Life Cycle Assessment of Biogas Production from Marine Macroalgae: a Latvian Scenario

The present study was conducted to evaluate the performance of existing sewage treatment plants (STPs) in Lucknow City of India. Currently, two STPs are operating in Lucknow, i.e., UASB reactor and FAB reactor, with total operating capacity of 345MLD and 56MLD, respectively. Since, the wastewater get mix with the domestic effluent while directing towards the STPs, therefore, the concentration of BOD is relatively very low, and hence the amount of biogas production by the UASB reactor is also reduced than its design value. Two approaches, evaluating the treatability performance and Life-Cycle Assessment (LCA) have been used to determine the plants efficiencies. All the results have been interpreted graphically. The results of this study conclude that the UASB reactor is better than the FAB, however in terms of LCA the FAB seems to be more reliable. Hydro Nepal; Journal of Water, Energy and Environment Vol. 12, 2013, January Page: 80-86DOI: http://dx.doi.org/10.3126/hn.v12i0.9039 Uploaded Date : 10/29/2013

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Environmental life cycle assessment of biogas production from marine macroalgal feedstock for the substitution of energy crops

Journal of Cleaner Production ◽

10.1016/j.jclepro.2016.08.041 ◽

2017 ◽

Vol 140 ◽

pp. 977-985 ◽

Cited By ~ 29

Author(s):

Funda Cansu Ertem ◽

Peter Neubauer ◽

Stefan Junne

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Biogas Production ◽

Energy Crops ◽

Environmental Life Cycle Assessment

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Life cycle assessment of biogas production through anaerobic co-digestion of nopal cladodes and dairy cow manure

Journal of Cleaner Production ◽

10.1016/j.jclepro.2017.11.180 ◽

2018 ◽

Vol 172 ◽

pp. 2313-2322 ◽

Cited By ~ 26

Author(s):

Félix Rafael Ramírez-Arpide ◽

Göksel N. Demirer ◽

Clemente Gallegos-Vázquez ◽

Guadalupe Hernández-Eugenio ◽

Vinicio Horacio Santoyo-Cortés ◽

...

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Dairy Cow ◽

Biogas Production ◽

Cow Manure ◽

Dairy Cow Manure

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Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence

Processes ◽

10.3390/pr9111875 ◽

2021 ◽

Vol 9 (11) ◽

pp. 1875

Author(s):

Jhessica Mosquera ◽

Carol Rangel ◽

Jogy Thomas ◽

Angelica Santis ◽

Paola Acevedo ◽

...

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Biogas Production ◽

Scale Up ◽

Pilot Scale ◽

Industrial Sector ◽

Potential Effect ◽

Organic Loading Rate ◽

Environmentally Sustainable ◽

Real Scale

This study evaluates the performance of different agricultural by-products to identify the potential effect of independent variables, using as the dependent variable the biogas production. A Box–Behnken experimental design was carried out in a pilot-scale plant of four stirred stainless-steel digesters under mesophilic semi-continuous digestion. The results obtained support the creation of a technical framework to scale up the process and further evaluation of the potential environmental impacts through life cycle assessment (LCA) methodology. A stable behaviour was achieved in 12 of the 13 experiments proposed. The highest value of daily biogas production was 2200.15 mL day−1 with a stabilization time of 14 days, an organic loading rate of 4 g VS feed daily, low C/N ratio and a 1:1 relation of nitrogen providers. The concentrations of CH4 remained stable after the production stabilization and an average biogas composition of 60.6% CH4, 40.1% CO2 and 0.3% O2 was obtained for the conditions mentioned above. Therefore, the real scale plant was estimated to manage 2.67 tonnes of residual biomass per day, generating 369.69 kWh day−1 of electricity. The LCA analysis confirms that the co-digestion process evaluated is a feasible and environmentally sustainable option for the diversification of the Colombian energy matrix and the development of the agro-industrial sector.

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Biogas to Fuel Cell State of The Art: A Review

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences ◽

10.37934/arfmts.86.1.87104 ◽

2021 ◽

Vol 86 (1) ◽

pp. 87-104

Author(s):

Shafini Mohd Shafie ◽

A Harits Nu'man ◽

Nik Nurul Anis Nik Yusuf

Keyword(s):

Life Cycle Assessment ◽

Fuel Cells ◽

Life Cycle ◽

Fuel Cell ◽

Energy Supply ◽

Biogas Production ◽

Electricity Consumption ◽

Cell System ◽

Energy Resources ◽

The Impact

Due to the emerging development in the energy industry, the demand for electricity consumption has sharply increased for each country. Therefore, a new recovery of energy resources is needed in consequence of the decreasing dependency on conventional energy resources, while sustaining energy security in the aspect of energy supply and climate change issues. The fuel cell is one of the most potential resources to be explored in order to overcome the constraints of the current energy generation. The aim of this paper is to discuss the entire cycle of the fuel cell system. It is starting from biogas production up to the recent studies related to life cycle assessment on fuel cell studies. Most of the researchers focused on the technical part of fuel cells; however, a comprehensive environmental assessment is essential to fully recognize the impact of fuel cells. Furthermore, this conceptual paper provided an idea on understanding the concept of fuel cell and referred to recently published articles related to life cycle assessment. Hopefully, this study can provide the guideline in determining the future energy for this country, in order to be less dependent on the current resources of energy supply.

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Life Cycle Assessment Analysis of Alfalfa and Corn for Biogas Production in a Farm Case Study

Processes ◽

10.3390/pr8101285 ◽

2020 ◽

Vol 8 (10) ◽

pp. 1285

Author(s):

Fabiola Filippa ◽

Francesco Panara ◽

Daniela Leonardi ◽

Livia Arcioni ◽

Ornella Calderini

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Anaerobic Digestion ◽

Greenhouse Gases ◽

Energy Production ◽

Fossil Fuels ◽

Biogas Production ◽

Life Cycle Assessment Study ◽

Energy Inputs

In the last years the greenhouse effect has been significantly intensified due to human activities, generating large additional amounts of Greenhouse gases (GHG). The fossil fuels are the main causes of that. Consequently, the attention on the composition of the national fuel mix has significantly grown, and the renewables are becoming a more significant component. In this context, biomass is one of the most important sources of renewable energy with a great potential for the production of energy. The study has evaluated, through an LCA (Life Cycle Assessment) study, the attitude of alfalfa (Medicago sativa) as “no food” biomass alternative to maize silage (corn), in the production of biogas from anaerobic digestion. Considering the same functional unit (1 m3 of biogas from anaerobic digestion) and the same time horizon, alfalfa environmental impact was found to be much comparable to that of corn because it has an impact of about 15% higher than corn considering the total score from different categories and an impact of 5% higher of corn considering only greenhouse gases. Therefore, the analysis shows a similar environmental load in the use of alfalfa biomass in energy production compared to maize. Corn in fact, despite a better yield per hectare and yield of biogas, requires a greater amount of energy inputs to produce 1m3 of biogas, while alfalfa, which requires less energy inputs in its life cycle, has a lower performance in terms of yield. The results show the possibility to alternate the two crops for energy production from an environmental perspective.

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