scholarly journals Influence of the Type of Aggregate from Industrial Waste on Corrosion Resistance of Modified Fine-Grained Concrete

Buildings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 352
Author(s):  
Ljajsjan Zajceva ◽  
Ekaterina Lucyk ◽  
Tat’jana Latypova ◽  
Valerij Latypov ◽  
Pavel Fedorov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Industrial Waste ◽  
Raw Materials ◽  
Mineral Wool ◽  
Concrete Mixture ◽  
Green Technologies ◽  
Widespread Application ◽  
Waste Products ◽  
Natural Resource Conservation ◽  
Use Of Resources

The development and implementation of “green” technologies in the construction sector, which ensure natural resource conservation, reduce harmful emissions and provide utilization of industrial waste, are key issues in material engineering of the XXI century. Extensive research has been devoted to solving these issues, including research in the field of concrete science. Still, the issue of developing concrete compositions with increased corrosion resistance remains much less studied. At the same time, reactive aggregates from industrial waste can have positive effect on durability of concrete, and the best result can be achieved by means of modification of a concrete mixture with highly effective additives. The article presents the research data in two lines—the study of applicability of reactive aggregates from waste products of nonmetallic and ceramic industries, mineral wool production and concrete scrap for production of corrosion-resistant concretes, as well as the assessment of possibility of Portland cement quantity reduction in a concrete mixture on local raw materials due to the introduction of additives based on polycarboxylates. The article presents the research evidence of the effect of dust and clay particles content on the quality of concrete with a polycarboxylate additive. The article describes the studies of corrosion resistance of concrete samples based on production wastes in sulfate environments and under the influence of carbon dioxide. The developed concrete compositions with waste use can be recommended for widespread application, rational use of resources, and production of durable high-quality concretes. The application of additives based on polycarboxylates makes it possible to produce concretes with the reduction of cement consumption in the mixture by 10–20% and decrease in the mode of thermo-wet treatment by two times.

scholarly journals Production of compound mineral fertilizers as a method of utilization of waste products in chemical company Alwernia S.A.

2010 ◽  
Vol 12 (3) ◽  
pp. 6-9 ◽  
Author(s):  
Przemysław Malinowski ◽  
Mirosław Olech ◽  
Józef Sas ◽  
Wiesław Wantuch ◽  
Andrzej Biskupski ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Laboratory Tests ◽  
Raw Materials ◽  
Mineral Fertilizers ◽  
Waste Site ◽  
Waste Products ◽  
Chemical Company ◽  
Compound Fertilizer ◽  
Research Cycle ◽  
Pilot Plant Scale

Production of compound mineral fertilizers as a method of utilization of waste products in chemical company Alwernia S.A. The results of investigations on a possible utilization of waste products formed during the production of commercial and food inorganic salts are presented. Application of wastes in the production of compound fertilizers was suggested. The work covered a full research cycle starting from laboratory tests and ending on the production implementation. Fertilizer formulas were developed on the basis of laboratory tests. A possible production of fertilizers of suggested compositions was tested on a pilot plant scale. The compound fertilizer production with the use of waste raw materials was implemented in Chemical Company Alwernia S.A. It reduced the amount of wastes directed to industrial waste site.

scholarly journals Aspects of the Circular Economy in the Member States of the European Union

2021 ◽  
Vol 10 (3) ◽  
pp. 39
Author(s):  
Florina Bran ◽  
Dumitru Alexandru Bodislav ◽  
Svetlana Platagea Gombos ◽  
Petrică Sorin Angheluță
Keyword(s):  
European Union ◽  
Natural Resources ◽  
Raw Materials ◽  
Sustainable Use ◽  
Municipal Waste ◽  
Low Carbon ◽  
The European Union ◽  
Green Technologies ◽  
Low Carbon Economy ◽  
Use Of Resources

The interest in having a low-carbon economy has led to transformations in the economies of all countries. New economic models are being put into practice. New jobs are being created. Sustainable use of resources is becoming more important. The article presents an analysis of waste generation in the member countries of the European Union. The study of the possibility of reusing certain materials started from the design phase of the finished product. Production processes can also contribute to saving natural resources. This can create new business opportunities and avoid inefficient waste management. The article also analyzes the degree of municipal waste collection, as well as the share of recycled municipal waste. In the production process, the recovery of certain materials and then their use can lead to savings in the use of raw materials. This reduces the pressure exerted by the extraction of raw materials on the environment. Further investments in green technologies will contribute to the efficient use of natural resources, restore biodiversity and reduce pollution.

USE OF INDUSTRIAL BY-PRODUCTS AS MINERAL POWDERS IN ROAD CONSTRUCTION

2021 ◽  
Vol 2021 (24) ◽  
pp. 193-205
Author(s):  
Ivan Kopynets ◽  
◽  
Volodymyr Kaskiv ◽  
Оleksii Sokolov ◽  
◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Industrial Waste ◽  
Information Sources ◽  
Raw Materials ◽  
Road Construction ◽  
Industrial Wastes ◽  
Raw Material ◽  
Concrete Mixture ◽  
Mineral Powder ◽  
By Products

Introduction. Mineral powder is an important structural component of asphalt concrete. Mineral powder is the output material obtained after crushing of rocks or powdery remains of the industry. It is made by grinding the following hard rocks: dolomitized limestone, dolomite, limestone. Non-carbonate raw materials and industrial wastes are also used as raw materials. Problem statement. Road construction with the arrangement of asphalt concrete pavements requires a number of components of these mixtures. Due to this, the need in scarce carbonate mineral powders is growing. Therefore, it is advisable to consider researches directed on studying a number of by-products of industry in order to use them as a mineral powder of asphalt concrete. Purpose. To analyze the existing experience of using industrial waste as a mineral powder in production of asphalt concrete mixture for further introduction and improvement of environmental safety and operational characteristics of pavement due to new road construction materials. Materials and methods. Analysis of information sources and experience in the use of industrial waste as a mineral powder and study of requirements for materials and their composition. Results. An analytical review of the experience of using industrial waste as a mineral powder was performed. Various materials have been studied and analyzed, requirements for materials, their particle size distribution, content in asphalt concrete mixture had been established. Conclusions. Analysis of information sources regarding use of industrial waste as a raw material for the production of mineral powder had determined that they are used in the whole volume in different countries and in most cases in road construction. It had been found that the use of various wastes during road construction is a viable option that needs further study.

scholarly journals Implementation of Circular Economy Elements in the Mining Regions

2019 ◽  
Vol 105 ◽  
pp. 04048
Author(s):  
Alina Pinchuk ◽  
Nataliia Tkalenko ◽  
Vyktoriia Marhasova
Keyword(s):  
Waste Management ◽  
Natural Resources ◽  
Social Development ◽  
Circular Economy ◽  
Industrial Waste ◽  
Raw Materials ◽  
Industrial Park ◽  
Waste Products ◽  
Economic Use ◽  
Mining Regions

The article is devoted to the issue of waste management in the mining regions, as the problems of industrial waste or waste products will always be relevant in nowadays. The most experts focus on urbanization processes, on increasing the resources’ requirements, which in turn will increase the needs of the population and environmental pollution. The processing of waste in the mining regions can be achieved through the use of elements of the circular economy, which will lead to the economic use of natural resources and the interaction of economic, environmental and social development. The building of Eco-Industrial Park using a sector-clustered approach to waste management is suggested in the conclusions. The Eco-Industrial Park will allow related industries to work in symbiosis, where secondary raw materials can be involved in recycling, remanufacturing, recovery, regeneration.

scholarly journals Helping the Planet with Healthy Eating Habits

2018 ◽  
Vol 2 (1) ◽  
pp. 156-167 ◽  
Author(s):  
Luciana Baroni ◽  
Denise Filippin ◽  
Silvia Goggi
Keyword(s):  
Environmental Sustainability ◽  
Food Production ◽  
Alternative Fuels ◽  
Eating Habits ◽  
Raw Materials ◽  
Renewable Energy Sources ◽  
Waste Products ◽  
Use Of Resources ◽  
Alternative Practices ◽  
Eating Practices

Abstract A growing number of people are paying more attention to the concept of environmental sustainability, implementing sustainable eating practices to minimize the waste of resources, and the production of waste products related to the food production process. The careful application of sustainable eating practices makes it possible to help the environment, public health, and society by increasing the availability of food and farmland to feed every inhabitant on Earth. Individuals impact the environment through their eating because of three factors: food, energy used in the home, and transport. The most powerful of these factors is food. Animal food production involves a greater use of resources (raw materials, land, water, energy) and produces more pollutants (chemical residues from agriculture, greenhouse gases, manure) than plant-based food. Thus, a lifestyle based on eating plant foods is not only beneficial for the environment, but also protective of a consumer’s health. Alternative practices, such as using renewable energy sources or alternative fuels, however desirable they may be in combination with limiting the consumption of animal foods, are more difficult to implement across society. To change one’s eating habits is, on the other hand, a simple, fast, and inexpensive approach.

scholarly journals Use of Marble Powder and Tile Powder as Cementitious Materials in Concrete

2020 ◽  
Vol 10 (2) ◽  
pp. 5448-5451 ◽  
Author(s):  
N. Bheel ◽  
K. A. Kalhoro ◽  
T. A. Memon ◽  
Z. U. Z. Lashari ◽  
M. A. Soomro ◽  
...  
Keyword(s):  
Construction Industry ◽  
Environmental Sustainability ◽  
Industrial Waste ◽  
Raw Materials ◽  
Cementitious Materials ◽  
Hardened Concrete ◽  
Waste Products ◽  
Cement Ratio ◽  
Concrete Cylinders ◽  
Marble Powder

The use of agricultural and industrial waste products as raw materials in the construction industry is investigated extensively. These products are inexpensive and help in environmental sustainability, as environmental pollution is thus reduced. This study focused in investigating the properties of fresh, physical and hardened concrete blended with marble (MP) and tile powder (TP) of several proportions, such as 0%, 5% (2.5%MP + 2.5%TP), 10% (5%MP + 5%TP), 15% (7.5%MP + 7.5%TP), and 20% (10%MP + 10%TP) by weight. A total of 60 concrete cylinders were cast with 0.45 water/cement ratio, 1:1.96:2.14 mix ratio, and were cured for 7 and 28 days. These cylinders were used for checking the compressive and splitting tensile strength of concrete. The experimental results showed that compressive and splitting tensile strengths were increased by 8.90% and 8.30% respectively for the 2.5%MP + 2.5%TP sample after 28 days.

scholarly journals Mathematical modeling of pollutant emissions for the expansion of methods of disposal of industrial waste

2017 ◽  
pp. 146-150
Author(s):  
K.G. Pugin ◽  
◽  
V.K. Pugina ◽  
Keyword(s):  
Mathematical Modeling ◽  
Industrial Waste ◽  
Raw Materials ◽  
Aqueous Media ◽  
Construction Materials ◽  
Pollutant Emissions ◽  
Aquatic Environments ◽  
Waste Products ◽  
Environmental Objects ◽  
Long Time

The use of waste products in substitution of natural raw materials in the preparation of construction materials and structures may lead to contamination of hazardous chemicals that are included in this waste, environmental objects. Currently, evaluation of such exposure is carried out in the laboratory without considering changes in the external environmental influences during their use and takes a long time. The article discusses the possibility of the use of mathematical modeling to obtain data on the content of heavy metals in aquatic environments on the example of vanadium. As the mode! objects considered cement placed in neutral and acidic aqueous media.

scholarly journals Rheological and Microbiological Characteristics of Hops and Hot Trub Particles Formed during Beer Production

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 681
Author(s):  
Monika Sterczyńska ◽  
Marek Zdaniewicz ◽  
Katarzyna Wolny-Koładka
Keyword(s):  
Rheological Properties ◽  
Raw Materials ◽  
Raw Material ◽  
Microbiological Analysis ◽  
Waste Products ◽  
Low Viscosity ◽  
Post Process ◽  
High Shear Rates ◽  
Different Temperatures ◽  
Beer Production

During the production of beer, and especially beer wort, the main wastes are spent grain and hot trub, i.e., the so-called “hot break.” Combined with yeast after fermentation, they represent the most valuable wastes. Hot trub is also one of the most valuable by-products. Studies on the chemical composition of these sediments and their rheological properties as waste products will contribute to their effective disposal and even further use as valuable pharmaceutical and cosmetic raw materials. So far, hot trub has been studied for morphology and particle distribution depending on the raw material composition and beer wort extract. However, there are no preliminary studies on the rheological properties of hot trub and hops. In particular, no attention has yet been paid to the dependence of these properties on the hop variety or different protein sources used. The aim of this study was to examine the effect of different hopping methods on hot trub viscosity and beer wort physicochemical parameters. Additionally, the hop solutions were measured at different temperatures. A microbiological analysis of hop sediments was also performed to determine the post-process survival of selected microorganisms in these wastes. For manufacturers of pumps used in the brewing industry, the most convenient material is that of the lowest viscosity. Low viscosity hot trub can be removed at lower velocities, which reduces costs and simplifies washing and transport. The sediments also had similar equilibrium viscosity values at high shear rates.

scholarly journals Global Warming Potential of a New Waterjet-Based Recycling Process for Cathode Materials of Lithium-Ion Batteries

Batteries ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 29
Author(s):  
Leonard Kurz ◽  
Mojtaba Faryadras ◽  
Ines Klugius ◽  
Frederik Reichert ◽  
Andreas Scheibe ◽  
...  
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Waste Treatment ◽  
Raw Materials ◽  
Lithium Ion ◽  
Primary Data ◽  
Recycling Process ◽  
Use Of Resources ◽  
Mechanical Removal ◽  
Increasing Demand

Due to the increasing demand for battery electric vehicles (BEVs), the need for vehicle battery raw materials is increasing. The traction battery (TB) of an electric vehicle, usually a lithium-ion battery (LIB), represents the largest share of a BEV’s CO2 footprint. To reduce this carbon footprint sustainably and to keep the raw materials within a closed loop economy, suitable and efficient recycling processes are essential. In this life cycle assessment (LCA), the ecological performance of a waterjet-based direct recycling process with minimal use of resources and energy is evaluated; only the recycling process is considered, waste treatment and credits for by-products are not part of the analysis. Primary data from a performing recycling company were mainly used for the modelling. The study concludes that the recycling of 1 kg of TB is associated with a global warming potential (GWP) of 158 g CO2 equivalents (CO2e). Mechanical removal using a water jet was identified as the main driver of the recycling process, followed by an air purification system. Compared to conventional hydro- or pyrometallurgical processes, this waterjet-based recycling process could be attributed an 8 to 26 times lower GWP. With 10% and 20% reuse of recyclate in new cells, the GWP of TBs could be reduced by 4% and 8%, respectively. It has been shown that this recycling approach can be classified as environmentally friendly.

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