scholarly journals Assessing New Biotechnologies by Combining TEA and TM-LCA for an Efficient Use of Biomass Resources

2020 ◽  
Vol 12 (9) ◽  
pp. 3676
Author(s):  
Giovanna Croxatto Vega ◽  
Juliën Voogt ◽  
Joshua Sohn ◽  
Morten Birkved ◽  
Stig Irving Olsen
Keyword(s):  
Environmental Performance ◽  
Energy Production ◽  
Economic Assessment ◽  
Regional Level ◽  
Multiple Criteria Decision Analysis ◽  
Economic Potential ◽  
European Regions ◽  
Different Types ◽  
Biomass Resources ◽  
Feedstock Availability

An efficient use of biomass resources is a key element of the bioeconomy. Ideally, options leading to the highest environmental and economic gains can be singled out for any given region. In this study, to achieve this goal of singling out an ideal technology for a given region, biotechnologies are assessed by a combination of techno-economic assessment (TEA) and territorial metabolism life cycle assessment (TM-LCA). Three technology variations for anaerobic digestion (AD) were assessed at two different scales (200 kW and 1 MW) and for two different regions. First, sustainable feedstock availability for two European regions was quantified. Then, the environmental impact and economic potential of each technology when scaled up to the regional level, considering all of the region’s unique sustainably available feedstock, was investigated. Multiple criteria decision analysis and internalized damage monetization were used to generate single scores for the assessments. Preference for the technology scenario producing the most energy was shown for all regions and scales, while producing bioplastic was less preferable since the value of the produced bioplastic plastic was not great enough to offset the resultant reduction in energy production. Assessing alternatives in a regional context provided valuable information about the influence of different types of feedstock on environmental performance.

scholarly journals Modelling Sustainable Industrial Symbiosis

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1172
Author(s):  
Hafiz Haq ◽  
Petri Välisuo ◽  
Seppo Niemi
Keyword(s):  
Life Cycle ◽  
Waste Management ◽  
Environmental Performance ◽  
Life Cycle Cost ◽  
Economic Assessment ◽  
Environmental Benefits ◽  
Industrial Symbiosis ◽  
Comprehensive Model ◽  
Network Connections

Industrial symbiosis networks conventionally provide economic and environmental benefits to participating industries. However, most studies have failed to quantify waste management solutions and identify network connections in addition to methodological variation of assessments. This study provides a comprehensive model to conduct sustainable study of industrial symbiosis, which includes identification of network connections, life cycle assessment of materials, economic assessment, and environmental performance using standard guidelines from the literature. Additionally, a case study of industrial symbiosis network from Sodankylä region of Finland is implemented. Results projected an estimated life cycle cost of €115.20 million. The symbiotic environment would save €6.42 million in waste management cost to the business participants in addition to the projected environmental impact of 0.95 million tonne of CO2, 339.80 tonne of CH4, and 18.20 tonne of N2O. The potential of further cost saving with presented optimal assessment in the current architecture is forecast at €0.63 million every year.

scholarly journals Environmental Performance Index: Regional Aspect

2018 ◽  
Vol 41 ◽  
pp. 02003
Author(s):  
Sergey Bereznev ◽  
Olga Zonova ◽  
Evdokiya Kulpina
Keyword(s):  
Performance Index ◽  
Environmental Performance ◽  
Efficiency Index ◽  
Environmental Indicators ◽  
Regional Level ◽  
Environmental Efficiency ◽  
Maximum Correlation ◽  
National System ◽  
Environmental Performance Index ◽  
Regional Aspect

The methodology of calculation of environmental performance index is considered in the article. The necessity of assessing the environmental efficiency index at the regional level in connection with which the authors attempted to adapt the indicators is proved; the recommendations on improving the national system of environmental indicators for the purpose of maximum correlation with the indicators of the environmental performance index are given.

scholarly journals ENERGY PRODUCTION FROM WASTES BY THERMAL GASIFICATION PROCESSES

2018 ◽  
Vol 16 (2) ◽  
pp. 158-165
Author(s):  
Paulo Brito
Keyword(s):  
Industrial Waste ◽  
Energy Production ◽  
Sustainable Energy ◽  
Industrial Wastes ◽  
Waste To Energy ◽  
Total Energy Consumption ◽  
Biomass Resources ◽  
Traditional Technologies ◽  
Technological Strategies ◽  
Production Problems

The sustainable energy will play a key role in the future of the planet, not only because in 20 years Biomass is expected to deliver around 30% of total energy consumption, but also because BioEnergy, produced mainly through combustion and gasification of agro-industrial waste, woody materials and forest crops, is expected to be fundamental for sustainable energy production. Problems related to the emissions of greenhouse gases, lack of fossil natural resources and the increasing price of fuels have progressively encouraged research and adoption of new technological strategies for energy production from renewable sources and application of waste-to-energy (WTE) concepts. Syngas obtained from gasification of biomass and industrial wastes constitutes an interesting resource for energy generation because it has lower impacts for the environment compared to traditional technologies and allows for the valorisation of waste residues as feedstock. This work presents the scope, potential and technologies related to the use of biomass resources with a focus on thermal gasification of wastes.

scholarly journals Dismantling of Waste Printed Circuit Boards with the Simultaneous Recovery of Copper: Experimental Study and Process Modeling

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5186
Author(s):  
Szabolcs Fogarasi ◽  
Árpád Imre-Lucaci ◽  
Florica Imre-Lucaci
Keyword(s):  
Environmental Performance ◽  
Printed Circuit Boards ◽  
Electrochemical Process ◽  
Circuit Boards ◽  
Electronic Components ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards ◽  
Different Types ◽  
Leaching Solution ◽  
The Impact

The study was carried out with the aim to demonstrate the applicability of a combined chemical–electrochemical process for the dismantling of waste printed circuit boards (WPCBs) created from different types of electronic equipment. The concept implies a simple and less polluting process that allows the chemical dismantling of WPCBs with the simultaneous recovery of copper from the leaching solution and the regeneration of the leaching agent. In order to assess the performance of the dismantling process, various tests were performed on different types of WPCBs using the 0.3 M FeCl3 in 0.5 M HCl leaching system. The experimental results show that, through the leaching process, the electronic components (EC) together with other fractions can be efficiently dismounted from the surface of WPCBs, with the parallel electrowinning of copper from the copper rich leaching solution. In addition, the process was scaled up for the dismantling of 100 kg/h WPCBs and modeled and simulated using process flow modelling software ChemCAD in order to assess the impact of all steps and equipment on the technical and environmental performance of the overall process. According to the results, the dismantling of 1 kg of WPCBs requires a total energy of 0.48 kWh, and the process can be performed with an overall low environmental impact based on the obtained general environmental indexes (GEIs) values.

scholarly journals Geographical and economic assessment of feedstock availability for biomass gasification in burkina faso

2021 ◽  
pp. 100163
Author(s):  
Fanta Barry ◽  
Marie Sawadogo ◽  
Igor W.K. Ouédraogo ◽  
Maiimouna Bologo Traoré ◽  
Thomas Dogot
Keyword(s):  
Burkina Faso ◽  
Economic Assessment ◽  
Biomass Gasification ◽  
Feedstock Availability

scholarly journals Nucleus, Mitochondrion, or Reticulum? STAT3 à La Carte

2018 ◽  
Vol 19 (9) ◽  
pp. 2820 ◽  
Author(s):  
Lidia Avalle ◽  
Valeria Poli
Keyword(s):  
Energy Production ◽  
Energy Homeostasis ◽  
Multiple Roles ◽  
Pharmaceutical Companies ◽  
Signal Transducer ◽  
Post Translational Modifications ◽  
Pathological Conditions ◽  
Different Types ◽  
Tumor Transformation ◽  
Context Specific

The transcription factor signal transducer and activator of transcription (STAT)3 mediates the functions of cytokines, growth factors, and oncogenes under both physiological and pathological conditions. Uncontrolled/constitutive STAT3 activity is often detected in tumors of different types, where its role is mostly that of an oncogene, contributing in multiple ways to tumor transformation, growth, and progression. For this reason, many laboratories and pharmaceutical companies are making efforts to develop specific inhibitors. However, STAT3 has also been shown to act as a tumor suppressor in a number of cases, suggesting that its activity is strongly context-specific. Here, we discuss the bases that can explain the multiple roles of this factor in both physiological and pathological contexts. In particular, we focus on the following four features: (i) the distinct properties of the STAT3α and β isoforms; (ii) the multiple post-translational modifications (phosphorylation on tyrosine or serine, acetylation and methylation on different residues, and oxidation and glutathionylation) that can affect its activities downstream of multiple different signals; (iii) the non-canonical functions in the mitochondria, contributing to the maintenance of energy homeostasis under stress conditions; and (iv) the recently discovered functions in the endoplasmic reticulum, where STAT3 contributes to the regulation of calcium homeostasis, energy production, and apoptosis.

scholarly journals Aboveground Carbon Storage in Coffee Agroecosystems: The Case of the Central Region of the State of Veracruz in Mexico

Agronomy ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 382
Author(s):  
Gustavo Celestino Ortiz-Ceballos ◽  
Mónica Vargas-Mendoza ◽  
Angel Isauro Ortiz-Ceballos ◽  
Martín Mendoza Briseño ◽  
Gustavo Ortiz-Hernández
Keyword(s):  
Central Region ◽  
Tree Species ◽  
The State ◽  
Regional Level ◽  
Carbon Density ◽  
Breast Height ◽  
C Storage ◽  
Different Types ◽  
Coffee Agroecosystems ◽  
Aboveground Carbon Storage

This study quantifies the aboveground C storage of coffee agroecosystems (AESs) present in the Xalapa–Coatepec region of the state of Veracruz, one of the most important coffee producing regions in Mexico. We identified and determined the spatial distribution of five different types of coffee AESs. Then, through the point-centered quarter method, we measured canopy coverage, total height, diameter at breast height and density of tree species at 160 randomly selected sampling sites. Using allometric models, we estimated the aboveground biomass and the stored aboveground C by tree species and type of AES; and finally, we scaled up our results at the regional level. We found out that the coffee AESs with the greatest and the lowest potential for storing aboveground C are coffee (Co) + talltrees (tree stratum mainly composed of species taller than 15 m) and Co + AcaciaInga (tree stratum mainly composed by Acacia pennatula), with a carbon density as 73.27 Mg C ha − 1 and 38.47 Mg C ha − 1 respectively. The 91.2% of the total aboveground C in the studied region is stored by two coffee AES types: Co + talltrees and Co + Inga (tree stratum composed by Inga sp.). The aboveground C storage potential of all five coffee AESs in the central region of Veracruz is 2.43 million Mg C with an average carbon density of 55.12 Mg C ha − 1 . These results assert that coffee AESs should be considered important C sinks that contribute to the adaptation and mitigation of climate change.

scholarly journals Methodology for assessing the environmental characteristics of various methods of generating electricity

2019 ◽  
Vol 140 ◽  
pp. 09001 ◽  
Author(s):  
Ekaterina Gryznova ◽  
Vadim Davydov ◽  
Yuri Batov ◽  
Valentin Dudkin ◽  
Danila Puz’ko ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Performance Indicators ◽  
Environmental Performance ◽  
Energy Production ◽  
Negative Impact ◽  
Environmental Efficiency ◽  
Electricity Production ◽  
Environmental Characteristics ◽  
Research Results ◽  
Advantages And Disadvantages

The article considers the energy efficiency of energy production from various types of fuel. The analysis of the negative impact of the use of various types of fuel on the environment. The most significant indicators for assessing the environmental efficiency of the use of fuel for electricity production are established. A comparison is made with the performance indicators that are currently used. The advantages and disadvantages are established. The necessity of developing a more effective methodology for assessing environmental performance is substantiated. A new methodology for assessing the environmental efficiency of using various methods for the production of electricity is proposed. Research results are presented.

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