scholarly journals Use of Wastes of the Livestock Industry as a Possibility for Increasing the Efficiency of AIC and Replenishing the Energy Balance

2020 ◽  
Vol 9 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Inna Honcharuk
Keyword(s):  
Large Scale ◽  
Primary Energy ◽  
Raw Material ◽  
Biofuel Production ◽  
Efficient Production ◽  
Industrial Complex ◽  
State Budget ◽  
Global Trends ◽  
National Production ◽  
Total Primary Energy Consumption

AbstractThere are several reasons for the economic and social necessity in forming and developing the biofuels market of Ukraine, starting with energy security considerations, diversification of national production, support of innovations and ending with economic and social efficiency of biofuels market development on the basis of high motivation for the agrarian sector growth, positive social bias towards rural population growth and environmental security through renewable energy. The immediate prospect of energy autonomy for agro-industrial production should be based on efficient production and use of biomass. At present, biomass is the fourth largest fuel in the world, producing about 2 billion tonnes of conventional fuels per year, which is about 14% of the world’s total primary energy consumption. In some countries, this figure is even higher, but in Ukraine it still does not exceed 3%. This will help Ukraine reduce its dependence on energy imports, halt its transformation into a raw material appendage, and enable processing of such a large-scale resource while obtaining hundreds of thousands of jobs, income for the citizens and for the state budget. At this stage of state development, biofuel production is one of the determining catalysts for new global trends in Ukraine’s agro-industrial complex that will contribute to its sustainable development.

scholarly journals Modeling of construction waste processing system development

2018 ◽  
Vol 251 ◽  
pp. 02032 ◽  
Author(s):  
Pavel Oleinik ◽  
Tatyana Kuzmina ◽  
Viktor Zenov ◽  
Vitaliy Melnichuk
Keyword(s):  
Large Scale ◽  
System Development ◽  
Processing System ◽  
Data Bank ◽  
Production Equipment ◽  
Waste Utilization ◽  
Raw Material ◽  
Efficient Production ◽  
Waste Processing ◽  
Construction Waste

Construction waste is the most important source for reducing raw material resources. In this regard, many countries conduct large-scale research in developing progressive construction waste utilization technologies and creating highly efficient production equipment. Current experience in this field views the construction waste processing system as a number of interconnected subsystems: organizational and technical preparatory measures; waste collection and sorting; waste containerization, packaging and transportation; waste processing and manufacturing of recyclable resources. Each sub-system consists of a set of measures which characterize the change in material quality and properties. Modeling of the construction waste processing system addresses the task of assessing the actual level of the system and subsystems and determining the condition of the same within certain forecasted time perspectives. For this purpose, the cost vs. revenue comparison tools are used. To develop the construction waste processing system and maintain it in working condition it is important that, early on in the project, a waste classification catalogue and a relevant glossary of terms be compiled with all waste processing contractors having to agree to it and observe it. Also, a data bank containing all the relevant engineering and process documentation shall be drafted and maintained

scholarly journals Investigating the Effects of Water in Feedstock on the Energetic Efficiency of Producing Polyoxymethylene Dimethyl Ethers

2020 ◽  
Vol 10 (21) ◽  
pp. 7474
Author(s):  
Zhenwei Han ◽  
Chuanlei Fu
Keyword(s):  
Large Scale ◽  
Raw Material ◽  
Energetic Efficiency ◽  
Efficient Production ◽  
Important Research ◽  
Research Fields ◽  
Polyoxymethylene Dimethyl Ethers ◽  
Vapor Liquid Equilibria ◽  
Material Preparation ◽  
Water Contents

Large-scale eco-efficient production of polyoxymethylene dimethyl ethers (PODEn) has garnered wide attention as environmental-friendly diesel additives. Among the various PODEn research studies, the effect of water on the PODEn process is one of the most important research fields. In this work, the effects of water content in feedstock on the reboiler duty of the PODEn process were analyzed by rigorous simulation. To ensure the accuracy of the model, vapor–liquid equilibria (VLE) data of PODE2-H2O were measured and the model was regressed by using the experimental data. Furthermore, the production process consisting of raw material preparation section and PODEn synthesis section was evaluated by comparing it with the various water contents (0, 0.05, 0.10 and 0.15 g/g) in feedstock. We found the reboiler duty in the case of 0.10 g/g water in feedstock was lowest (77.99 MJ/kg), which is even lower than anhydrous case (100.24 MJ/kg). The results suggest that the water can be appropriately allowed in the production, which can reduce the reboiler duty of the PODEn.

Resource Recovery: The Contribution of Energy-From-Waste Plants

2012 ◽  
Author(s):  
Ralf Koralewska
Keyword(s):  
Large Scale ◽  
Bottom Ash ◽  
District Heating ◽  
Raw Material ◽  
Efficient Production ◽  
Conservation Of Resources ◽  
Key Factors ◽  
After Care ◽  
Recent Developments ◽  
Energy From Waste

Energy-from-Waste plants using grate-based systems have gained world-wide acceptance as the preferred method for the sustainable treatment of waste. Key factors are not only the reduction of waste volume and mass and the destruction or separation of pollutants but also the efficient production and use of energy (electricity, district heating/cooling, process steam), compliant disposal and the recovery of resources from combustion residues (e.g. metals, rare earths). International requirements relating to energy efficiency and materials recovery by means of thermo-recycling in Energy-from-Waste plants call for the continuing development and optimization of existing technologies and concepts. The technologies and processes for the recovery of reusable materials from dry-discharged bottom ash and from filter ash point to the key role that Energy-from-Waste plants are able to play in the efficient conservation of resources. It is primarily thermal treatment with dry discharge and subsequent processing of the bottom ash fractions that enables Energy-from-Waste plants to justify their status as universal recyclers. In addition to recovery of the energy inherent in the waste, the treatment of dry-discharged bottom ash is an important contribution to compliance with raw material and climate policies and to the promotion of closing the material cycle in general. Furthermore, dry bottom ash discharge represents a further step towards waste-free operation and “after-care-free” landfills. This paper documents the potential of Energy-from-Waste plants for the recovery of resources and provides examples of recent developments and large-scale implementations of innovative recovery technologies in Europe.

scholarly journals Modeling of construction waste processing system development

2018 ◽  
Vol 193 ◽  
pp. 05009 ◽  
Author(s):  
Pavel Oleinik
Keyword(s):  
Large Scale ◽  
System Development ◽  
Processing System ◽  
Data Bank ◽  
Production Equipment ◽  
Waste Utilization ◽  
Raw Material ◽  
Efficient Production ◽  
Waste Processing ◽  
Construction Waste

Construction waste is the most important source for reducing raw material resources. In this regard, many countries conduct large-scale research in developing progressive construction waste utilization technologies and creating highly efficient production equipment. Current experience in this field views the construction waste processing system as a number of interconnected subsystems: organizational and technical preparatory measures; waste collection and sorting; waste containerization, packaging and transportation; waste processing and manufacturing of recyclable resources. Each subsystem consists of a set of measures which characterize the change in material quality and properties. Modeling of the construction waste processing system addresses the task of assessing the actual level of the system and subsystems and determining the condition of the same within certain forecasted time perspectives. For this purpose, the cost vs. revenue comparison tools are used. To develop the construction waste processing system and maintain it in working condition it is important that, early on in the project, a waste classification catalogue and a relevant glossary of terms be compiled with all waste processing contractors having to agree to it and observe it. Also, a data bank containing all the relevant engineering and process documentation shall be drafted and maintained.

scholarly journals Energy Needs of the Agricultural Sector and the Potential for Addressing Them

2021 ◽  
Vol 29 (1) ◽  
pp. 95-113
Author(s):  
Inna Honcharuk ◽  
Keyword(s):  
Alternative Energy ◽  
Agricultural Sector ◽  
Agricultural Waste ◽  
The State ◽  
Animal Origin ◽  
Efficient Production ◽  
State Budget ◽  
Global Trends ◽  
Alternative Energy Sources ◽  
Stage Of Development

Agriculture has been considered as one of the priority countries’ sectors in our research; the share of agriculture in the GDP of the world leading countries was investigated. The theoretical and practical aspects of the development of non-waste agricultural production are described. The author substantiates the actuality and potential of the introduction of waste-free technology that brings advantages for the enterprises and for the state too. It is evaluated the assessment of international experience, which is the ability of agricultural waste to produce alternative energy sources. The theoretically available production potential of biogas and bioethanol from biomass of plant and animal origin has been calculated. The immediate prospect of energy autonomy of agro-industrial production should be based on efficient production and use of biomass. It will help Ukraine to lower dependence on import of energy carriers, will shut down its transformation to raw appendage, will enable to recycle inside a scale resource, having gained thus of hundred thousand of work stations, growth of incomes of citizens and state budget. Production of biofuel at the given stage of development of the state acts as one of the basic accelerants of new global trends in agribusiness industry of Ukraine which will promote its stable development.

Assessment of bioenergy development potential in agricultural enterprises

2020 ◽  
pp. 165-171
Author(s):  
Iryna Hryhoruk
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Agricultural Waste ◽  
General Structure ◽  
Geographical Location ◽  
Economic Assessment ◽  
Energy Resources ◽  
Industrial Complex ◽  
Renewable Energy Resources ◽  
Energy Potential

Exhaustion of traditional energy resources, their uneven geographical location, and catastrophic changes in the environment necessitate the transition to renewable energy resources. Moreover, Ukraine's economy is critically dependent on energy exports, and in some cases, the dependence is not only economic but also political, which in itself poses a threat to national security. One of the ways to solve this problem is the large-scale introduction and use of renewable energy resources, bioenergy in particular. The article summarizes and offers methods for assessing the energy potential of agriculture. In our country, a significant amount of biomass is produced every year, which remains unused. A significant part is disposed of due to incineration, which significantly harms the environment and does not allow earning additional funds. It is investigated that the bioenergy potential of agriculture depends on the geographical distribution and varies in each region of Ukraine. Studies have shown that as of 2019 the smallest share in the total amount of conventional fuel that can be obtained from agricultural waste and products suitable for energy production accounts for Zakarpattya region - 172.5 thousand tons. (0.5% of the total) and Chernivtsi region - 291.3 thousand tons. (0.9%). Poltava region has the greatest potential - 2652.2 thousand tons. (7.8%) and Vinnytsia - 2623.7 thousand tons. (7.7%). It should be noted that the use of the energy potential of biomass in Ukraine can be called unsatisfactory. The share of biomass in the provision of primary energy consumption is very small. For bioenergy to occupy its niche in the general structure of the agro-industrial complex, it is necessary to develop mechanisms for its stimulation. In addition, an effective strategy for the development of the bioenergy sector of agriculture is needed. The article considers the general energy potential of agriculture, its indicative structure. The analysis is also made in terms of areas. In addition, an economic assessment of the possible use of existing potential is identified.

The sugar and alcohol industry in the biofuels and cogeneration era: a paradigm change (part II)

2014 ◽  
pp. 97-104 ◽  
Author(s):  
Electo Eduardo Silv Lora ◽  
Mateus Henrique Rocha ◽  
José Carlos Escobar Palacio ◽  
Osvaldo José Venturini ◽  
Maria Luiza Grillo Renó ◽  
...  
Keyword(s):  
Large Scale ◽  
New Technologies ◽  
Process Integration ◽  
Animal Feed ◽  
Raw Materials ◽  
Biofuel Production ◽  
New Paradigm ◽  
Alcohol Industry ◽  
Feed Production ◽  
Steam Parameters

The aim of this paper is to discuss the major technological changes related to the implementation of large-scale cogeneration and biofuel production in the sugar and alcohol industry. The reduction of the process steam consumption, implementation of new alternatives in driving mills, the widespread practice of high steam parameters use in cogeneration facilities, the insertion of new technologies for biofuels production (hydrolysis and gasification), the energy conversion of sugarcane trash and vinasse, animal feed production, process integration and implementation of the biorefinery concept are considered. Another new paradigm consists in the wide spreading of sustainability studies of products and processes using the Life Cycle Assessment (LCA) and the implementation of sustainability indexes. Every approach to this issue has as an objective to increase the economic efficiency and the possibilities of the sugarcane as a main source of two basic raw materials: fibres and sugar. The paper briefly presents the concepts, indicators, state-of-the-art and perspectives of each of the referred issues.

scholarly journals Alien Wood Species as a Resource for Wood-Plastic Composites

2020 ◽  
Vol 11 (1) ◽  
pp. 44
Author(s):  
Sergej Medved ◽  
Daša Krapež Tomec ◽  
Angela Balzano ◽  
Maks Merela
Keyword(s):  
Wood Species ◽  
Dimensional Stability ◽  
Laser Scanning ◽  
Large Scale ◽  
Laser Scanning Microscopy ◽  
Raw Material ◽  
Confocal Laser ◽  
Alien Plant ◽  
Wood Plastic Composites ◽  
Plastic Composites

Since invasive alien species are one of the main causes of biodiversity loss in the region and thus of changes in ecosystem services, it is important to find the best possible solution for their removal from nature and the best practice for their usability. The aim of the study was to investigate their properties as components of wood-plastic composites and to investigate the properties of the wood-plastic composites produced. The overall objective was to test the potential of available alien plant species as raw material for the manufacture of products. This would contribute to sustainability and give them a better chance of ending their life cycle. One of the possible solutions on a large scale is to use alien wood species for the production of wood plastic composites (WPC). Five invasive alien hardwood species have been used in combination with polyethylene powder (PE) and maleic anhydride grafted polyethylene (MAPE) to produce various flat pressed WPC boards. Microstructural analyses (confocal laser scanning microscopy and scanning electron microscopy) and mechanical tests (flexural strength, tensile strength) were performed. Furthermore, measurements of density, thickness swelling, water absorption and dimensional stability during heating and cooling were carried out. Comparisons were made between the properties of six WPC boards (five alien wood species and mixed boards). The results showed that the differences between different invasive alien wood species were less obvious in mechanical properties, while the differences in sorption properties and dimensional stability were more significant. The analyses of the WPC structure showed a good penetration of the polymer into the lumens of the wood cells and a fine internal structure without voids. These are crucial conditions to obtain a good, mechanically strong and water-resistant material.

scholarly journals Bio-Flocculation Property Analyses of Oleaginous Microalgae Auxenochlorella protothecoides UTEX 2341

2021 ◽  
Vol 13 (5) ◽  
pp. 2885
Author(s):  
Jinyu Li ◽  
Baozhen Li ◽  
Jinshui Yang
Keyword(s):  
Large Scale ◽  
Municipal Wastewater ◽  
Biofuel Production ◽  
Microalgae Harvesting ◽  
Flocculation Efficiency ◽  
Oleaginous Microalgae ◽  
Freeze Dried ◽  
Flocculation Ability ◽  
Powder Samples ◽  
Auxenochlorella Protothecoides

The bio-flocculation ability of UTEX 2341 was studied for the purpose of improving microalgae harvesting efficiency to cut the high cost of biofuel production. The algae cells of UTEX 2341 cultured under heterotrophic and municipal wastewater conditions were found to have better self-flocculation ability, with flocculation rates of 92% and 85% at 2 h, respectively. Moreover, the flocculation rates of 16 freeze-dried microalgae powder samples cultured under different stress conditions were 0~72% with an algae powder dosage of 35 mg L−1. The flocculation efficiency of DIM, DCd1, DT28, and L6S was stable under different pH of 3~9 and temperatures of 15~50 °C. For samples of IM, LCd0.6, LMn2, and LZn2, the flocculation efficiency decreased or increased respectively with increased pH or temperatures. Though the flocculation properties of the eight samples showed wide differences, their flocculant compositions were almost the same with unknown components occupying large proportions. More studies needed to be further carried out to reveal the flocculation mechanisms and analyze the flocculation abilities in practical application, which would be conducive to future large-scale application of the bio-flocculation method and also cost reduction.

scholarly journals Scaling Up Delivery of Biofortified Staple Food Crops Globally: Paths to Nourishing Millions

2021 ◽  
pp. 037957212098250
Author(s):  
Jennifer K. Foley ◽  
Kristina D. Michaux ◽  
Bho Mudyahoto ◽  
Laira Kyazike ◽  
Binu Cherian ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Large Scale ◽  
Scale Up ◽  
Lessons Learned ◽  
Raw Material ◽  
Micronutrient Deficiencies ◽  
Seed Systems ◽  
Public And Private ◽  
Context Specific ◽  
Public And Private Sector

Background: Micronutrient deficiencies affect over one quarter of the world’s population. Biofortification is an evidence-based nutrition strategy that addresses some of the most common and preventable global micronutrient gaps and can help improve the health of millions of people. Since 2013, HarvestPlus and a consortium of collaborators have made impressive progress in the enrichment of staple crops with essential micronutrients through conventional plant breeding. Objective: To review and highlight lessons learned from multiple large-scale delivery strategies used by HarvestPlus to scale up biofortification across different country and crop contexts. Results: India has strong public and private sector pearl millet breeding programs and a robust commercial seed sector. To scale-up pearl millet, HarvestPlus established partnerships with public and private seed companies, which facilitated the rapid commercialization of products and engagement of farmers in delivery activities. In Nigeria, HarvestPlus stimulated the initial acceptance and popularization of vitamin A cassava using a host of creative approaches, including “crowding in” delivery partners, innovative promotional programs, and development of intermediate raw material for industry and novel food products. In Uganda, orange sweet potato (OSP) is a traditional subsistence crop. Due to this, and the lack of formal seed systems and markets, HarvestPlus established a network of partnerships with community-based nongovernmental organizations and vine multipliers to popularize and scale-up delivery of OSP. Conclusions: Impact of biofortification ultimately depends on the development of sustainable markets for biofortified seeds and products. Results illustrate the need for context-specific, innovative solutions to promote widespread adoption.

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