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ZvolenskпїЅ teplпїЅrenskпїЅ Inc. is a company that has been providing heating for the town of Zvolen for decades. After the reconstruction in 2008, it is using low-sulphur lignite, wood chips and natural gas as a fuel, resulting in fine ash, that is collected nearby; however, it is spread by natural forces into surrounding gardens, forests, soil and water. To dispose of this ash ecologically, there is a possibility of using the Oyster mushroom Pleurotus ostreatus (Jacq.) P. Kumm, namely its ability of absorbing th...

Water jet technology is friendly and belongs to green technology. Water jet technology is divided depending on whether the water is used only water or a mixture of an abrasive and water to clear water jet and abrasive water jet technology. It is possible to divide as the paper material to the steel. This progressive technology is applied in various sectors of industry. During the cutting operations creates the waste in the forms as used abrasive material, polluted water, sludge, used material and other rest materi...

Sustainable waste management has been increasing its importance recently inside the industrialized world. In accordance with European Union guidelines, Spain is carrying through an advanced policy that encourages waste reuse and recycling, it has also at social and economic agents disposition integrated management plans. From 2015 to 2022, it has been approved a plan which provides guidelines. However, that document, which is quite perfect, doesnпїЅt include an inventory of suitable mining holes for being use as l...