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This investigation reports the influence of industrial waste material namely slag on the performance on cement composites. Recall that slag is a landfill material resulting from the extraction process of steel making. The scrap material was physically treated by crushing followed by ball milling and screening. The slag was mixed with the Portland cement and compared with traditionally Portland cement composite. The mix was casted into the desired moulds and allowed to cure at room temperature for 48h followed by o...

The circular economy concept is gaining increasing attention as a potential way to raise prosperity on the one hand and reduce the consumption of primary materials and energy and decrease waste generation on the other. One of the main principles of a circular economy is designing without waste ? the target is to ?close the loop? of the product life cycle. In particular, this concerns sectors such as the automotive industry, both because of its strategic economic importance and due to the potential and significance...

This paper presents the results of a multidisciplinary literature review of issues related to Circular Economy, waste management, recycling, eco-innovation, decision-supporting and environmental management that help to identify the key expectations, opportunities and problems related to decisions supporting waste management under the Circular Economy concept. The research findings enable identification of the areas of waste management based on the Circular Economy concept and the functions of the information syste...

Sustainable use of natural resources and recycling/reuse of wastes are two of most current upcoming environmental problems, and they play an important role in the circular economy, as recycling of waste can give an important contribution to the reduction of natural resources. Ceramic tiles production is one of the industrial activities involved in using natural resources like clays and sands. On the other hand, in Italy, sanitary landfills are, nowadays, the main place, where bottom ashes are finally treated. This...

Industrial waste is a very important environmental problem. It is the result of business activities carried out by man. Waste is practically manufactured at every stage of production and service activities. In many cases, waste includes very dangerous and toxic products that negatively affect the soil, air and water. In Poland about 90% of all waste is industrial waste, coming mainly from mining, metallurgy, power industry, chemical industry, processing industry, food industry and others. This waste causes a very ...

One of the most important sectors in the Romanian beverage industry is beer production. In 2015 this sector brought revenues of 533 million Euros to the state budget. The Romanian consume an average of 80 liters per capita so that Romania ranks 7th in the hierarchy of European beer-consuming countries according to the Brewers of Europe. The largest beer consumers from Europe in 2015 were the Czechs with 143 L per capita followed by Germans (106 L per capita) and Austrians (105 L per capita). In our case 97% of bee...

The ENVIREE project is focused on the working-out of efficient and environmentally-friendly rare earth elements (REE) recovery technologies from selected industrial waste disposal sites. Compared secondary sources from metal production processes are characterized by the highest REE content among the European objects assessed under the project. The paper presents the environmental aspects of REE recovery from New Kankberg (Sweden) and Covas (Portugal) tailings. Based on the results from stage II of the study, i.e. ...

The paper discusses problems associated with attempts at limiting waste that is the result of the functioning of the modern economy. This is associated with the use of new, sustainable systemic solutions in terms of the manner of designing cities and buildings that use existing resources to the highest possible degree while not generating waste. The impact of new, ecological cities is to be neutral to the extant ecosystem. Buildings are to be erected solely from recyclable materials and roofs covered in greenery i...

The use of weak local soil as well as the recycling of existing worn-out structures such as old road pavements using micro particle road binders are a beneficial ecological solutions. Parameters of the soil stabilized with binders significantly affect the load bearing capacity and durability of the built structures. Mechanical parameters of the soil are therefore needed in the analysis and design of soil structures. Determination of the exact value of these parameters in indirect tensile test is related to the nee...

The goal of this article is answering the question about what role can be played - as well as what role is actually being played - by thermal waste processing plants in Poland. The beginning of the XXI century is a time of new pro-environmental ideas. This is associated with an increase in the awareness of societies regarding the necessity of protecting the planet that we live on, as well as with the depletion of the natural resources that are at our disposal. In the face of such intense environmental changes, it ...

Energy needs are increasingly growing due to the mechanization of industry by the industrial revolution, increased production in line with increased population, higher prosperity levels, and abundance of electrical tools. Mineral oil get polluted chemically and physically and become unusable after a certain amount of usage. As natural resources are limited, mineral waste oil need to be recycled in order to reduce production costs and achieve sustainable energy acquisition. Cement factories are energy-intensive bus...

The main aim of this article is to present the current situation of waste management in Poland. The most frequently used methods of waste treatment, with particular emphasis on the use of thermal methods. In recent years, the stream of municipal waste per capita is constantly increasing which makes the municipal waste management is becoming one of the biggest challenges in the twenty-first century. By 2016, most of the waste was not reused, but its way directly to the landfill. Legal restrictions introduced from 1...

The goal of this article is answering the question regarding the conditions that need to be met by thermal waste processing plants in terms of their location. Based on analyses of a set of operational Polish thermal waste processing plants, as well as structures which are not yet operational but that have a known location, the author performed research aimed at determining the accessibility of the abovementioned structures. The author also performed analyses regarding the areas in which thermal waste processing pl...

Processing the waste paper produces huge amounts of waste - papermaking sludge. This kind of waste includes around 50 % of inorganic material and high proportion of water. Its current economic recovery is very limited, which affects the overall efficiency of recycling paper. However, the elementary and chemical composition has a high potential for wider and more economically efficient use in various industrial fields. The object of this paper is research of composition and physical properties of such sludge from o...

Plastics are materials used in almost all areas of human activity and also in various branches of industry and in life in general. The growing production of plastics, their volume are evenly growing up also in the waste, therefore it is necessary to solve the plastic waste problem. The contribution deals with the using of recycled plastics plates and testing of sorted plastic waste. From the plastic waste as the semi-products re prepared for example the plastic plates by extruding technology, it means recycled pla...

In EU countries, it is currently enacted to separate all recyclable and compostable elements of municipal waste. The products of composting biodegradable fractions of municipal waste are finally used in agriculture and horticulture depending on their quality and maturity. When disposing biodegradable municipal waste (hereinafter BDMW), it is always necessary to keep in view that its decomposition is assisted by a wide scale of various organisms out of which some may be a reason of occurrence of serious biological ...

In the framework of this paper, Latvian jewelry, which is made in the past twelve years, is studied by the field research method. The materials used and technologies applied in the making of jewelry were the subject of the research. Besides the specific examples of jewelry, also their authors, which have furthered use of advanced and favorable for environmental methods in the making of jewelry. Research data are obtained based on database developed by the author, which can be used in the Internet, where 804 photos...

The problems of regeneration and recycling of the calcareous component in the composition of chemical and metallurgical industry waste products are studied. The possibility of obtaining chemically precipitated calcium carbonate from gypsum wastes and slimes of alumina production is shown on the basis of a number of low-temperature processes that ensure binding of carbon dioxide as part of production emissions. The influence of quality of raw materials on the volume of belite sludge which is formed during the proce...