scholarly journals Mapping of building cycle waste for scenarios of industrial symbiosis

2021 ◽  
pp. 131-139
Author(s):  
Antonello Monsù Scolaro ◽  
Lia Marchi ◽  
Sara Corridori
Keyword(s):  
Environmental Impacts ◽  
Raw Materials ◽  
Geographical Location ◽  
Manufacturing Processes ◽  
Industrial Symbiosis ◽  
Process Innovations ◽  
Waste Production ◽  
Waste Valorisation ◽  
Product And Process ◽  
Definition Of

For years, the building sector has been marked by the progressive exploitation of raw materials and the growing production of waste. The product and process innovations, based on waste valorisation starting from their geographical location and identification, prefigure potential reductions of environmental impacts. This paper presents the methodology and findings of the mapping of waste from construction and manufacturing processes, carried out in Sardinia to identify possible scenarios of valorisation. The geographical location of waste production both in construction and manufacturing processes, along with their possible reuse, have allowed the definition of some supply chains which are able to process their own waste, according to industrial symbiosis scenarios.

scholarly journals Waste Valorization through Additive Manufacturing in an Industrial Symbiosis Setting

2020 ◽  
Vol 13 (1) ◽  
pp. 234
Author(s):  
Inês A. Ferreira ◽  
Radu Godina ◽  
Helena Carvalho
Keyword(s):  
Additive Manufacturing ◽  
Raw Materials ◽  
Industrial Processes ◽  
Environmental Concerns ◽  
Manufacturing Processes ◽  
Industrial Symbiosis ◽  
Waste Valorization ◽  
Mutual Benefit ◽  
Waste Streams ◽  
Final Sample

Given the current environmental concerns related to manufacturing, the introduction to the industrial symbiosis concept brought purpose to waste, instead of disposing it in landfills or eliminating it through incineration. The waste generated by industrial processes, or end-of-life products, is redirected to be used as a “new” input in another process by one or more organizations, which is a mutual benefit or a “symbiosis”. Despite its relevancy, the industrial symbiosis concept is marginally explored in the context of additive manufacturing; this emerging technology has disruptive potential regarding the use of different materials as secondary raw materials. This paper presents a systematic literature review regarding industrial symbiosis and additive manufacturing. The main objective is to identify how wastes can be used as input materials to additive manufacturing processes and what exchanges of resources occur in an industrial symbiosis setting. A final sample of 32 documents was reached and analyzed. Five examples of using waste streams in additive manufacturing processes to produce goods were highlighted and explored.

METHODOLOGICAL APPROACHES TO SEARCH FOR RESERVES OF DECREASING COSTS IN THE BRANCHES OF AGRICULTURAL PRODUCTION

2019 ◽  
Keyword(s):  
Agricultural Production ◽  
Raw Materials ◽  
Cost Calculation ◽  
Cattle Breeding ◽  
Method Of Calculation ◽  
Prime Cost ◽  
Dairy Cattle Breeding ◽  
Methodological Approaches ◽  
Definition Of ◽  
Qualitative Characteristics

In this article approaches to search for reserves of decrease in cost of agricultural production are considered. The methods of cost calculation of dairy cattle breeding products used at the studied enter-prise are analysed, short characteristic of the standard method offered by the Ministry of Agriculture is given, and calculations of alternative options are also carried out. Today creation of accounting of a production unit is very important so that not only weight units must be considered in it, but also the quali-tative structure of products must be reflected. Definition of qualitative characteristics and technological properties by production of milk which depend on use purposes can be an example. The raw materials consumption on a unit of production and its quality and also firmness of storage depends on technologi-cal properties of milk. At calculation of prime cost taking into account qualitative characteristics for cal-culation milk in terms of basic fat content undertakes. The method of calculation of prime cost consider-ing qualitative characteristics is the most expedient as prime cost of 1 c of milk unlike the operating tech-nique is lower. In the article analytical methods of reserves calculation for decrease in prime cost taking into account various factors are proved. The revealed reserves will allow an enterprise to expand its in-vestment opportunities in the future, they will give an additional incentive of modernization of the worn-out machinery and equipment in branches of agriculture.

scholarly journals End-of-Life Alternatives of Glass Reinforced Polyester Boat Hulls Compared by LCA

2018 ◽  
Vol 27 (4) ◽  
pp. 096369351802700 ◽  
Author(s):  
Mehmet Önal ◽  
Gökdeniz Neşer
Keyword(s):  
End Of Life ◽  
Environmental Impacts ◽  
Raw Materials ◽  
Weight Ratio ◽  
Cost Effective ◽  
Raw Material ◽  
Photochemical Oxidation ◽  
Human Toxicity ◽  
Vacuum Infusion ◽  
Infusion Method

Glass reinforced polyester (GRP), as a thermoset polymer composites, dominates boat building industry with its several advantages such as high strength/weight ratio, cohesiveness, good resistance to environment. However, proper recovering and recycling of GRP boats is became a current environmental requirement that should be met by the related industry. In this study, to propose in a cost effective and environmentally friendly way, Life Cycle Assessment (LCA) has been carried out for six scenarios include two moulding methods (namely Hand Lay-up Method, HLM and Vacuum Infusion Method, VIM) and three End-of-Life (EoL) alternatives(namely Extruding, Incineration and Landfill) for a recreational boat's GRP hulls. A case study from raw materials purchasing phase to disposal/recycling stages has been established taking 11 m length GRP boat hull as the functional unit. Analysis show that in the production phase, the impacts are mainly due to the use of energy (electricity), transport and raw material manufacture. Largest differences between the methods considered (HLM and VIM) can be observed in the factors of marine aquatic ecotoxicity and eutrophication while the closest ones are abiotic depletion, ozon layer depletion and photochemical oxidation. The environmental impact of VIM is much higher than HLM due to its higher energy consumption while vacuum infusion method has lower risk than hand lay-up method in terms of occupational health by using less raw material (resin) in a closed mold. In the comparison of the three EoL techniques, the mechanical way of recycling (granule extruding) shows better environmental impacts except terrestrial ecotoxicity, photochemical oxidation and acidification. Among the EoL alternatives, landfill has the highest environmental impacts except ‘global warming potential’ and ‘human toxicity’ which are the highest in extrusion. The main cause of the impacts of landfill is the transportation needs between the EoL boats and the licenced landfill site. Although it has the higher impact on human toxicity, incineration is the second cleaner alternative of EoL techniques considered in this study. In fact that the similar trend has been observed both in production and EoL phases of the boat. It is obvious that using much more renewable energy mix and greener transportation alternative can reduce the overall impact of the all phases considerably.

scholarly journals Process Modeling and Simulation of Tableting—An Agent-Based Simulation Methodology for Direct Compression

Pharmaceutics ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 996
Author(s):  
Niels Lasse Martin ◽  
Ann Kathrin Schomberg ◽  
Jan Henrik Finke ◽  
Tim Gyung-min Abraham ◽  
Arno Kwade ◽  
...  
Keyword(s):  
Raw Materials ◽  
Pilot Scale ◽  
Physical Models ◽  
Agent Based Simulation ◽  
Validation Data ◽  
Agent Based ◽  
Industrial Processing ◽  
Digital Twins ◽  
Product And Process ◽  
The Impact

In pharmaceutical manufacturing, the utmost aim is reliably producing high quality products. Simulation approaches allow virtual experiments of processes in the planning phase and the implementation of digital twins in operation. The industrial processing of active pharmaceutical ingredients (APIs) into tablets requires the combination of discrete and continuous sub-processes with complex interdependencies regarding the material structures and characteristics. The API and excipients are mixed, granulated if required, and subsequently tableted. Thereby, the structure as well as the properties of the intermediate and final product are influenced by the raw materials, the parametrized processes and environmental conditions, which are subject to certain fluctuations. In this study, for the first time, an agent-based simulation model is presented, which enables the prediction, tracking, and tracing of resulting structures and properties of the intermediates of an industrial tableting process. Therefore, the methodology for the identification and development of product and process agents in an agent-based simulation is shown. Implemented physical models describe the impact of process parameters on material structures. The tablet production with a pilot scale rotary press is experimentally characterized to provide calibration and validation data. Finally, the simulation results, predicting the final structures, are compared to the experimental data.

Bridging the Gender Gap in Employment Growth

2005 ◽  
Vol 6 (4) ◽  
pp. 259-273 ◽  
Author(s):  
Robert Strohmeyer ◽  
Vartuhi Tonoyan
Keyword(s):  
Gender Gap ◽  
Employment Growth ◽  
Occupational Sex Segregation ◽  
Feedback Effects ◽  
Know How ◽  
Process Innovations ◽  
Apprenticeship Training ◽  
Fields Of Study ◽  
Firm Innovativeness ◽  
Product And Process

Analysing 1,055 female- and 2,207 male-owned businesses in Germany, the authors found that the former underperformed compared with the latter in terms of employment growth and firm innovativeness. Controlling for endogeneity, ie feedback effects between employment growth and innovation, it was demonstrated that the lower employment growth in women-owned businesses was mainly due to women's lower commitment to product and process innovations, a phenomenon that is referred to in this study as the ‘female–male innovation gap’. The female–male innovation gap apparently goes back to occupational sex segregation, with women populating occupations and choosing fields of study or apprenticeship training that are less technical or technology-oriented and thus less likely to provide them with important resources (eg technical know-how) and favourable conditions needed for the development and implementation of product and process innovations.

International Supply Chains in APR

2015 ◽  
pp. 48-55
Author(s):  
V. Sokolov
Keyword(s):  
Supply Chains ◽  
Raw Materials ◽  
Computer Industry ◽  
Vertical Specialization ◽  
Industrial Countries ◽  
International Production ◽  
Computing Machinery ◽  
Labor Division ◽  
Definition Of ◽  
Made In China

The article considers the problem of international supply chains in machinery-building. The meanings of appropriate terms are specified (outsourcing, international production sharing, vertical specialization). It is clarified (following D. Hummels et al.) the definition of vertical specialization as a structure of supply chain when a country is using imported inputs to produce goods for exports. It is emphasized that countries exporting raw materials usually show high share of vertical specialization-based trade in their exports but not in imports. Developed industrial countries (excluding Japan) usually show high content of vertical specialization-based trade in both exports and imports. Statistical analysis of the intra-industry labor division in the office, accounting and computing machinery of Asia and Pacific is made. In China and Japan most inputs consumed by office, accounting and computing machinery are of domestic origin. The larger share of intermediate production of the office, accounting and computing machinery, consumed by the same branch, in China is of domestic origin, too. It means that a queue of successive components of supply chains is placed on the territory of China. At the same time, what concerns the territory of Korea assembling industries are prevailing. In USA and Japan the branch is using as inputs mostly intermediate production of domestic origin. Still, a larger fraction of the intermediate production of the computer industry itself is imported. In the four from five countries reviewed (USA, Japan, Republic of Korea, Thailand) the imported intermediate production for computer industry used by the respective industry as inputs is larger than the domestic production. This proves high degree of internationalization of this industry in Asia and Pacific.

Economic and geographical potential of the organization of new forms of economy in Jabrayil district

2021 ◽  
Vol 09 (04) ◽  
pp. 31-37
Author(s):  
Ləman Müşfiq qızı Həsənzadə ◽  
◽  
Tapdıq Güləhməd oğlu Həsənov ◽  
Keyword(s):  
Economic Geography ◽  
Regional Economy ◽  
Raw Materials ◽  
Geographical Location ◽  
Mineral Deposits ◽  
The Sustainable Development ◽  
Territorial Planning ◽  
External Relations ◽  
Global Transport ◽  
Effective Organization

One of the most urgent tasks of economic geography in the article is to ensure the sustainable development of the Jabrayil region on new foundations, whose economic and social facilities, which have been under occupation for many years, have been completely destroyed. The initial data collected on the objects destroyed in the area as a result of the analysis and their geographical location can be used as substantive information in the reconstruction activities of the district. As a result of the analysis, the existing potential in the region: favorable transport, new Zangilan and Fizuli centers in the neighborhood, sand, cement raw materials, fertile lands, canals, rivers, hydropower and solar resources will have a significant impact on the rehabilitation and development of farms. As a result of the research, the optimal centers for the location of "smart villages" in the region were identified. The article will focus on the development of local and global transport routes through the region, the use of local mineral deposits and the effective organization of internal and external relations. The information obtained as a result of the research will allow to build the perspective territorial planning of the regional economy on the basis of existing standards. Key words: consequences of occupation, advantages of reconstructed forms of economy, substantiation of centers, features of distribution in the area

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