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The circular economy implementation demands following sustainability principles. Any degraded area, including brownfields and dumps, needs planning and assessment for primary reuse in future, whether it is green space, residential area or newly developed industrial center. Brownfields usually are associated with environmental pollution, surrounding contamination, and lost-to-economy abandoned resources. Responsible environmental and social governance principles include evaluation criteria of reclamation options. E...

Landfill and dump remediation and waste recovery are often needed as circular economy approach is more and more demanding. Complicated solutions are needed to conserve the landfill space as well as overall reduction of the amount of landfilled material is not an easy task because of the different content of contaminants. Primitive soil excavating and transporting to hazardous waste landfills is not the best solution anymore. Series of experiments using landfill mined fine fraction of waste considering complex form...

Commonly the product’s life cycle ends up with waste. Conventionally the remains go to the landfill, earlier times – a dumpsite, the least manageable waste disposal method. To ensure that lost to society materials are treated with high priority, the European Union (EU) has implemented the Circular Economy Action Plan, continuing the monitoring of old dumpsites. The hierarchy of waste management points at preventing raw material use at first sight, but the following steps point at material reuse and recycling. The ...

The cycle of nitrogen is an essential, integral process in nature. Since amino acids form an important part of life-building and maintenance, nitrogen and its chemical compounds are an integral nutrient and ingredient for all living organisms. Understanding the processes in soil is essential because it helps both to ensure agricultural productivity, to control various, soil-based, unwanted pests and diseases, and, crucially, to limit climate change-related factors directly related to soil. The nitrogen cycle resea...

Energy policy of the European Union aims to move towards the sustainable and green energetics, therefore, identification and exploitation of renewable energy resources is of high importance in all EU member states. One of the types of renewable energy production is cogeneration of heat and power from biomass. Cogeneration becomes more and more topical in the Baltic States as various kinds of biomass, e.g., forestry and agriculture residues, cultivated plants for biomass are rather easy obtainable. For example, in ...