scholarly journals Sustainable Steel Industry: Energy and Resource Efficiency, Low-Emissions and Carbon-Lean Production

Metals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1469
Author(s):  
Valentina Colla ◽  
Teresa Annunziata Branca
Keyword(s):  
Steel Industry ◽  
Manufacturing Industry ◽  
Raw Materials ◽  
Lean Production ◽  
Resource Efficiency ◽  
Effective Management ◽  
Steel Manufacturing ◽  
Management Of Resources ◽  
By Products

The three pillars of sustainability represented by the environment, economy and society in the steel manufacturing industry are directly connected to the efficient and effective management of resources, such as energy, raw materials, by-products and water [...]

scholarly journals Manufacturing Risk Identification in the Steel Industry

2020 ◽  
Vol 190 ◽  
pp. 00006
Author(s):  
Dharu Dewi ◽  
Imam Bastori ◽  
Arief Tris Yuliyanto ◽  
Karina Stankevica ◽  
Arnold Soetrisnanto
Keyword(s):  
Risk Management ◽  
Steel Industry ◽  
Nuclear Power ◽  
Manufacturing Industry ◽  
Risk Identification ◽  
Plant Construction ◽  
Management Objectives ◽  
Steel Manufacturing ◽  
Steel Material ◽  
Complex Project

The steel manufacturing industry is an inseparable part of the nuclear power plant construction project. This industry is a business full of dynamics, risks, and challenges. The implementation of risk management becomes an obligation that must be executed in managing this very complex project. In general, risk management in manufacturing includes steps to understand and identify potential problems that may occur, evaluate, monitor, and handle risks. The main risk management objectives are to prevent or minimize adverse effects due to unforeseen events through risk aversion or preparation of contingency plans related to those risks. This paper describes the identification of risk factors and assessments using the Boston Matrix. The results of the analysis show that unrealistic schedules, skill not appropriate, not available equipment, transportation barriers to the workshop, fluctuations in steel material prices, wrong specifications from owner, incorrect interpretation of specifications, misinterpretation of drawings, incorrect volume, material storage, wrong cutting, incorrect installation, and wrong order are factors with moderate and high risk.

scholarly journals Study of the Suitability of Different Types of Slag and Its Influence on the Quality of Green Grouts Obtained by Partial Replacement of Cement

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1166 ◽  
Author(s):  
Francisca Perez-Garcia ◽  
Maria Eugenia Parron-Rubio ◽  
Jose Manuel Garcia-Manrique ◽  
Maria Dolores Rubio-Cintas
Keyword(s):  
Steel Industry ◽  
Raw Materials ◽  
Steel Slag ◽  
Partial Replacement ◽  
Steel Manufacturing ◽  
Different Types ◽  
Furnace Slag ◽  
Slag Waste ◽  
Minimum Resistance

This paper is part of a research line focused on the reduction of the use of cement in the industry. In this work, the study of work methodologies for the manufacture of green cementitious grout mixtures is studied. Grout is widely used in construction and it requires an important use of raw materials. On the other hand, the steel industry faces the problem of the growing generation of slag wastes due to the increase in steel manufacturing. The green grout aims to achieve the dual objective of reducing the demand for cement and improve the slag waste valorization. Slag is not introduced as an aggregate but through the direct replacement of cement and no additives. The research seeks a product where we can use steel slag intensively, guaranteeing minimum resistance and workability. Results with substitutions between a 25% to 50% and water/cement ratio of 1 are presented. In particular, the suitability of different slags (two Ladle Furnace Slag (LFS) and one Blast Furnace Slag (GGBS)) in the quality of the final product are analyzed. The feasibility of replacing cement with slag and the importance of the origin and pretreatment are highlighted.

scholarly journals DEVELOPMENT OF RURAL AREAS ON THE BASIS OF «GREEN ECONOMY»

2021 ◽  
Author(s):  
Ilona Yasnolob ◽  
Yana Radionova ◽  
Eugen Bereznytsky
Keyword(s):  
Social Justice ◽  
Natural Resources ◽  
Rural Areas ◽  
Energy Production ◽  
Raw Materials ◽  
Resource Efficiency ◽  
Secondary Flows ◽  
Green Economy ◽  
Use Of Resources ◽  
By Products

The article provides a scientific and theoretical justification for the direction of sustainable development of rural areas on the basis of "green" economy. It is determined that the quantity, quality and scalability of indicators for measuring the "green" economy is still a new and narrow direction, focused mainly on the local level. With this in mind, effective and universal methods and tools (such as indicators) are needed to collect data that will help move towards a bioeconomic strategy, a green economy and a more sustainable future, including in rural areas. It is noted that a decentralized, sustainable and competitive approach to the transition to a "green economy" is based on network thinking and sustainable use of natural resources now and in the future. It is established that the concept of "green" economy is based on three paradigms: resource efficiency; ecosystem resilience; social justice. Resource efficiency is a way to achieve more from natural resources at lower cost, which increases the total economic value through more productive use of resources, taking into account their entire life cycle. The resilience of ecological systems is the number of disturbances that the system can absorb without changing areas of resilience. Stability is defined as the ability of a system to maintain its basic structure, function, and feedback. Social justice focuses on environmental, economic or social aspects. Social justice is fair access to resources and livelihoods. The main goals of the development of "green" economy for rural areas are studied: studying the potential of rural areas for food and energy production and identifying ways to convert surplus energy, food and other products into new products or services; identifying potential for synergies in the use of by-products of food production and studying their suitability for the production of other products; incompatible by-products are sent directly to production or reused as bioenergy raw materials; study the possibilities of using secondary flows (for example, processing residues) of municipal energy production, and, for example, their use as nutrients in the production of raw materials; exploring new energy sources, independent of biomass, that could be used for own energy production in rural areas (eg, solar and hydro).

scholarly journals Wine By-Products as Raw Materials for the Production of Biopolymers and of Natural Reinforcing Fillers: A Critical Review

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 381
Author(s):  
Alessandro Nanni ◽  
Mariafederica Parisi ◽  
Martino Colonna
Keyword(s):  
Critical Review ◽  
Raw Materials ◽  
Green Revolution ◽  
Building Blocks ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Reinforcing Fillers ◽  
Plastic Industry ◽  
Review Reports ◽  
By Products

The plastic industry is today facing a green revolution; however, biopolymers, produced in low amounts, expensive, and food competitive do not represent an efficient solution. The use of wine waste as second-generation feedstock for the synthesis of polymer building blocks or as reinforcing fillers could represent a solution to reduce biopolymer costs and to boost the biopolymer presence in the market. The present critical review reports the state of the art of the scientific studies concerning the use of wine by-products as substrate for the synthesis of polymer building blocks and as reinforcing fillers for polymers. The review has been mainly focused on the most used bio-based and biodegradable polymers present in the market (i.e., poly(lactic acid), poly(butylene succinate), and poly(hydroxyalkanoates)). The results present in the literature have been reviewed and elaborated in order to suggest new possibilities of development based on the chemical and physical characteristics of wine by-products.

scholarly journals Anti-Fatigue Effect of a Dietary Supplement from the Fermented By-Products of Taiwan Tilapia Aquatic Waste and Monostroma nitidum Oligosaccharide Complex

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1688
Author(s):  
Ying-Ju Chen ◽  
Chun-Yen Kuo ◽  
Zwe-Ling Kong ◽  
Chin-Ying Lai ◽  
Guan-Wen Chen ◽  
...  
Keyword(s):  
Dietary Supplement ◽  
Exercise Performance ◽  
Physical Training ◽  
Raw Materials ◽  
Weight Bearing ◽  
Nitrogen Concentration ◽  
Lactate Concentration ◽  
Fatigue Effect ◽  
Monostroma Nitidum ◽  
By Products

The Taiwan Tilapia is an important aquaculture product in Taiwan. The aquatic by-products generated during Tilapia processing, such as fish bones and skin, are rich in minerals and protein. We aimed to explore the effect of a dietary supplement, comprising a mixture of fermented Tilapia by-products and Monostroma nitidum oligosaccharides as the raw materials, combined with physical training on exercise performance and fatigue. We used a mouse model that displays a phenotype of accelerated aging. Male senescence-accelerated mouse prone-8 (SAMP8) mice were divided into two control groups—with or without physical training—and supplemented with different doses (0.5 times: 412 mg/kg body weight (BW)/day; 1 time: 824 mg/kg BW/day; 2 times: 1648 mg/kg BW/day) of fermented Tilapia by-products and Monostroma nitidum oligosaccharide-containing mixture and combined with exercise training groups. Exercise performance was determined by testing forelimb grip strength and with a weight-bearing exhaustive swimming test. Animals were sacrificed to collect physical fatigue-related biomarkers. Mice dosed at 824 or 1648 mg/kg BW/day showed improvement in their exercise performance (p < 0.05). In terms of biochemical fatigue indicators, supplementation of 824 or 1648 mg/kg BW/day doses of test substances could effectively reduce blood urea nitrogen concentration and lactate concentration and increase the lactate ratio (p < 0.05) and liver glycogen content post-exercise (p < 0.05). Based on the above results, the combination of physical training and consumption of a dietary supplementation mixture of fermented Tilapia by-products and Monostroma nitidum oligosaccharides could improve the exercise performance of mice and help achieve an anti-fatigue effect.

scholarly journals Modeling the Supply Process Using the Application of Selected Methods of Operational Analysis

2017 ◽  
Vol 7 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Mária Chovancová ◽  
Vladimír Klapita
Keyword(s):  
Inventory Management ◽  
Economic Efficiency ◽  
Raw Materials ◽  
Service Level ◽  
Effective Management ◽  
Operational Analysis ◽  
Intermediate Products ◽  
The Subject

AbstractSupply process is one of the most important enterprise activities. All raw materials, intermediate products and products, which are moved within enterprise, are the subject of inventory management and by their effective management significant improvement of enterprise position on the market can be achieved. For that reason, the inventory needs to be managed, monitored, evaluated and affected. The paper deals with utilizing the methods of the operational analysis in the field of inventory management in terms of achieving the economic efficiency and ensuring the particular customer’s service level as well.

Optimization of Inexpensive Agricultural By-Products as Raw Materials for Bacitracin Production in Bacillus licheniformis DW2

2017 ◽  
Vol 183 (4) ◽  
pp. 1146-1157 ◽  
Author(s):  
Qin Wang ◽  
Hui Zheng ◽  
Xia Wan ◽  
Hongfeng Huang ◽  
Junhui Li ◽  
...  
Keyword(s):  
Bacillus Licheniformis ◽  
Raw Materials ◽  
By Products

Utilization of Porcelain Tile Polishing Residue

2021 ◽  
Vol 410 ◽  
pp. 699-703
Author(s):  
Valeriya È. Shvarczkopf ◽  
Irina A. Pavlova ◽  
Elena P. Farafontova
Keyword(s):  
Glassy Phase ◽  
Raw Materials ◽  
Foam Glass ◽  
Mixture Preparation ◽  
Cleaning Equipment ◽  
Oil Paints ◽  
Roofing Materials ◽  
Sodium Feldspar ◽  
By Products ◽  
Porcelain Tile

The research focuses on the properties of by-products formed in the production of porcelain stoneware: polishing residue and residue of the mixture-preparation shop. The polishing residue consists of glassy phase (80%), quartz (14%), mullite (5%). Residue of the mixture-preparation shop consists of quartz (~ 18%), muscovite (~ 6.9%), kaolinite (~ 20.5%), calcium-sodium feldspar (~ 51.4%), diopside (~ 2.98%). Polishing residue occurs when polishing porcelain stoneware to create a glossy surface and when polishing the side faces of porcelain stoneware to obtain accurate tile geometry. The particle size of the polishing residue is less than 0.2 mm, and the residue of the mixture-preparation shop is less than 40 microns. Residue of the mixture-preparation shop is formed when cleaning equipment: mills, mixers, slipways, etc. The ways of utilization of by-product are follows: as a filler for the silicate production; for polymer-cement, water-dispersion and oil paints; as a filler for the production of roofing materials, bituminous roofing mastics based on organic binders; raw materials for the production of foam glass materials and products.

Ressourceneffizienz durch Digitalisierung*/Resource efficiency through digitisation. Potentials for SMEs in the manufacturing industry

2018 ◽  
Vol 108 (05) ◽  
pp. 319-324
Author(s):  
I. Bogdanov ◽  
A. Nuffer ◽  
A. Sauer
Keyword(s):  
Manufacturing Industry ◽  
State Of The Art ◽  
Manufacturing Sector ◽  
Resource Efficiency ◽  
Digitale Transformation ◽  
Case Study Analysis ◽  
Current State ◽  
Stand Der Technik ◽  
A Current

Der vorliegende Beitrag behandelt den Themenkomplex Ressourcen-effizienz und digitale Transformation im verarbeitenden Gewerbe sowie die dabei entstehenden Wechselwirkungen. Neben dem aktuellen Stand der Technik werden die im Rahmen einer aktuellen Studie durchgeführte Fallbeispielanalyse und die entwickelte Methodik zur Ermittlung der Ressourceneffizienzpotenziale vorgestellt. Diese Potenziale und die eingesetzten digitalen Maßnahmen sind zentrale Bausteine des vorliegenden Beitrags. &nbsp; This article deals with the topic complex of resource efficiency and digital transformation in the manufacturing sector as well as the resulting interactions. In addition to the current state of the art and perspectives, the case study analysis carried out as part of a current study, as well as the developed method for establishing the resource efficiency potentials will be presented. The resultant potential and the digital measures are central components of this article.

Sign in / Sign up

Export Citation Format

Share Document