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The development of regional or local maximum permissible concentration (MPC) for a pollutant in the soil requires the field or laboratory simulation of pollution. The experimental design should include the control (uncontaminated soil with the background concentration of the pollutant) and at least three treatments with different pollutant concentrations in the range between 2 and 10 background values. Experiments are performed in at least three replicates. Soil samples are taken 30 days after contamination. In ea...

The benefit of recycling industrial by-products in the construction industry led to growing interest in exploring and potentially exploiting these by-products, in the context of sustainable development, and in creating new materials. Fly ash is a type of byproduct waste, having enjoyed considerable attention, especially from the perspective of creating and perfecting fly ash based geopolymer concrete. In Romania, over 80% of industrial waste is deposited, this being the most widely used method of waste disposal. T...