Browse

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...

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...

Many entities from energy sector are investing in the rational use of waste generated in the energy production process, using them as valuable raw materials. Measurable economic and environmental benefits associated with the recovery of waste lead to the development of new directions for their reuse. The proper organization of the logistic chain allows for the efficient management of energy waste from the manufacturer's point of view. Innovative technical and process solutions from the energy industry are conduciv...

Active mining operations in range of gaining raw material have very negative impact on the natural environment. Long-term observations proved that mining exploitation causes very significant changes in natural environment, in the region in which it is conducted. Particularly, this is applies to underground exploitation of hard coal. Underground exploitation and associated coal production cause that a lot of post-mining wastes are formed. These wastes for several years of exploitation in Poland were deposited in po...

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 ...

Existing EU standards for environmental protection are strictest in the world. Environmental policy helps to create a green economy, protect the environment, and take care of the health and quality of life of the people of the EU. The nature and content of environmental policy at the EU level was analyzed and the main requirements and trends in its development are specified. The analysis covered trends and potential areas for improvement of environmental policy and also the system of principles required to build t...

With the current situation in world economy, rare earth elements are a valuable resource for many innovative technologies. Low supply of these elements and sparse mining sources concentrated in just a few countries caused REE to become a resource critical to the development of many high-tech branches of the industry. Although rare earth elements are widespread in the nature, due to their low concentration in most minerals, their processing based on flotation, gravity or magnetic separation of a concentrate is ofte...

The key issue of Polish municipal waste management system is still too little progress in subjecting waste to recycling processes. Legislative changes implemented in this area are intended to build a rational and integrated system that meets the stringent requirements of the European Union. A set of requirements for the formal regulations generates the need for a comprehensive approach to waste flows between participants of the system. Adoption of such a course of action enables to meet the mandatory requirements ...

Lake Baikal is a world heritage site, one of the most valuable sources of a large volume of fresh water of its own purity. A serious threat to the endemic ecosystems of Lake Baikal, which determines the properties of Baikal water, are the wastes from the Baikal pulp and paper mill accumulated over the years of its operation (1966-2003). Sludge accumulators of this enterprise finding on the shore of Lake Baikal. They contains more than 6.2 million cubic meters of various wastes. There is a rather real threat of pol...

Sustainable design attempts to be perceptive to the environmental impact of the building project at each construction stage by evaluating the site, the embodied energy of the selected materials, as well as the proper construction techniques, adjusted to the local conditions. Moreover, physical hazards (flammability, corrosion) and/ or health hazards (toxicity, irritations) of the materials are especially important not only for the construction workers, building owners and occupants, but also for the environment, c...

As direct consequence of the urban development, waste management is a multidimensional issue that incorporates political, institutional, social, environmental, and economic aspects. The paper aims to analize the efficiency of waste management strategy, implemented in the town of Boto?ani. It is also considering, the population?s level of education and perception, regarding selective collection and the quality of public Sanitation Services. Boto?ani is a second rank town (the most important in Boto?ani county), loc...