Expluatation of enrichment operating stages with sodium cyanide, leads to toxic waste production in large volumes: wastewaters, gas emissions, solid cyanidation waste. As a result of incorrect environmental management on gold recovery plants, this negative impact leads to propagation of toxic pollutant substances. It could be the reason of nature widescale degradation in the gold factories affected area. In turn, the environment protection measures realesation needs to accounting of the contaminants properties and their migration conditions in the natural environment.
The work is devoted to the study of physicochemical parameters of urban sewage sludge and establishment of technical principles of utilization of industrial volumes of urban sewage sludge.
The article presents thermodynamic calculations of decomposition reactions of carbohydrates and their derivatives under the action of concentrated sulfuric acid. The conducted experiments showed the possibility of rubber decomposition with the formation of carbonaceous matter and sulfur dioxide, which is used to obtain sulfuric acid. The process of rubber utilization is presented on the website.
This work is focused on creating a technological option for joint processing of BOF, blast furnace and open-hearth dusts with subsequent involvement of semi-products in the main production of Severstal and similar enterprises.
Thermodynamic calculations of degradation reactions of hydrocarbons and their derivatives under the action of concentrated sulfuric acid are presented. The experiments have shown the possibility of rubber destruction with the formation of carbon material and sulfuric gas, which is used for the production of sulfuric acid. The technological scheme of rubber utilization is proposed.
