The rapid deterioration of the environmental situation comes mainly from pollution by industrial and municipal wastes in form landfilled wastes. only way out this threatening is urgent utilization all these as valuable raw materials alternative to traditional natural materials. This article describes detail result complete replacement with four wastes—from iron ore processing, cellulose pulp pr...

Mining and quarrying waste is the second largest stream in Europe. Sulfidic ore processing residues (tailings) pose a large challenge, because they contain hazardous metal(loid)s can lead to acid mine drainage. However, tailings also valuable base, precious, critical metals, which be used different technological applications, as well silicates clay minerals that offer possibilities for use buil...

The aim of this paper is to evaluate the feasibility of obtaining alumina from boehmite using a free, clean, and unlimited power source as the solar energy. Boehmite was obtained by hydrothermal treatment of a hazardous waste coming from aluminum slag milling. The waste is considered as a hazardous substance because of it releasing toxic gases (hydrogen, ammonia, methane, and hydrogen sulfide) ...

Supercritical CO2 fluid leaching (SFL) method using supercritical CO2 fluid containing a complex of HNO3 tri-n-butyl phosphate (TBP) was applied to removal of uranium from radioactive solid wastes. Sea sands, incineration ashes and porous alumina bricks were employed as matrixes of simulated solid wastes. Real radioactive incineration ash wastes and firebrick wastes were also subjected to the S...

Today, with the advancement of technology, turning waste into fuel has been considered as an inexhaustible source of energy production, especially in industries with high energy consumption. The most important of these industries are Cement and Iron Smelting factories. Babol, as one of the largest provinces in the north of the country, has been facing waste management crisis for several years w...