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Biochar is the carbon-rich product produced by thermal decomposition of organic material in anaerobic conditions or under limited supply of oxygen. The removal of pollutants from water using biochar materials is a low cost, sustainable approach for providing pure water. The adsorption of mercury ions onto pyrolyzed chicken manure, sewage sludge and rye straw was studied and compared with the adsorption...
The paper presents the physical and chemical properties of glycerol and how it is used. It also shows methods of the industrial processing of glycerine fraction – in terms of obtaining and concentrating it – and methods of biodiesel production, of which glycerine is a by-product. The paper evaluates the possibility of concentrating glycerol by removing other compounds of technical glycerine using...
The paper presents the treatment by physical and chemical activation of oxidised oil from walnuts on carbon adsorbents obtained from walnut shells. Estimated sorption properties of activated carbons were shown on the methylene and iodine adsorption number. In order to assess the oil regeneration process, the following quality indicators were investigated: the peroxide number, the anisidine value,...
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