-1164 ◽  
Author(s):  
Xin Xu ◽  
Mehdi Akbarian ◽  
Jeremy Gregory ◽  
Randolph Kirchain
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Use Phase

Current limits of life cycle assessment framework in evaluating environmental sustainability – case of two evolving biofuel technologies

2013 ◽  
Vol 54 ◽  
pp. 215-228 ◽  
Author(s):  
Anne Holma ◽  
Kati Koponen ◽  
Riina Antikainen ◽  
Laurent Lardon ◽  
Pekka Leskinen ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Sustainability ◽  
Assessment Framework
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